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Yakut I, Kanal Y, Konte HC, Ozbay MB, Yüksekkaya B, Celebi OO, Ozeke O, Aydoğdu S. Baseline coronary artery stenosis severity is an independent predictor of subsequent poor sleep quality in patients with acute coronary syndrome. Coron Artery Dis 2024; 35:299-308. [PMID: 38656277 DOI: 10.1097/mca.0000000000001337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
AIM To investigate the relationship between coronary artery lesion severity determined using the baseline SYNTAX score and sleep problems that might occur after discharge determined using the Pittsburgh Sleep Quality Index (PSQI). METHODS This prospective study included patients with first acute coronary syndrome (ACS) who underwent percutaneous coronary angiography between February 2019 and August 2019. The severity of coronary artery stenosis was classified according to coronary angiography and SYNTAX scores. Patients were grouped as those with a SYNTAX score of ≤22 and >22. Sleep quality after discharge was classified according to the PSQI. PSQI ≤5 represented good sleep quality, and PSQI >5 represented poor sleep quality. Univariate and multivariate logistic regression was used to investigate the relationship between sleep quality and coronary artery stenosis severity. RESULTS A total of 424 patients were included in the study. Of these, 294 (69.34%) had a SYNTAX score of ≤22 and 130 (30.66%) had a SYNTAX score of >22. The mean age of all patients was 60.37 ± 12.23 years, 59.69 ± 11.85 years in the SYNTAX ≤22 groups and 61.90 ± 12.98 years in the SYNTAX >22 group (P = 0.086). The majority (78.54%) of the patients were male and there was no significant difference between the SYNTAX ≤22 group and the SYNTAX >22 group in terms of sex distribution (P = 0.383). According to the univariate logistic regression analysis, age (P = 0.014), diabetes (P = 0.027), left ventricular ejection fraction (P = 0.001), estimated glomerular filtration rate (P = 0.039), creatine kinase MB (P = 0.040) and SYNTAX scores (P < 0.001) were significantly associated with high PSQI global scores (>5). However, according to the multivariate logistic regression analysis results, high (>22) SYNTAX scores were the only factor independently associated with the high (>5) PSQI global scores [odds ratio, 3.477; 95% confidence interval (CI), (2.190-5.522); P < 0.001]. Complete revascularization group had significantly higher sleep latency and sleep duration time, sleep efficiency and the percentage of patients with PSQI global score of ≤5 than the incomplete revascularization group (P < 0.001 for all). CONCLUSION Among patients with ACS, those with high SYNTAX scores should be monitored more carefully for sleep disorders that may occur later.
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Affiliation(s)
- Idris Yakut
- Department of Cardiology, Medipol İstanbul University, İstanbul, Turkey
| | - Yücel Kanal
- Department of Cardiology, Sivas Cumhuriyet University, Sivas, Turkey
| | - Hasan Can Konte
- Department of Cardiology, Medipol İstanbul University, İstanbul, Turkey
| | - Mustafa Bilal Ozbay
- Metropolitan Hospital Center, New York Medical College, New York City, New York, USA
| | - Baran Yüksekkaya
- Department of Cardiology, Health Sciences University, Ankara City Hospital, Ankara, Turkey
| | - Ozlem Ozcan Celebi
- Department of Cardiology, Health Sciences University, Ankara City Hospital, Ankara, Turkey
| | - Ozcan Ozeke
- Department of Cardiology, Health Sciences University, Ankara City Hospital, Ankara, Turkey
| | - Sinan Aydoğdu
- Department of Cardiology, Health Sciences University, Ankara City Hospital, Ankara, Turkey
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2
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Min CY, Gao Y, Jiang YN, Guo YK, Shi K, Yang ZG, Li Y. The additive effect of metabolic syndrome on left ventricular impairment in patients with obstructive coronary artery disease assessed by 3.0 T cardiac magnetic resonance feature tracking. Cardiovasc Diabetol 2024; 23:133. [PMID: 38654269 DOI: 10.1186/s12933-024-02225-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 04/07/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Metabolic syndrome (MetS) can increase the risk of morbidity and mortality of cardiovascular disease and obstructive coronary artery disease (OCAD), which usually have a poor prognosis. This study aimed to explore the impact of MetS on left ventricular (LV) deformation and function in OCAD patients and investigate the independent factors of impaired LV function and deformation. MATERIALS AND METHODS A total of 121 patients with OCAD and 52 sex- and age-matched controls who underwent cardiac magnetic resonance scanning were enrolled in the study. All OCAD patients were divided into two groups: OCAD with MetS [OCAD(MetS+), n = 83] and OCAD without MetS [OCAD(MetS-), n = 38]. LV functional and global strain parameters were measured and compared among the three groups. Multivariable linear regression analyses were constructed to investigate the independent factors of LV impairment in OCAD patients. Logistic regression analysis and receiver operating characteristic (ROC) curve analysis were performed to test the prediction efficiency of MetS for LV impairment. RESULTS From controls to the OCAD(MetS-) group to the OCAD(MetS+) group, LV mass (LVM) increased, and LV global function index (LVGFI) and LV global longitudinal peak strain (GLPS) decreased (all p < 0.05). Compared with the OCAD(MetS-) group, the LV GLPS declined significantly (p = 0.027), the LVM increased (p = 0.006), and the LVGFI decreased (p = 0.043) in the OCAD(MetS+) group. After adjustment for covariates in OCAD patients, MetS was an independent factor of decreased LV GLPS (β = - 0.211, p = 0.002) and increased LVM (β = 0.221, p = 0.003). The logistic multivariable regression analysis and ROC analysis showed that combined MetS improved the efficiency of predicting LV GLPS reduction (AUC = 0.88) and LVM (AUC = 0.89) increase. CONCLUSIONS MetS aggravated the damage of LV deformation and function in OCAD patients and was independently associated with LV deformation and impaired LV strain. Additionally, MetS increased the prediction efficiency of increased LVM and decreased LV GLPS. Early detection and intervention of MetS in patients with OCAD is of great significance.
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Affiliation(s)
- Chen-Yan Min
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Yue Gao
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Yi-Ning Jiang
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Ying-Kun Guo
- Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Department of Radiology, West China Second University Hospital, Sichuan University, 20# Section 3, Renmin South Road, Chengdu, 610041, Sichuan, China
| | - Ke Shi
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China
| | - Zhi-Gang Yang
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China.
| | - Yuan Li
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu, 610041, Sichuan, China.
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Fu D, Xiao X, Gao T, Feng L, Wang C, Yang P, Li X. Effect of Calcification Based on Computer-Aided System on CT-Fractional Flow Reserve in Diagnosis of Coronary Artery Lesion. Comput Math Methods Med 2022; 2022:7020209. [PMID: 35082914 PMCID: PMC8786524 DOI: 10.1155/2022/7020209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 12/10/2021] [Accepted: 12/21/2021] [Indexed: 11/18/2022]
Abstract
This study was to analyze the diagnostic value of coronary computed tomography angiography (CCTA) and fractional flow reserve (FFR) based on computer-aided diagnosis (CAD) system for coronary lesions and the possible impact of calcification. 80 patients who underwent CCTA and FFR examination in hospital were selected as the subjects. The FFR value of 0.8 was used as the dividing line and divided into the ischemic group (FFR ≤ 0.8) and nonischemic group (FFR > 0.8). The basic data and imaging characteristics of patients were analyzed. The maximum diameter stenosis rate (MDS %), maximum area stenosis rate (MAS %), and napkin ring sign (NRS) in the ischemic group were significantly lower than those in the nonischemic group (P < 0.05). Remodeling index (RI) and eccentric index (EI) compared with the nonischemic group had no significant difference (P > 0.05). The total plaque volume (TPV), total plaque burden (TPB), calcified plaque volume (CPV), lipid plaque volume (LPV), and lipid plaque burden (LPB) in the ischemic group were significantly different from those in the non-ischemic group (P < 0.05). MAS % had the largest area under curve (AUC) for the diagnosis of coronary myocardial ischemia (0.74), followed by MDS % (0.69) and LPV (0.68). CT-FFR had high diagnostic sensitivity, specificity, accuracy, truncation value, and AUC area data for patients in the ischemic group and nonischemic group. The diagnostic sensitivity, specificity, accuracy, cutoff value, and AUC area data of CT-FFR were higher in the ischemic group (89.93%, 92.07%, 95.84%, 60.51%, 0.932) and nonischemic group (93.75%, 90.88%, 96.24%, 58.22%, 0.944), but there were no significant differences between the two groups (P > 0.05). In summary, CT-FFR based on CAD system has high accuracy in evaluating myocardial ischemia caused by coronary artery stenosis, and within a certain range of calcification scores, calcification does not affect the diagnostic accuracy of CT-FFR.
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Affiliation(s)
- Dongliang Fu
- Department of Cardiology, Integrated Traditional Chinese and Western Medicine, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang District, Beijing 100029, China
| | - Xiang Xiao
- Department of Cardiology, Integrated Traditional Chinese and Western Medicine, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang District, Beijing 100029, China
| | - Tong Gao
- Graduate School, Peking Union Medical College, Beijing 100730, China
| | - Lina Feng
- Department of Cardiology, Integrated Traditional Chinese and Western Medicine, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang District, Beijing 100029, China
| | | | - Peng Yang
- Department of Cardiology, Integrated Traditional Chinese and Western Medicine, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang District, Beijing 100029, China
| | - Xianlun Li
- Department of Cardiology, Integrated Traditional Chinese and Western Medicine, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang District, Beijing 100029, China
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Gentile D, Toriello F, Santangelo G, Bursi F, Carugo S. Spontaneous coronary dissection in a patient with Beals syndrome. J Cardiovasc Med (Hagerstown) 2021; 22:e18-e20. [PMID: 33927143 DOI: 10.2459/jcm.0000000000001200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Domitilla Gentile
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Division of Cardiology, Department of Internal Medicine
| | - Filippo Toriello
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Division of Cardiology, Department of Internal Medicine
| | - Gloria Santangelo
- San Paolo Hospital, Division of Cardiology, Department of Health Sciences, University of Milan, Milan, Italy
| | - Francesca Bursi
- San Paolo Hospital, Division of Cardiology, Department of Health Sciences, University of Milan, Milan, Italy
| | - Stefano Carugo
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Division of Cardiology, Department of Internal Medicine
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Owen DG, de Oliveira DC, Neale EK, Shepherd DET, Espino DM. Numerical modelling of blood rheology and platelet activation through a stenosed left coronary artery bifurcation. PLoS One 2021; 16:e0259196. [PMID: 34731193 PMCID: PMC8565790 DOI: 10.1371/journal.pone.0259196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 10/14/2021] [Indexed: 01/09/2023] Open
Abstract
Coronary bifurcations are prone to atherosclerotic plaque growth, experiencing regions of reduced wall shear stress (WSS) and increased platelet adhesion. This study compares effects across different rheological approaches on hemodynamics, combined with a shear stress exposure history model of platelets within a stenosed porcine bifurcation. Simulations used both single/multiphase blood models to determine which approach best predicts phenomena associated with atherosclerosis and atherothrombosis. A novel Lagrangian platelet tracking model was used to evaluate residence time and shear history of platelets indicating likely regions of thrombus formation. Results show a decrease in area of regions with pathologically low time-averaged WSS with the use of multiphase models, particularly in a stenotic bifurcation. Significant non-Newtonian effects were observed due to low-shear and varying hematocrit levels found on the outer walls of the bifurcation and distal to the stenosis. Platelet residence time increased 11% in the stenosed artery, with exposure times to low-shear sufficient for red blood cell aggregation (>1.5 s). increasing the risk of thrombosis. This shows stenotic artery hemodynamics are inherently non-Newtonian and multiphase, with variations in hematocrit (0.163-0.617) and elevated vorticity distal to stenosis (+15%) impairing the function of the endothelium via reduced time-averaged WSS regions, rheological properties and platelet activation/adhesion.
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Affiliation(s)
- David G. Owen
- Department of Mechanical Engineering, University of Birmingham, Birmingham, United Kingdom
| | - Diana C. de Oliveira
- Department of Mechanical Engineering, University of Birmingham, Birmingham, United Kingdom
| | - Emma K. Neale
- Department of Mechanical Engineering, University of Birmingham, Birmingham, United Kingdom
| | - Duncan E. T. Shepherd
- Department of Mechanical Engineering, University of Birmingham, Birmingham, United Kingdom
| | - Daniel M. Espino
- Department of Mechanical Engineering, University of Birmingham, Birmingham, United Kingdom
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Böhm F, Mogensen B, Östlund O, Engstrøm T, Fossum E, Stankovic G, Angerås O, Ērglis A, Menon M, Schultz C, Berry C, Liebetrau C, Laine M, Held C, Rück A, James SK. The Full Revasc (Ffr-gUidance for compLete non-cuLprit REVASCularization) Registry-based randomized clinical trial. Am Heart J 2021; 241:92-100. [PMID: 34310907 DOI: 10.1016/j.ahj.2021.07.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 07/19/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Complete revascularization in ST elevation myocardial infarction (STEMI) patients with multivessel disease has resulted in reduction in composite clinical endpoints in medium sized trials. Only one trial showed an effect on hard clinical endpoints, but the revascularization procedure was guided by angiographic evaluation of stenosis severity. Consequently, it is not clear how Fractional Flow Reserve (FFR)-guided percutaneous coronary intervention (PCI) affects hard clinical endpoints in STEMI. METHODS AND RESULTS The Ffr-gUidance for compLete non-cuLprit REVASCularization (FULL REVASC) - is a pragmatic, multicenter, international, registry-based randomized clinical trial designed to evaluate whether a strategy of FFR-guided complete revascularization of non-culprit lesions, reduces the combined primary endpoint of total mortality, non-fatal MI and unplanned revascularization. 1,545 patients were randomized to receive FFR-guided PCI during the index hospitalization or initial conservative management of non-culprit lesions. We found that in angiographically severe non-culprit lesions of 90-99% severity, 1 in 5 of these lesions were re-classified as non-flow limiting by FFR. Considering lesions of intermediate severity (70%-89%), half were re-classified as non-flow limiting by FFR. The study is event driven for an estimated follow-up of at least 2.75 years to detect a 9.9%/year>7.425%/year difference (HR = 0.74 at 80% power (α = .05)) for the combined primary endpoint. CONCLUSION This large randomized clinical trial is designed and powered to evaluate the effect of complete revascularization with FFR-guided PCI during index hospitalization on total mortality, non-fatal MI and unplanned revascularization following primary PCI in STEMI patients with multivessel disease. Enrollment completed in September 2019 and follow-up is ongoing.
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Affiliation(s)
- Felix Böhm
- Department of Cardiology, Karolinska Institute and Karolinska University Hospital, Stockholm, Sweden.
| | - Brynjölfur Mogensen
- Department of Cardiology, Karolinska Institute and Karolinska University Hospital, Stockholm, Sweden
| | - Ollie Östlund
- Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden
| | - Thomas Engstrøm
- Department of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Eigil Fossum
- Department of Cardiology, Oslo University Hospital Ullevål, Oslo, Norway
| | - Goran Stankovic
- University Clinical Center of Serbia, University of Belgrade, Belgrade, Serbia
| | - Oskar Angerås
- Department of Cardiology, Sahlgrenska University Hospital, Göteborg, Sweden
| | - Andrejs Ērglis
- Latvian Centre of Cardiology, Pauls Stradins Clinical University Hospital, University of Latvia, Riga, Latvia
| | - Madhav Menon
- Department of Cardiology, Waikato Hospital, Hamilton, New Zealand
| | - Carl Schultz
- Medical School, University of Western Australia, Perth, Australia; Department of Cardiology, Royal Perth Hospital, Perth, Australia
| | - Colin Berry
- West of Scotland Regional Heart and Lung Centre, Golden Jubilee National Hospital, Glasgow, UK; British Heart Foundation Glasgow Cardiovascular Research Centre, Institute of Cardiovascular & Medical Sciences, University of Glasgow, Glasgow, UK
| | - Christoph Liebetrau
- Department of Cardiology, Kerckhoff Heart and Thorax Center, Bad Nauheim, Germany; Department of Internal Medicine I, Division of Cardiology, University of Giessen, Giessen, Germany
| | - Mika Laine
- Department of Vascular Surgery, Abdominal Center, Helsinki University and Helsinki University Central Hospital, Helsinki, Finland
| | - Claes Held
- Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden; Department of Medical Sciences, Cardiology, Uppsala University, Uppsala, Sweden
| | - Andreas Rück
- Department of Cardiology, Karolinska Institute and Karolinska University Hospital, Stockholm, Sweden
| | - Stefan K James
- Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden; Department of Medical Sciences, Cardiology, Uppsala University, Uppsala, Sweden
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7
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Abstract
Quantification of pressure drop across stenotic arteries is a major element in the functional assessment of occlusive arterial disease. Accurate estimation of the pressure drop with a numerical model allows the calculation of Fractional Flow Reserve (FFR), which is a haemodynamic index employed for guiding coronary revascularisation. Its non-invasive evaluation would contribute to safer and cost-effective diseases management. In this work, we propose a new formulation of a reduced-order model of trans-stenotic pressure drop, based on a consistent theoretical analysis of the Navier-Stokes equation. The new formulation features a novel term that characterises the contribution of turbulence effect to pressure loss. Results from three-dimensional computational fluid dynamics (CFD) showed that the proposed model produces predictions that are significantly more accurate than the existing reduced-order models, for large and small symmetric and eccentric stenoses, covering mild to severe area reductions. FFR calculations based on the proposed model produced zero classification error for three classes comprising positive (≤ 0.75), negative (≥ 0.8) and intermediate (0.75 − 0.8) classes.
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Affiliation(s)
- Konstantinos G. Lyras
- School of Biomedical Engineering & Imaging Sciences, King’s College London, London, United Kingdom
- * E-mail: (KGL); (JL)
| | - Jack Lee
- School of Biomedical Engineering & Imaging Sciences, King’s College London, London, United Kingdom
- * E-mail: (KGL); (JL)
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Esposito A, Francone M, Andreini D, Buffa V, Cademartiri F, Carbone I, Clemente A, Guaricci AI, Guglielmo M, Indolfi C, La Grutta L, Ligabue G, Liguori C, Mercuro G, Mushtaq S, Neglia D, Palmisano A, Sciagrà R, Seitun S, Vignale D, Pontone G, Carrabba N. SIRM-SIC appropriateness criteria for the use of Cardiac Computed Tomography. Part 1: Congenital heart diseases, primary prevention, risk assessment before surgery, suspected CAD in symptomatic patients, plaque and epicardial adipose tissue characterization, and functional assessment of stenosis. Radiol Med 2021; 126:1236-1248. [PMID: 34160775 PMCID: PMC8370938 DOI: 10.1007/s11547-021-01378-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 05/20/2021] [Indexed: 12/23/2022]
Abstract
In the past 20 years, Cardiac Computed Tomography (CCT) has become a pivotal technique for the noninvasive diagnostic work-up of coronary and cardiac diseases. Continuous technical and methodological improvements, combined with fast growing scientific evidence, have progressively expanded the clinical role of CCT. Recent large multicenter randomized clinical trials documented the high prognostic value of CCT and its capability to increase the cost-effectiveness of the management of patients with suspected CAD. In the meantime, CCT, initially perceived as a simple non-invasive technique for studying coronary anatomy, has transformed into a multiparametric "one-stop-shop" approach able to investigate the heart in a comprehensive way, including functional, structural and pathophysiological biomarkers. In this complex and revolutionary scenario, it is urgently needed to provide an updated guide for the appropriate use of CCT in different clinical settings. This manuscript, endorsed by the Italian Society of Medical and Interventional Radiology (SIRM) and by the Italian Society of Cardiology (SIC), represents the first of two consensus documents collecting the expert opinion of Radiologists and Cardiologists about current appropriate use of CCT.
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Affiliation(s)
- Antonio Esposito
- Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS Ospedale San Raffaele, Via Olgettina 60, 20132, Milan, Italy.
- Vita-Salute San Raffaele University, Milan, Italy.
| | - Marco Francone
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Humanitas Research Hospital IRCCS, Rozzano, Milan, Italy
| | - Daniele Andreini
- Centro Cardiologico Monzino IRCCS, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Vitaliano Buffa
- Department of Radiology, Azienda Ospedaliera San Camillo Forlanini, Rome, Italy
| | | | - Iacopo Carbone
- Department of Radiological, Oncological and Pathological Sciences, "Sapienza" University of Rome, Rome, Italy
| | | | - Andrea Igoren Guaricci
- Cardiothoracic Department, University Cardiology Unit, Policlinic University Hospital, Bari, Italy
| | | | - Ciro Indolfi
- Department of Medical and Surgical Sciences, Magna Grecia University, Catanzaro, Italy
| | - Ludovico La Grutta
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties-ProMISE, University of Palermo, AOUP P. Giaccone, Palermo, Italy
| | - Guido Ligabue
- Department of Medical and Surgical Sciences, Modena and Reggio Emilia University, Modena, Italy
- Radiology Department, AOU of Modena, Modena, Italy
| | - Carlo Liguori
- Radiology Unit, Ospedale del Mare- A.S.LNa1-Centro, Naples, Italy
| | - Giuseppe Mercuro
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | | | - Danilo Neglia
- Cardiovascular Department, CNR (National Council of Research)/Tuscany Region 'Gabriele Monasterio' Foundation (FTGM), Pisa, Italy
| | - Anna Palmisano
- Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS Ospedale San Raffaele, Via Olgettina 60, 20132, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Roberto Sciagrà
- Nuclear Medicine Unit, Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Sara Seitun
- Radiology Department, Ospedale Policlinico San Martino, IRCCS Per L'Oncologia E Le Neuroscienze, Genoa, Italy
| | - Davide Vignale
- Clinical and Experimental Radiology Unit, Experimental Imaging Center, IRCCS Ospedale San Raffaele, Via Olgettina 60, 20132, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | | | - Nazario Carrabba
- Cardiothoracovascular Department, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
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Aikawa T, Funayama N, Sunaga D, Kayanuma K, Oyama-Manabe N, Hotta D. Reverse redistribution-like change on dipyridamole-stress 99mTc-tetrofosmin imaging in a patient with angiographically mild coronary artery stenosis. J Nucl Cardiol 2021; 28:1182-1185. [PMID: 33751474 PMCID: PMC8249293 DOI: 10.1007/s12350-021-02553-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 12/08/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Tadao Aikawa
- Department of Cardiology, Hokkaido Cardiovascular Hospital, 1-30, Minami-27, Nishi-13, Chuo-ku, Sapporo, 064-8622, Japan.
- Department of Radiology, Jichi Medical University Saitama Medical Center, 1-847 Amanuma-cho, Omiya-ku, Saitama, 330-8503, Japan.
| | - Naohiro Funayama
- Department of Cardiology, Hokkaido Cardiovascular Hospital, 1-30, Minami-27, Nishi-13, Chuo-ku, Sapporo, 064-8622, Japan
| | - Daisuke Sunaga
- Department of Cardiology, Hokkaido Cardiovascular Hospital, 1-30, Minami-27, Nishi-13, Chuo-ku, Sapporo, 064-8622, Japan
| | - Keigo Kayanuma
- Department of Cardiology, Hokkaido Cardiovascular Hospital, 1-30, Minami-27, Nishi-13, Chuo-ku, Sapporo, 064-8622, Japan
| | - Noriko Oyama-Manabe
- Department of Radiology, Jichi Medical University Saitama Medical Center, 1-847 Amanuma-cho, Omiya-ku, Saitama, 330-8503, Japan
| | - Daisuke Hotta
- Department of Cardiology, Hokkaido Cardiovascular Hospital, 1-30, Minami-27, Nishi-13, Chuo-ku, Sapporo, 064-8622, Japan
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Goto R, Takashima H, Ohashi H, Ando H, Suzuki A, Sakurai S, Nakano Y, Sawada H, Fujimoto M, Suzuki Y, Waseda K, Ohashi W, Amano T. Independent predictors of discordance between the resting full-cycle ratio and fractional flow reserve. Heart Vessels 2021; 36:790-798. [PMID: 33398440 DOI: 10.1007/s00380-020-01763-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/18/2020] [Indexed: 01/19/2023]
Abstract
The resting full-cycle ratio (RFR), a novel resting index, is well correlated with and shows good diagnostic accuracy to the fractional flow reserve (FFR). However, discordance results between the RFR and FFR have been observed to occur in about 20% of cases. This study aimed to clarify the prevalence and factors of discordant results between the RFR and FFR through a direct comparison of these values in daily clinical practice. A total of 220 intermediate coronary lesions of 156 consecutive patients with RFR and FFR measurements were allocated to four groups according to RFR and FFR cutoff values. We compared the angiographic, clinical, and hemodynamic variables among the groups. Discordant results between the RFR and FFR were observed in 19.6% of vessels, and the proportion of discordant results was significantly higher in the left main trunk and left anterior descending artery (LM + LAD) than in non-LAD vessels (25.2% vs. 12.3%, p = 0.006). In the multivariable regression analysis, LM + LAD location, hemodialysis, and peripheral artery disease were associated with a low RFR among patients with a high FFR. Conversely, the absence of diabetes mellitus and the presence of higher hemoglobin levels were associated with a higher RFR among patients with a low FFR. Specific angiographic and clinical characteristics such as LM + LAD location, hemodialysis, peripheral artery disease, and absence of diabetes mellitus and anemia can be independent predictors of physiologic discordance between the RFR and FFR.
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Affiliation(s)
- Reiji Goto
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Hiroaki Takashima
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan.
| | - Hirofumi Ohashi
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Hirohiko Ando
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Akihiro Suzuki
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Shinichiro Sakurai
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Yusuke Nakano
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Hiroaki Sawada
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Masanobu Fujimoto
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Yasushi Suzuki
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Katsuhisa Waseda
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
- Medical Education Center, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, Japan
| | - Wataru Ohashi
- Division of Biostatistics, Clinical Research Center, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, Japan
| | - Tetsuya Amano
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
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11
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Ekström K, Nielsen JVW, Nepper-Christensen L, Ahtarovski KA, Kyhl K, Göransson C, Bertelsen L, Ghotbi AA, Kelbæk H, Høfsten DE, Køber L, Schoos MM, Vejlstrup N, Lønborg J, Engstrøm T. Ischemia From Nonculprit Stenoses Is Not Associated With Reduced Culprit Infarct Size in Patients with ST-Segment-Elevation Myocardial Infarction. Circ Cardiovasc Imaging 2021; 14:e012290. [PMID: 33951923 DOI: 10.1161/circimaging.120.012290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND In patients with ST-segment-elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention, reperfusion injury accounts for a significant fraction of the final infarct size, which is directly related to patient prognosis. In animal studies, brief periods of ischemia in noninfarct-related (nonculprit) coronary arteries protect the culprit myocardium via remote ischemic preconditioning. Positive fractional flow reserve (FFR) documents functional significant coronary nonculprit stenosis, which may offer remote ischemic preconditioning of the culprit myocardium. The aim of the study was to investigate the association between functional significant, multivessel disease (MVD) and reduced culprit final infarct size or increased myocardial salvage (myocardial salvage index [MSI]) in a large contemporary cohort of STEMI patients. METHODS Cardiac magnetic resonance was performed in 610 patients with STEMI at day 1 and 3 months after primary percutaneous coronary intervention. Patients were stratified into 3 groups according to FFR measurements in nonculprit stenosis (if any): angiographic single vessel disease (SVD), FFR nonsignificant MVD (functional SVD), or FFR-significant, functional MVD. RESULTS A total of 431 (71%) patients had SVD, 35 (6%) had functional SVD, and 144 (23%) had functional MVD. There was no difference in final infarct size (mean infarct size [%left ventricular mass] SVD, 9±3%; functional SVD, 9±3%; and functional MVD, 9±3% [P=0.82]) or in MSI between groups (mean MSI [%left] SVD, 66±23%; functional SVD, 68±19%; and functional MVD, 69±19% [P=0.62]). In multivariable analyses, functional MVD was not associated with larger MSI (P=0.56) or smaller infarct size (P=0.55). CONCLUSIONS Functional MVD in nonculprit myocardium was not associated with reduced culprit final infarct size or increased MSI following STEMI. This is important knowledge for future studies examining a cardioprotective treatment in patients with STEMI, as a possible confounding effect of FFR-significant, functional MVD can be discarded. Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT01435408 (DANAMI 3-iPOST and DANAMI 3-DEFER) and NCT01960933 (DANAMI 3-PRIMULTI).
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Affiliation(s)
- Kathrine Ekström
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Julie V W Nielsen
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Lars Nepper-Christensen
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Kiril A Ahtarovski
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Kasper Kyhl
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Christoffer Göransson
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Litten Bertelsen
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Adam A Ghotbi
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Henning Kelbæk
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark (H.K.)
| | - Dan E Høfsten
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Lars Køber
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Mikkel M Schoos
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Niels Vejlstrup
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Jacob Lønborg
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
| | - Thomas Engstrøm
- Department of Cardiology, The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark (K.E., J.V.W.N., L.N.-C., K.A.A., K.K., C.G., L.B., A.A.G., D.E.H., L.K., M.M.S., N.V., J.L., T.E.)
- Department of Cardiology, Lund University Hospital, Sweden (T.E.)
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12
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Stanescu AG, Benedek I, Opincariu D, Hodas R, Ratiu M, Benedek T. Assessment of lesion-associated myocardial ischemia based on fusion coronary CT imaging - the FUSE-HEART study: A protocol for non-randomized clinical trial. Medicine (Baltimore) 2021; 100:e25378. [PMID: 33832124 PMCID: PMC8036075 DOI: 10.1097/md.0000000000025378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 03/12/2021] [Indexed: 01/05/2023] Open
Abstract
INTRODUCTION Multimodality assessment of coronary artery lesions has demonstrated superior effectiveness compared to the conventional approach, for assessing both anatomical and functional significance of a coronary stenosis. Multiple imaging modalities can be integrated into a fusion imaging tool to better assess myocardial ischemia. MATERIAL AND METHODS The FUSE-HEART trial is a single center, prospective, cohort study that will assess the impact of a coronary artery stenosis on myocardial function and viability, based on advanced fusion imaging technics derived from Cardiac Computed Tomography Angiography (CCTA). Moreover, the study will investigate the correlation between morphology and composition of the coronary plaques and myocardial ischemia in the territory irrigated by the same coronary artery. At the same time, imaging parameters will be correlated with inflammatory status of the subjects. The trial will include 100 subjects with coronary lesions found on CCTA examination. The study population will be divided into 2 groups: first group will consist of subjects with anatomically significant coronary lesions on native coronary arteries and the second one will include subjects surviving an acute myocardial infarction. The vulnerability score of the subjects will be calculated based on presence of CCTA vulnerability markers of the coronary plaques: napkin ring sign, positive remodeling, spotty calcifications, necrotic core, and low-density plaques. 3D fusion images of the coronary tree will be generated, integrating the images reflecting wall motion with the ones of coronary circulation. The fusion models will establish the correspondence between plaque composition and wall motion in the subtended myocardium of the coronary artery. The study primary outcome will be represented by the rate of major adverse cardiac events related to myocardial ischemia at 1-year post assessment, in correlation with the degree of coronary artery stenosis and myocardial ischemia or viability.The secondary outcomes are represented by the rate of re-hospitalization, rate of survival and rate of major adverse cardiovascular events (including cardiovascular death or stroke), in correlation with the morphology and composition of atheromatous plaques located in a coronary artery, and myocardial ischemia in the territory irrigated by the same coronary artery. CONCLUSION In conclusion, FUSE-HEART will be a study based on modern imaging tools that will investigate the impact of a coronary artery stenosis on myocardial function and viability, using advanced fusion imaging technics derived from CCTA, sighting to validate plaque composition and morphology, together with inflammatory biomarkers, as predictors to myocardial viability.
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Affiliation(s)
- Alexandra Gorea Stanescu
- Department of Cardiology, University of Medicine, Pharmacy, Sciences and Technology of Targu Mures
- Department of Advanced Research in Multimodality Cardiovascular Imaging, Cardio Med Medical Center, Targu Mures
| | - Imre Benedek
- Department of Cardiology, University of Medicine, Pharmacy, Sciences and Technology of Targu Mures
- Department of Advanced Research in Multimodality Cardiovascular Imaging, Cardio Med Medical Center, Targu Mures
| | - Diana Opincariu
- Department of Advanced Research in Multimodality Cardiovascular Imaging, Cardio Med Medical Center, Targu Mures
| | - Roxana Hodas
- Department of Advanced Research in Multimodality Cardiovascular Imaging, Cardio Med Medical Center, Targu Mures
| | - Mihaela Ratiu
- Department of Advanced Research in Multimodality Cardiovascular Imaging, Cardio Med Medical Center, Targu Mures
- Department of Radiology, University of Medicine, Pharmacy, Sciences and Technology of Targu Mures, Romania
| | - Theodora Benedek
- Department of Cardiology, University of Medicine, Pharmacy, Sciences and Technology of Targu Mures
- Department of Advanced Research in Multimodality Cardiovascular Imaging, Cardio Med Medical Center, Targu Mures
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13
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Peper J, van Hamersvelt RW, Rensing BJWM, van Kuijk JP, Voskuil M, Berg JMT, Schaap J, Kelder JC, Grobbee DE, Leiner T, Swaans MJ. Diagnostic performance and clinical implications for enhancing a hybrid quantitative flow ratio-FFR revascularization decision-making strategy. Sci Rep 2021; 11:6425. [PMID: 33742077 PMCID: PMC7979768 DOI: 10.1038/s41598-021-85933-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 01/18/2021] [Indexed: 11/24/2022] Open
Abstract
Invasive fractional flow reserve (FFR) adoption remains low mainly due to procedural and operator related factors as well as costs. Alternatively, quantitative flow ratio (QFR) achieves a high accuracy mainly outside the intermediate zone without the need for hyperaemia and wire-use. We aimed to determine the diagnostic performance of QFR and to evaluate a QFR-FFR hybrid strategy in which FFR is measured only in the intermediate zone. This retrospective study included 289 consecutive patients who underwent invasive coronary angiography and FFR. QFR was calculated for all vessels in which FFR was measured. The QFR-FFR hybrid approach was modelled using the intermediate zone of 0.77-0.87 in which FFR-measurements are recommended. The sensitivity, specificity, and accuracy on a per vessel-based analysis were 84.6%, 86.3% and 85.6% for QFR and 88.0%, 92.9% and 90.3% for the QFR-FFR hybrid approach. The diagnostic accuracy of QFR-FFR hybrid strategy with invasive FFR measurement was 93.4% and resulted in a 56.7% reduction in the need for FFR. QFR has a good correlation and agreement with invasive FFR. A hybrid QFR-FFR approach could extend the use of QFR and reduces the proportion of invasive FFR-measurements needed while improving accuracy.
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Affiliation(s)
- Joyce Peper
- Department of Cardiology, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands.
- Department of Radiology, University Medical Centre Utrecht, Utrecht, The Netherlands.
| | | | - Benno J W M Rensing
- Department of Cardiology, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands
| | - Jan-Peter van Kuijk
- Department of Cardiology, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands
| | - Michiel Voskuil
- Department of Cardiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Jurriën M Ten Berg
- Department of Cardiology, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands
| | - Jeroen Schaap
- Department of Cardiology, Amphia Hospital, Breda, The Netherlands
| | - Johannes C Kelder
- Department of Cardiology, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands
| | - Diederick E Grobbee
- Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Tim Leiner
- Department of Radiology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Martin J Swaans
- Department of Cardiology, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands
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14
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Cui N, Sakurai T, Kamiyoshi A, Ichikawa-Shindo Y, Kawate H, Tanaka M, Tanaka M, Wei Y, Kakihara S, Zhao Y, Aruga K, Kawagishi H, Nakada T, Yamada M, Shindo T. Adrenomedullin-RAMP2 and -RAMP3 Systems Regulate Cardiac Homeostasis during Cardiovascular Stress. Endocrinology 2021; 162:6129198. [PMID: 33545715 DOI: 10.1210/endocr/bqab001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Indexed: 12/26/2022]
Abstract
Adrenomedullin (AM) is a peptide hormone with multiple physiological functions, which are regulated by its receptor activity-modifying proteins, RAMP2 and RAMP3. We previously reported that AM or RAMP2 knockout (KO) (AM-/-, RAMP2-/-) is embryonically lethal in mice, whereas RAMP3-/- mice are apparently normal. AM, RAMP2, and RAMP3 are all highly expressed in the heart; however, their functions there are not fully understood. Here, we analyzed the pathophysiological functions of the AM-RAMP2 and AM-RAMP3 systems in hearts subjected to cardiovascular stress. Cardiomyocyte-specific RAMP2-/- (C-RAMP2-/-) and RAMP3-/- showed no apparent heart failure at base line. After 1 week of transverse aortic constriction (TAC), however, C-RAMP2-/- exhibited significant cardiac hypertrophy, decreased ejection fraction, and increased fibrosis compared with wild-type mice. Both dP/dtmax and dP/dtmin were significantly reduced in C-RAMP2-/-, indicating reduced ventricular contractility and relaxation. Exposing C-RAMP2-/- cardiomyocytes to isoproterenol enhanced their hypertrophy and oxidative stress compared with wild-type cells. C-RAMP2-/- cardiomyocytes also contained fewer viable mitochondria and showed reduced mitochondrial membrane potential and respiratory capacity. RAMP3-/- also showed reduced systolic function and enhanced fibrosis after TAC, but those only became apparent after 4 weeks. A reduction in cardiac lymphatic vessels was the characteristic feature in RAMP3-/-. These observations indicate the AM-RAMP2 system is necessary for early adaptation to cardiovascular stress through regulation of cardiac mitochondria. AM-RAMP3 is necessary for later adaptation through regulation of lymphatic vessels. The AM-RAMP2 and AM-RAMP3 systems thus play separate critical roles in the maintenance of cardiovascular homeostasis against cardiovascular stress.
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Affiliation(s)
- Nanqi Cui
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takayuki Sakurai
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
- Department of Life Innovation, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Matsumoto, Japan
| | - Akiko Kamiyoshi
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
- Department of Life Innovation, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Matsumoto, Japan
| | - Yuka Ichikawa-Shindo
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Hisaka Kawate
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Megumu Tanaka
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Masaaki Tanaka
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yangxuan Wei
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Shinji Kakihara
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yunlu Zhao
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kohsuke Aruga
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Hiroyuki Kawagishi
- Department of Molecular Pharmacology, Shinshu University School of Medicine, Matsumoto, Japan
- Department of Biotechnology, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Matsumoto, Japan
| | - Tsutomu Nakada
- Department of Instrumental Analysis, Research Center for Supports to Advanced Science, Shinshu University, Matsumoto, Japan
| | - Mitsuhiko Yamada
- Department of Molecular Pharmacology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Takayuki Shindo
- Department of Cardiovascular Research, Shinshu University School of Medicine, Matsumoto, Japan
- Department of Life Innovation, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Matsumoto, Japan
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15
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Weng Y, Liu Y, Deng Y, Lu S, Zhu Y. Rapidly and Accurately Detecting Significant Coronary Artery Stenosis in Patients with Suspected Stable Coronary Artery Disease and Normal Segmental Wall Motion by Speckle Tracking Automated Functional Imaging. Ultrasound Med Biol 2021; 47:546-555. [PMID: 33261910 DOI: 10.1016/j.ultrasmedbio.2020.10.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 10/26/2020] [Accepted: 10/30/2020] [Indexed: 06/12/2023]
Abstract
This study was performed to explore the value of a machine with built-in speckle tracking automated functional imaging (AFI) in predicting the severity of coronary artery lesions in patients with suspected stable coronary artery disease (SCAD) with normal wall motion. One hundred forty-three consecutive patients with clinically suspected SCAD with normal wall motion were included. Multiple parameters, including global longitudinal peak strain, post-systolic index (PSI) and peak strain dispersion, were automatically analyzed with AFI. Territorial longitudinal strain (TLS) and territorial PSI (TPSI) were also calculated. Receiver operating characteristic curve analyses revealed that global longitudinal peak strain and PSI were superior to other parameters in detecting left main or three-vessel SCAD. A combination of TLS and TPSI could improve diagnostic performance in identifying significant stenotic left anterior descending and right coronary arteries. In conclusion, 2-dimensional speckle tracking AFI can rapidly provide multiple parameters for detecting significant coronary artery stenosis with high accuracy in patients suspected of having SCAD with normal wall motion.
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Affiliation(s)
- Yahui Weng
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yani Liu
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Youbin Deng
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shirui Lu
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Zhu
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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16
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Wang RR, Tian T, Li SQ, Leng XP, Tian JW. Assessment of Left Ventricular Global Myocardial Work in Patients With Different Degrees of Coronary Artery Stenosis by Pressure-Strain Loops Analysis. Ultrasound Med Biol 2021; 47:33-42. [PMID: 33109380 DOI: 10.1016/j.ultrasmedbio.2020.09.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 09/17/2020] [Accepted: 09/22/2020] [Indexed: 06/11/2023]
Abstract
Global myocardial work (MW) analysis by pressure-strain loops (PSL) allows the non-invasive assessment of left ventricular (LV) function. We aimed to investigate the relationship between LV global MW and the degree of coronary artery stenosis in suspected coronary artery disease (CAD) patients with normal LV ejection fraction and regional wall motion. A total of 164 suspected CAD patients were divided into four groups according to coronary artery angiography. The results showed that global work efficiency (GWE) as the most significant predictor in all MW parameters had the optimal cut-off value of 94.5% for detecting moderate stenosis, and the sensitivity and specificity was 89.7% and 85.8%, respectively. A cut-off value of 94.0% for GWE was the most significant predictor of severe stenosis, and the sensitivity and specificity was 81.4% and 76.1%, respectively. In conclusion, LV global MW is a sensitive tool in detecting the degree of coronary artery stenosis and a potential valuable method to provide early diagnosis for CAD patients.
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Affiliation(s)
- Ran-Ran Wang
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Tian Tian
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shou-Qiang Li
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiao-Ping Leng
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, China.
| | - Jia-Wei Tian
- Department of Ultrasound, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
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Karády J, Mayrhofer T, Ivanov A, Foldyna B, Lu MT, Ferencik M, Pursnani A, Salerno M, Udelson JE, Mark DB, Douglas PS, Hoffmann U. Cost-effectiveness Analysis of Anatomic vs Functional Index Testing in Patients With Low-Risk Stable Chest Pain. JAMA Netw Open 2020; 3:e2028312. [PMID: 33315111 PMCID: PMC7737090 DOI: 10.1001/jamanetworkopen.2020.28312] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
IMPORTANCE Both noninvasive anatomic and functional testing strategies are now routinely used as initial workup in patients with low-risk stable chest pain (SCP). OBJECTIVE To determine whether anatomic approaches (ie, coronary computed tomography angiography [CTA] and coronary CTA supplemented with noninvasive fractional flow reserve [FFRCT], performed in patients with 30% to 69% stenosis) are cost-effective compared with functional testing for the assessment of low-risk SCP. DESIGN, SETTING, AND PARTICIPANTS This cost-effectiveness analysis used an individual-based Markov microsimulation model for low-risk SCP. The model was developed using patient data from the Prospective Multicenter Imaging Study for Evaluation of Chest Pain (PROMISE) trial. The model was validated by comparing model outcomes with outcomes observed in the PROMISE trial for anatomic (coronary CTA) and functional (stress testing) strategies, including diagnostic test results, referral to invasive coronary angiography (ICA), coronary revascularization, incident major adverse cardiovascular event (MACE), and costs during 60 days and 2 years. The validated model was used to determine whether anatomic approaches are cost-effective over a lifetime compared with functional testing. EXPOSURE Choice of index test for evaluation of low-risk SCP. MAIN OUTCOMES AND MEASURES Downstream ICA and coronary revascularization, MACE (death, nonfatal myocardial infarction), cost, quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratio (ICER) of competing strategies. RESULTS The model cohort included 10 003 individual patients (median [interquartile range] age, 60.0 [54.4-65.9] years; 5270 [52.7%] women; 7693 [77.4%] White individuals), who entered the model 100 times. The Markov model accurately estimated the test assignment, results of anatomic and functional index testing, referral to ICA, revascularization, MACE, and costs at 60 days and 2 years compared with observed data in PROMISE (eg, coronary CTA: ICA, 12.2% [95% CI, 10.9%-13.5%] vs 12.3% [95% CI, 12.2%-12.4%]; revascularization, 6.2% [95% CI, 5.5%-6.9%] vs 6.4% [95% CI, 6.3%-6.5%]; functional strategy: ICA, 8.1% [95% CI, 7.4%-8.9%] vs 8.2% [95% CI, 8.1%-8.3%]; revascularization, 3.2% [95% CI, 2.7%-3.7%] vs 3.3% [95% CI, 3.2%-3.4%]; 2-year MACE rates: coronary CTA, 2.1% [95% CI, 1.7%-2.5%] vs 2.3% [95% CI, 2.2%-2.4%]; functional strategy, 2.2% [95% CI, 1.8%-2.6%] vs 2.4% [95% CI, 2.3%-2.4%]). Anatomic approaches led to higher ICA and revascularization rates at 60 days, 2 years, and 5 years compared with functional testing but were more effective in patient selection for ICA (eg, 60-day revascularization-to-ICA ratio, CTA: 53.7% [95% CI, 53.3%-54.0%]; CTA with FFRCT: 59.5% [95% CI, 59.2%-59.8%]; functional testing: 40.7% [95% CI, 40.4%-50.0%]). Over a lifetime, anatomic approaches gained an additional 6 months in perfect health compared with functional testing (CTA, 25.16 [95% CI, 25.14-25.19] QALYs; CTA with FFRCT, 25.14 [95% CI, 25.12-25.17] QALYs; functional testing, 24.68 [95% CI, 24.66-24.70] QALYs). Anatomic strategies were less costly and more effective; thus, CTA with FFRCT dominated and CTA alone was cost-effective (ICERs ranged from $1912/QALY for women and $3,559/QALY for men) compared with functional testing. In probabilistic sensitivity analyses, anatomic approaches were cost-effective in more than 65% of scenarios, assuming a willingness-to-pay threshold of $100 000/QALY. CONCLUSIONS AND RELEVANCE The results of this study suggest that anatomic strategies may present a more favorable initial diagnostic option in the evaluation of low-risk SCP compared with functional testing.
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Affiliation(s)
- Júlia Karády
- Cardiovascular Imaging Research Center, Massachusetts General Hospital, Harvard Medical School, Boston
- MTA-SE Cardiovascular Imaging Research Group, Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Thomas Mayrhofer
- Cardiovascular Imaging Research Center, Massachusetts General Hospital, Harvard Medical School, Boston
- School of Business Studies, Stralsund University of Applied Sciences, Stralsund, Germany
| | - Alexander Ivanov
- Cardiovascular Imaging Research Center, Massachusetts General Hospital, Harvard Medical School, Boston
| | - Borek Foldyna
- Cardiovascular Imaging Research Center, Massachusetts General Hospital, Harvard Medical School, Boston
| | - Michael T. Lu
- Cardiovascular Imaging Research Center, Massachusetts General Hospital, Harvard Medical School, Boston
| | - Maros Ferencik
- Cardiovascular Imaging Research Center, Massachusetts General Hospital, Harvard Medical School, Boston
- Knight Cardiovascular Institute, Oregon Health and Science University, Portland
| | - Amit Pursnani
- Cardiology Division, Evanston Hospital, Evanston, Illinois
| | - Michael Salerno
- Departments of Medicine and Radiology, University of Virginia Health System, Charlottesville
| | - James E. Udelson
- Division of Cardiology, Tufts Medical Center, Boston, Massachusetts
| | - Daniel B. Mark
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, North Carolina
- Division of Cardiology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Pamela S. Douglas
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, North Carolina
- Division of Cardiology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Udo Hoffmann
- Cardiovascular Imaging Research Center, Massachusetts General Hospital, Harvard Medical School, Boston
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Cho SG, Lee SJ, Na MH, Choi YY, Bom HHS. Comparison of diagnostic accuracy of PET-derived myocardial blood flow parameters: A meta-analysis. J Nucl Cardiol 2020; 27:1955-1966. [PMID: 30390243 DOI: 10.1007/s12350-018-01476-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 09/24/2018] [Indexed: 11/25/2022]
Abstract
BACKGROUND Although absolute quantification of myocardial blood flow (MBF) by positron emission tomography provides additive diagnostic value to visual analysis of perfusion defect, diagnostic accuracy of different MBF parameters remain unclear. METHODS Clinical studies regarding the diagnostic accuracy of hyperemic MBF (hMBF), myocardial flow reserve (MFR) and/or relative flow reserve (RFR) were searched and systematically reviewed. On a per-vessel basis, pooled measures of the parameters' diagnostic performances were analyzed, regarding significant coronary stenosis defined by fractional flow reserve or diameter stenosis. RESULTS Ten studies (2,522 arteries from 1,099 patients) were finally included. Pooled sensitivity [95% confidence interval (CI)] was 0.853 (0.821-0.881) for hMBF, 0.755 (0.713-0.794) for MFR, and 0.636 (0.539-0.726) for RFR. Pooled specificity (95% CI) was 0.844 (0.827-0.860) for hMBF, 0.804 (0.784-0.824) for MFR, and 0.897 (0.860-0.926) for RFR. Pooled area under the curve ± standard error was 0.900 ± 0.020 for hMBF, 0.830 ± 0.026 for MFR, and 0.873 ± 0.048 for RFR. CONCLUSIONS hMBF showed the best sensitivity while RFR showed the best specificity in the diagnosis of significant coronary stenosis. MFR was less sensitive than hMBF and less specific than hMBF and RFR.
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Affiliation(s)
- Sang-Geon Cho
- Department of Nuclear Medicine, Chonnam National University Hospital, 42, Jebong-ro, Dong-gu, Gwangju, 61469, Republic of Korea.
| | - Soo Jin Lee
- Department of Nuclear Medicine, Hanyang University Medical Center, 222-1, Wangsimni-ro Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Myung Hwan Na
- Department of Statistics, Chonnam National University, 45, Yongbong-ro, Buk-gu, Kwangju, 61186, Republic of Korea
| | - Yun Young Choi
- Department of Nuclear Medicine, Hanyang University Medical Center, 222-1, Wangsimni-ro Seongdong-gu, Seoul, 04763, Republic of Korea.
| | - Henry Hee-Seung Bom
- Department of Nuclear Medicine, Chonnam National University Hwasun Hospital, 322, Seoyang-ro Hwasun-eup, Hwasun-gun, Jeonnam, 58128, Republic of Korea.
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Akil S, Hedeer F, Carlsson M, Arheden H, Oddstig J, Hindorf C, Jögi J, Erlinge D, Engblom H. Qualitative assessments of myocardial ischemia by cardiac MRI and coronary stenosis by invasive coronary angiography in relation to quantitative perfusion by positron emission tomography in patients with known or suspected stable coronary artery disease. J Nucl Cardiol 2020; 27:2351-2359. [PMID: 30535919 PMCID: PMC7749089 DOI: 10.1007/s12350-018-01555-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 11/26/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND To relate findings of qualitative evaluation of first-pass perfusion-CMR and anatomical evaluation on coronary angiography (CA) to the reference standard of quantitative perfusion, cardiac PET, in patients with suspected or known stable coronary artery disease (CAD). METHODS AND RESULTS Forty-one patients referred for CA due to suspected stable CAD, prospectively performed adenosine stress/rest first-pass perfusion-CMR as well as 13N-NH3 PET on the same day, 4 ± 3 weeks before CA. Angiographers were blinded to PET and CMR results. Regional myocardial flow reserve (MFR) < 2.0 on PET was considered pathological. Vessel territories with stress-induced ischemia by CMR or vessels with stenosis needing revascularization had a significantly lower MFR compared to those with no regional stress-induced ischemia or vessels not needing revascularization (P < 0.001). In 4 of 123 vessel territories with stress-induced ischemia by CMR, PET showed a normal MFR. In addition, 12 of 123 vessels that underwent intervention showed normal MFR assessed by PET. CONCLUSION The limited performance of qualitative assessment of presence of stable CAD with CMR and CA, when related to quantitative 13N-NH3 cardiac PET, shows the need for fully quantitative assessment of myocardial perfusion and the use of invasive flow reserve measurements for CA, to confirm the need of elective revascularization.
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Affiliation(s)
- Shahnaz Akil
- Department of Clinical Sciences Lund, Clinical Physiology, Skane University Hospital, Lund University, 22185 Lund, Sweden
- Department of Radiological Sciences, College of Health and Rehabilitation Sciences, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Fredrik Hedeer
- Department of Clinical Sciences Lund, Clinical Physiology, Skane University Hospital, Lund University, 22185 Lund, Sweden
| | - Marcus Carlsson
- Department of Clinical Sciences Lund, Clinical Physiology, Skane University Hospital, Lund University, 22185 Lund, Sweden
| | - Håkan Arheden
- Department of Clinical Sciences Lund, Clinical Physiology, Skane University Hospital, Lund University, 22185 Lund, Sweden
| | - Jenny Oddstig
- Radiation Physics, Skåne University Hospital, Lund, Sweden
| | | | - Jonas Jögi
- Department of Clinical Sciences Lund, Clinical Physiology, Skane University Hospital, Lund University, 22185 Lund, Sweden
| | - David Erlinge
- Department of Clinical Sciences Lund, Department of Cardiology, Skane University Hospital, Lund University, Lund, Sweden
| | - Henrik Engblom
- Department of Clinical Sciences Lund, Clinical Physiology, Skane University Hospital, Lund University, 22185 Lund, Sweden
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Colbert CM, Shao J, Hollowed JJ, Currier JW, Ajijola OA, Fishbein GA, Duarte-Vogel SM, Dharmakumar R, Hu P, Nguyen KL. 3D-Printed Coronary Implants Are Effective for Percutaneous Creation of Swine Models with Focal Coronary Stenosis. J Cardiovasc Transl Res 2020; 13:1033-1043. [PMID: 32394352 PMCID: PMC9667863 DOI: 10.1007/s12265-020-10018-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 04/28/2020] [Indexed: 01/17/2023]
Abstract
Reliable, closed-chest methods for creating large animal models of acute myocardial hypoperfusion are limited. We demonstrated the feasibility and efficacy of using magnetic resonance (MR)-compatible 3D-printed coronary implants for establishing swine models of myocardial hypoperfusion. We designed, manufactured, and percutaneously deployed implants in 13 swine to selectively create focal coronary stenosis. To test the efficacy of the implants to cause hypoperfusion or ischemia in the perfused territory, we evaluated regional wall motion, myocardial perfusion, and infarction using MR imaging. The overall swine survival rate was 85% (11 of 13). The implant retrieval rate was 92% (12 of 13). Fluoroscopic angiography confirmed focal stenosis. Cine and perfusion MRI showed regional wall motion abnormalities and inducible ischemia, respectively. Late gadolinium enhancement and histopathology showed no myocardial infarction. Our minimally invasive technique has promising applications for validation of new diagnostic methods in cardiac MR. Graphical abstract Our new minimally invasive, percutaneous method for creating swine models of acute focal coronary stenosis can be used for magnetic resonance imaging studies of myocardial ischemia. Comparable to existing methods in its efficacy and reliability, this rapid prototyping technique will allow researchers to more easily conduct translational cardiac imaging studies of coronary artery disease in large animal models.
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Affiliation(s)
- Caroline M Colbert
- Physics and Biology in Medicine Graduate Program, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Jiaxin Shao
- Diagnostic Cardiovascular Imaging Laboratory, Department of Radiological Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - John J Hollowed
- Division of Cardiology, David Geffen School of Medicine at UCLA and VA Greater Los Angeles Healthcare System, 11301 Wilshire Blvd, MC 111E, Los Angeles, CA, 90073, USA
| | - Jesse W Currier
- Division of Cardiology, David Geffen School of Medicine at UCLA and VA Greater Los Angeles Healthcare System, 11301 Wilshire Blvd, MC 111E, Los Angeles, CA, 90073, USA
| | - Olujimi A Ajijola
- UCLA Cardiac Arrhythmia Center and Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Gregory A Fishbein
- Department of Pathology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Sandra M Duarte-Vogel
- Division of Laboratory Animal Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Rohan Dharmakumar
- Biomedical Imaging Research Institute, Department of Biomedical Sciences, Cedars-Sinai Medical Center and Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Peng Hu
- Physics and Biology in Medicine Graduate Program, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Diagnostic Cardiovascular Imaging Laboratory, Department of Radiological Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Kim-Lien Nguyen
- Physics and Biology in Medicine Graduate Program, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
- Diagnostic Cardiovascular Imaging Laboratory, Department of Radiological Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
- Division of Cardiology, David Geffen School of Medicine at UCLA and VA Greater Los Angeles Healthcare System, 11301 Wilshire Blvd, MC 111E, Los Angeles, CA, 90073, USA.
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Hwang HY, Paeng JC, Kang J, Jang MJ, Kim KB. Relation between functional coronary artery stenosis and graft occlusion after coronary artery bypass grafting. J Thorac Cardiovasc Surg 2020; 161:1010-1018.e1. [PMID: 33431208 DOI: 10.1016/j.jtcvs.2020.11.072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 10/31/2020] [Accepted: 11/17/2020] [Indexed: 01/16/2023]
Abstract
OBJECTIVES This study was conducted to evaluate graft patency rates during the 5 years after coronary artery bypass grafting according to the functional significance of the coronary artery stenosis, as determined by myocardial single-photon-emission computed tomography. METHODS Two hundred ninety-five patients who underwent coronary artery bypass grafting using Y-composite grafts based on the in situ left internal thoracic artery, and in whom preoperative stress/rest myocardial single-photon-emission computed tomography and 1-year angiographies were available were enrolled. Seven hundred sixty-nine and 262 distal anastomoses were constructed to ischemic and nonischemic areas, respectively. One-year and 5-year angiographic occlusion rates were evaluated in all and 80.3% of study patients, respectively. Factors associated with graft occlusion were evaluated using generalized linear mixed-effects models. RESULTS Overall 1- and 5-year graft occlusion rates were 4.3% (44 of 1031 distal anastomoses) and 5.5% (45 out of 820), respectively. The occlusion rates of grafts bypassed to vessels with functionally significant and insignificant stenosis were 2.7% (21 out of 769) and 8.8% (23 out of 262) at 1 year and were 4.0% (25 out of 618) and 9.9% (20 out of 202) at 5 years, respectively. Graft occlusion during the 5 years after coronary artery bypass grafting was associated with the functional significance of coronary artery stenosis (odds ratio, 0.50; 95% confidence interval, 0.28-0.92). The odds ratio of the graft occlusion according to functional ischemia was lower and significant in grafts to arteries with intermediate stenosis (stenosis ≥70% but <90%; odds ratio, 0.34; 95% confidence interval, 0.13-0.93) whereas it was higher and insignificant in grafts to arteries with severe stenosis (≥90% stenosis; odds ratio, 0.76; 95% confidence interval, 0.33-1.72). CONCLUSIONS Graft occlusion during the 5 years after coronary artery bypass grafting was associated with the functional significance of coronary artery stenosis, particularly when the stenosis degree was not severe.
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Affiliation(s)
- Ho Young Hwang
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jin Chul Paeng
- Department of Nuclear Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jeehoon Kang
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Myoung-Jin Jang
- Medical Research Collaborating Center, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ki-Bong Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.
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Yalcin G, Ozsoy E, Karabag T. The relationship of body composition indices with the significance, extension and severity of coronary artery disease. Nutr Metab Cardiovasc Dis 2020; 30:2279-2285. [PMID: 32928627 DOI: 10.1016/j.numecd.2020.07.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 07/07/2020] [Accepted: 07/13/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND AND AIMS It is still unclear which anthropometric parameter is most associated with significant coronary artery disease (CAD). We examined the relationship of the prevalence and severity of coronary artery disease with body composition indices. METHODS AND RESULTS Patients aged 18-80 years who were admitted to the cardiology outpatient clinic with any complaints, and were indicated for coronary angiography as a result of the examinations, were included in this study and divided into two groups. Group 1 had significant stenosis (161 patients, 104 males, mean age: 64.1 ± 10.5 years), while Group 2 had non-significant stenosis (75 patients, 48 males, mean age: 58.9 ± 11.8 years). Significant stenosis was defined as narrowing of 50% or more of the arterial lumens in any vessel or its lateral branch. Height, weight, waist and hip circumferences and body composition indices of all patients were measured. The SYNTAX and Gensini scores were calculated for all patients undergoing angiography. Group 1 had significantly higher waist circumferences (WC), body roundness indices (BRI), body fat percentages, and waist/height ratios than Group 2. In the correlation analysis, WC, BRI, waist/hip ratio and waist/height ratio were significantly correlated with the Gensini score. WC, hip circumference, BRI, body fat percentage and waist/height ratio were significantly correlated with the SYNTAX score. In the multivariate regression analysis, BRI was the parameter best related to significant CAD. CONCLUSION BRI, body fat percentage, waist circumference and waist/height ratio were higher in patients with significant stenosis. BRI was the parameter most closely related to the Gensini and SYNTAX scores and to significant CAD.
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Affiliation(s)
- Gunisil Yalcin
- Istanbul Education and Research Hospital, Department of Internal Medicine, Istanbul, Turkey
| | - Enes Ozsoy
- Istanbul Education and Research Hospital, Department of Internal Medicine, Istanbul, Turkey
| | - Turgut Karabag
- Istanbul Education and Research Hospital, Department of Cardiology, Istanbul, Turkey.
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Chen X, Wang G, Zhao L, Zhao J, Liu T, Zhao G, Han W. The value of coronary computed tomography angiography in assessing the cardiac circulation of an outpatient-based population. Medicine (Baltimore) 2020; 99:e23148. [PMID: 33181686 PMCID: PMC7668512 DOI: 10.1097/md.0000000000023148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
To evaluate the perfusion of coronary circulation and its related factors and the difference in the peak filling times in aortic sinus and coronary sinus by coronary computed tomography angiography (CCTA).From January 1 to August 1, 2018, 61 outpatients with angina pectoris were recruited, completed a questionnaire about risk factors and underwent CCTA, which was also used to assess the stenosis of different coronary artery segments.The duration of circulation was 9.50 ± 2.43 seconds in patients with flat T wave, which was shorter than the duration in normal subjects (P = .021). However, other cardiovascular risk factors showed no effect on the duration of circulation. In addition, the duration of circulation was closely related to the peak filling time of coronary sinus [r(s) = 0.681]. We further divided the circulation time difference (delta) values into 3 levels (<6, 6-12, and ≥12 seconds).It showed that the circulation duration (Y) was associated with:Therefore, the cardiac circulation duration was negatively related to the degree of stenosis in the 1 diagonal and proximal LCA.It compensates for the inability of CCTA to assess circulation at rest simply by determining the peak filling time in the aortic sinus and the coronary sinus. Moderate cardiac microcirculation duration was related to a low incidence of clinical symptoms and electrocardiogram disorders, which was determined mainly by the diagonal and left circumflex branch 1 of LCA.
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Doenst T, Sigusch H. Surgical collateralization: The hidden mechanism for improving prognosis in chronic coronary syndromes. J Thorac Cardiovasc Surg 2020; 163:703-708.e2. [PMID: 33323199 DOI: 10.1016/j.jtcvs.2020.10.121] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/02/2020] [Accepted: 10/07/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Torsten Doenst
- Department of Cardiothoracic Surgery, Jena University Hospital, Friedrich Schiller University of Jena, Jena, Germany.
| | - Holger Sigusch
- Department of Cardiology, Heinrich-Braun Klinikum, Zwickau, Germany
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Takahashi N, Gall E, Fan D, Majid M, Amsterdam EA. ST Elevation During Recovery Phase of Exercise Test. Am J Med 2020; 133:1287-1290. [PMID: 32277888 DOI: 10.1016/j.amjmed.2020.03.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/09/2020] [Accepted: 03/09/2020] [Indexed: 11/16/2022]
Affiliation(s)
| | - Elizabeth Gall
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, Davis Medical Center, Sacramento
| | - Dali Fan
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, Davis Medical Center, Sacramento
| | - Muhammad Majid
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, Davis Medical Center, Sacramento
| | - Ezra A Amsterdam
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, Davis Medical Center, Sacramento.
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Rezaeimoghaddam M, Oguz GN, Ates MS, Bozkaya TA, Piskin S, Samaneh Lashkarinia S, Tenekecioglu E, Karagoz H, Pekkan K. Patient-Specific Hemodynamics of New Coronary Artery Bypass Configurations. Cardiovasc Eng Technol 2020; 11:663-678. [PMID: 33051831 DOI: 10.1007/s13239-020-00493-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 10/01/2020] [Indexed: 11/25/2022]
Abstract
PURPOSE This study aims to quantify the patient-specific hemodynamics of complex conduit routing configurations of coronary artery bypass grafting (CABG) operation which are specifically suitable for off-pump surgeries. Coronary perfusion efficacy and local hemodynamics of multiple left internal mammary artery (LIMA) with sequential and end-to-side anastomosis are investigated. Using a full anatomical model comprised of aortic arch and coronary artery branches the optimum perfusion configuration in multi-vessel coronary artery stenosis is desired. METHODOLOGY Two clinically relevant CABG configurations are created using a virtual surgical planning tool where for each configuration set, the stenosis level, anastomosis distance and angle were varied. A non-Newtonian computational fluid dynamics solver in OpenFOAM incorporated with resistance boundary conditions representing the coronary perfusion physiology was developed. The numerical accuracy is verified and results agreed well with a validated commercial cardiovascular flow solver and experiments. For segmental performance analysis, new coronary perfusion indices to quantify deviation from the healthy scenario were introduced. RESULTS The first simulation configuration set;-a CABG targeting two stenos sites on the left anterior descending artery (LAD), the LIMA graft was capable of 31 mL/min blood supply for all the parametric cases and uphold the healthy LAD perfusion in agreement with the clinical experience. In the second end-to-side anastomosed graft configuration set;-the radial artery graft anastomosed to LIMA, a maximum of 64 mL/min flow rate in LIMA was observed. However, except LAD, the obtuse marginal (OM) and second marginal artery (m2) suffered poor perfusion. In the first set, average wall shear stress (WSS) were in the range of 4 to 35 dyns/cm2 for in LAD. Nevertheless, for second configuration sets the WSS values were higher as the LIMA could not supply enough blood to OM and m2. CONCLUSION The virtual surgical configurations have the potential to improve the quality of operation by providing quantitative surgical insight. The degree of stenosis is a critical factor in terms of coronary perfusion and WSS. The sequential anastomosis can be done safely if the anastomosis angle is less than 90 degrees regardless of degree of stenosis. The smaller proposed perfusion index value, O(0.04 - 0) × 102, enable us to quantify the post-op hemodynamic performance by comparing with the ideal healthy physiological flow.
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Affiliation(s)
- Mohammad Rezaeimoghaddam
- Department of Mechanical Engineering, Koc University, Rumeli Feneri Campus, Sariyer, Istanbul, Turkey
| | - Gokce Nur Oguz
- Department of Mechanical Engineering, Koc University, Rumeli Feneri Campus, Sariyer, Istanbul, Turkey
| | - Mehmet Sanser Ates
- Department of Cardiovascular Surgery, Koc University Hospital, Topkapi, Istanbul, Turkey
| | - Tijen Alkan Bozkaya
- Department of Cardiovascular Surgery, Koc University Hospital, Topkapi, Istanbul, Turkey
| | - Senol Piskin
- Department of Mechanical Engineering, Istinye University, Zeytinburnu, Istanbul, Turkey
| | - S Samaneh Lashkarinia
- Department of Mechanical Engineering, Koc University, Rumeli Feneri Campus, Sariyer, Istanbul, Turkey
| | - Erhan Tenekecioglu
- Department of Cardiology, Health Sciences University, Bursa Education and Research Hospital, Bursa, Turkey
| | - Haldun Karagoz
- Department of Cardiovascular Surgery, VKV American Hospital, Istanbul, Turkey
| | - Kerem Pekkan
- Department of Mechanical Engineering, Koc University, Rumeli Feneri Campus, Sariyer, Istanbul, Turkey.
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Kim CH, Koo BK, Dehbi HM, Lee JM, Doh JH, Nam CW, Shin ES, Cook CM, Al-Lamee R, Petraco R, Sen S, Malik IS, Nijjer SS, Mejía-Rentería H, Alegria-Barrero E, Alghamdi A, Altman J, Baptista SB, Bhindi R, Bojara W, Brugaletta S, Silva PC, Di Mario C, Erglis A, Gerber RT, Going O, Härle T, Hellig F, Indolfi C, Janssens L, Jeremias A, Kharbanda RK, Khashaba A, Kikuta Y, Krackhardt F, Laine M, Lehman SJ, Matsuo H, Meuwissen M, Niccoli G, Piek JJ, Ribichini F, Samady H, Sapontis J, Seto AH, Sezer M, Sharp ASP, Singh J, Takashima H, Talwar S, Tanaka N, Tang K, Van Belle E, van Royen N, Vinhas H, Vrints CJ, Walters D, Yokoi H, Samuels B, Buller C, Patel MR, Serruys PW, Escaned J, Davies JE. Sex Differences in Instantaneous Wave-Free Ratio or Fractional Flow Reserve-Guided Revascularization Strategy. JACC Cardiovasc Interv 2020; 12:2035-2046. [PMID: 31648764 DOI: 10.1016/j.jcin.2019.06.035] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/04/2019] [Accepted: 06/11/2019] [Indexed: 01/10/2023]
Abstract
OBJECTIVES This study sought to evaluate sex differences in procedural characteristics and clinical outcomes of instantaneous wave-free ratio (iFR)- and fractional flow reserve (FFR)-guided revascularization strategies. BACKGROUND An iFR-guided strategy has shown a lower revascularization rate than an FFR-guided strategy, without differences in clinical outcomes. METHODS This is a post hoc analysis of the DEFINE-FLAIR (Functional Lesion Assessment of Intermediate stenosis to guide Revascularization) study, in which 601 women and 1,891 men were randomized to iFR- or FFR-guided strategy. The primary endpoint was 1-year major adverse cardiac events (MACE), a composite of all-cause death, nonfatal myocardial infarction, or unplanned revascularization. RESULTS Among the entire population, women had a lower number of functionally significant lesions per patient (0.31 ± 0.51 vs. 0.43 ± 0.59; p < 0.001) and less frequently underwent revascularization than men (42.1% vs. 53.1%; p < 0.001). There was no difference in mean iFR value according to sex (0.91 ± 0.09 vs. 0.91 ± 0.10; p = 0.442). However, the mean FFR value was lower in men than in women (0.83 ± 0.09 vs. 0.85 ± 0.10; p = 0.001). In men, an FFR-guided strategy was associated with a higher rate of revascularization than an iFR-guided strategy (57.1% vs. 49.3%; p = 0.001), but this difference was not observed in women (41.4% vs. 42.6%; p = 0.757). There was no difference in MACE rates between iFR- and FFR-guided strategies in both women (5.4% vs. 5.6%, adjusted hazard ratio: 1.10; 95% confidence interval: 0.50 to 2.43; p = 0.805) and men (6.6% vs. 7.0%, adjusted hazard ratio: 0.98; 95% confidence interval: 0.66 to 1.46; p = 0.919). CONCLUSIONS An FFR-guided strategy was associated with a higher rate of revascularization than iFR-guided strategy in men, but not in women. However, iFR- and FFR-guided strategies showed comparable clinical outcomes, regardless of sex. (Functional Lesion Assessment of Intermediate Stenosis to guide Revascularization [DEFINE-FLAIR]; NCT02053038).
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Affiliation(s)
- Chee Hae Kim
- Division of Cardiology, Department of Internal Medicine, VHS Medical Center, Seoul, South Korea
| | - Bon-Kwon Koo
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul National University, Seoul, South Korea; Institute on Aging, Seoul National University, Seoul, South Korea.
| | - Hakim-Moulay Dehbi
- Cancer Research UK and University College London Cancer Trials Centre, University College London, London, United Kingdom
| | - Joo Myung Lee
- Division of Cardiology, Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Joon-Hyung Doh
- Department of Medicine, Inje University Ilsan Paik Hospital, Daehwa-dong, South Korea
| | - Chang-Wook Nam
- Department of Medicine, Keimyung University Dongsan Medical Center, Daegu, South Korea
| | - Eun-Seok Shin
- Division of Cardiology, Department of Internal Medicine, Ulsan Medical Center, Ulsan Hospital, Ulsan, South Korea
| | | | - Rasha Al-Lamee
- Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Ricardo Petraco
- Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Sayan Sen
- Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Iqbal S Malik
- Hammersmith Hospital, Imperial College London, London, United Kingdom
| | | | - Hernán Mejía-Rentería
- Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | | | - Ali Alghamdi
- King Abdulaziz Medical City Cardiac Center, Riyadh, Saudi Arabia
| | - John Altman
- Colorado Heart and Vascular, Lakewood, Colorado
| | | | | | - Waldemar Bojara
- Gemeinschaftsklinikum Mittelrhein, Kemperhof Koblenz, Koblenz, Germany
| | - Salvatore Brugaletta
- Cardiovascular Institute, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | | | - Carlo Di Mario
- Royal Brompton Hospital, Imperial College London, London, United Kingdom; University of Florence, Florence, Italy
| | - Andrejs Erglis
- Pauls Stradins Clinical University Hospital, Riga, Latvia
| | | | - Olaf Going
- Sana Klinikum Lichtenberg, Lichtenberg, Germany
| | - Tobias Härle
- Klinikum Oldenburg, European Medical School, Carl von Ossietzky University, Oldenburg, Germany
| | | | | | | | - Allen Jeremias
- Stony Brook University Medical Center, New York, New York
| | - Rajesh K Kharbanda
- John Radcliffe Hospital, Oxford University Hospitals Foundation Trust, Oxford, United Kingdom
| | | | | | | | - Mika Laine
- Helsinki University Hospital, Helsinki, Finland
| | | | | | | | | | - Jan J Piek
- AMC Heart Center, Academic Medical Center, Amsterdam, the Netherlands
| | | | | | | | - Arnold H Seto
- Veterans Affairs Long Beach Healthcare System, Long Beach, California
| | - Murat Sezer
- Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Andrew S P Sharp
- Royal Devon and Exeter Hospital, University of Exeter, Exeter, United Kingdom
| | - Jasvindar Singh
- Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | | | - Suneel Talwar
- Royal Bournemouth General Hospital, Bournemouth, United Kingdom
| | | | - Kare Tang
- Essex Cardiothoracic Centre, Basildon, United Kingdom; Anglia Ruskin University, Chelmsford, United Kingdom
| | - Eric Van Belle
- Institut Coeur Poumon, Lille University Hospital, Lille, France; UMR INSERM 1011, Centre Hospitalier Universitaire de Lille et de Institut Pasteur de Lille, Université de Lille, Lille, France
| | | | | | | | | | | | - Bruce Samuels
- Cedars-Sinai Heart Institute, Los Angeles, California
| | | | | | - Patrick W Serruys
- Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Javier Escaned
- Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Justin E Davies
- Hammersmith Hospital, Imperial College London, London, United Kingdom
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Hatoum H, Maureira P, Lilly S, Dasi LP. Impact of Leaflet Laceration on Transcatheter Aortic Valve-in-Valve Washout: BASILICA to Solve Neosinus and Sinus Stasis. JACC Cardiovasc Interv 2020; 12:1229-1237. [PMID: 31272669 DOI: 10.1016/j.jcin.2019.04.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 03/26/2019] [Accepted: 04/09/2019] [Indexed: 11/17/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate any potential leaflet washout benefits after bioprosthetic or native aortic scallop intentional laceration to prevent iatrogenic coronary artery obstruction during TAVR (BASILICA) in transcatheter valve-in-valve (ViV) in the context of leaflet thrombosis. BACKGROUND Leaflet thrombosis after transcatheter aortic valve replacement is secondary to flow stasis in both the sinus and neosinus. Strategies to improve washout and ameliorate neosinus and sinus flow velocities may have the potential to mitigate the occurrence of clinical and subclinical leaflet thrombosis. METHODS A 23-mm Edwards SAPIEN 3 and a 26-mm Medtronic Evolut were deployed in a 23-mm transparent surgical aortic valve model before and after leaflet laceration. The valves were placed in the aortic position of a pulse duplicator flow loop. Particle image velocimetry was performed to quantify sinus flow hemodynamic status. A tracing fluorescent dye was injected to evaluate the number of cycles to washout in both regions of interest. RESULTS The leaflet laceration procedure led to an increase in the velocities in the sinus and the neosinus by 50% for Evolut ViV and 61.9% for SAPIEN 3 ViV. In addition, leaflet laceration led to a reduction in overall cycles to washout in the neosinus by at least 56% with the Evolut and 54.5% with the SAPIEN 3 and in the sinus by at least 16.7% with the Evolut and 60.8% with the SAPIEN. CONCLUSIONS Leaflet laceration using a BASILICA-type approach may hold the potential to mitigate neosinus and sinus flow stasis. Controlled in vivo trials are necessary to establish the potential benefit of BASILICA to reduce the occurrence of leaflet thrombosis.
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Affiliation(s)
- Hoda Hatoum
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio
| | - Pablo Maureira
- Department of Cardiovascular Surgery, CHU de Nancy, Nancy, France
| | - Scott Lilly
- Division of Cardiovascular Medicine, The Ohio State University, Columbus, Ohio
| | - Lakshmi Prasad Dasi
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio.
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Onishi K, Watanabe H, Kakehi K, Ikeda T, Takase T, Yamaji K, Ueno M, Kobuke K, Nakazawa G, Miyazaki S, Iwanaga Y. Determinants and prognostic implications of instantaneous wave-free ratio in patients with mild to intermediate coronary stenosis: Comparison with those of fractional flow reserve. PLoS One 2020; 15:e0237275. [PMID: 32760123 PMCID: PMC7410195 DOI: 10.1371/journal.pone.0237275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/22/2020] [Indexed: 01/10/2023] Open
Abstract
The instantaneous wave-free ratio (iFR) is used for assessing the hemodynamic severity of a lesion, as an alternative to the fractional flow reserve (FFR). We evaluated the relationship between iFR and FFR in detail and the clinical significance of iFR in patients with mild to intermediate coronary artery stenosis. We recruited consecutive 323 patients (421 lesions) with lesions exhibiting 30% to 80% diameter stenosis on angiography in whom FFR and iFR were measured. In the total lesions, mean diameter stenosis was 48.6% ± 9.0%, and physiological significance, defined by FFR of 0.80 or less or by iFR of 0.92 or less, was observed in 32.5% or 33.5%, respectively. Mismatch between iFR and FFR was observed in 18.1% of the lesions. Clinical factors did not predict FFR value; however, gender, diabetes mellitus, aortic stenosis, anemia, high-sensitivity CRP value, and renal function predicted iFR value. In multivariate logistic analysis after adjustment for FFR value, gender (p < 0.001), diabetes mellitus (p = 0.005), aortic stenosis (p = 0.016), high-sensitivity CRP (p < 0.001), and renal function (p = 0.003) were all independent predictors of iFR value. In Kaplan-Meier analysis, the baseline iFR predicted the subsequent major cardiovascular events (MACE) (hazard ratio, 2.40; 95% CI, 1.16–4.93; p = 0.018) and the results of the iFR-guided strategy for predicting rates of MACE and myocardial infarction/revascularization were superior to those of the FFR-guided strategy. In conclusion, significant clinical factors predicted iFR value, which affected the prognostic capacity. The iFR-guided strategy may be superior in patients with mild to intermediate stenosis.
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Affiliation(s)
- Kyohei Onishi
- Division of Cardiology, Department of Internal Medicine, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Heitaro Watanabe
- Division of Cardiology, Department of Internal Medicine, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Kazuyoshi Kakehi
- Division of Cardiology, Department of Internal Medicine, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Tomoyuki Ikeda
- Division of Cardiology, Department of Internal Medicine, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Toru Takase
- Division of Cardiology, Department of Internal Medicine, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Kenji Yamaji
- Division of Cardiology, Department of Internal Medicine, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Masafumi Ueno
- Division of Cardiology, Department of Internal Medicine, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Kazuhiro Kobuke
- Division of Cardiology, Department of Internal Medicine, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Gaku Nakazawa
- Division of Cardiology, Department of Internal Medicine, Kindai University Faculty of Medicine, Osakasayama, Japan
| | | | - Yoshitaka Iwanaga
- Division of Cardiology, Department of Internal Medicine, Kindai University Faculty of Medicine, Osakasayama, Japan
- * E-mail:
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30
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Feuchtner GM, Langer C, Senoner T, Barbieri F, Beyer C, Bonaros N, Schachner T, Friedrich G, Baldauf B, Taylor CA, Klauser A, Rauch S, Leipsic J, Dichtl W, Widmann G, De Cecco CN, Plank F. Differences in coronary vasodilatory capacity and atherosclerosis in endurance athletes using coronary CTA and computational fluid dynamics (CFD): Comparison with a sedentary lifestyle. Eur J Radiol 2020; 130:109168. [PMID: 32739779 DOI: 10.1016/j.ejrad.2020.109168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/04/2020] [Accepted: 07/05/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND The aim was to assess the effect of endurance exercise on coronary vasodilatory capacity and atherosclerosis by coronary computed tomography angiography (CTA) and computational fluid dynamic (CFD) modelling. METHODS 100 subjects (age 56.2y±11, 29 females) who underwent coronary CTA were included into this retrospectively matched cohort study. Endurance athletes (≥1 h per unit and ≥3 times per week training) were compared to controls with a sedentary lifestyle, and within subgroups with and without sublingual nitroglycerin preparation. CTA image analysis included coronary stenosis severity (CADRADS), total (segment involvement score = SIS) and mixed plaque burden (G-score), high-risk plaque criteria, the coronary artery calcium score (CACS) and CFD analysis including Fractional Flow Reserve (FFRCT), myocardial mass (M), total vessel lumen volume (V) and volume-to-mass (V/M) ratio. RESULTS The prevalence of atherosclerosis by CTA was 65.4 % and >50 % coronary stenosis was found in 17.3 % of athletes. Coronary stenosis severity (CADRADS), total and mixed non-calcified plaque burden (SIS and G-score) were lower in athletes (p = 0.003 and p < 0.001) but not CACS (p = 0.055) and less high-risk plaques were found (p < 0.001). The G-score was correlated with distal FFRCT (p = 0.025). V/M-ratio was different between athletes who received nitroglycerin compared with those who did not (V/M: 21.1 vs. 14.8; p < 0.001), but these differences were not observed in the control subjects. CONCLUSION Endurance training improves coronary vasodilatory capacity and reduces high-risk plaque and mixed non-calcifed plaque burden as assessed by coronary CTA angiography. Our study may advocate coronary CTA with FFRCT for evaluation of coronary artery disease in endurance athletes.
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Affiliation(s)
| | | | - Thomas Senoner
- Department of Internal Medicine III- Cardiology, Innsbruck Medical University, Austria
| | - Fabian Barbieri
- Department of Internal Medicine III- Cardiology, Innsbruck Medical University, Austria
| | - Christoph Beyer
- Department of Radiology, Innsbruck Medical University, Austria
| | - Nikolaos Bonaros
- Department of Cardiac Surgery, Innsbruck Medical University, Austria
| | - Thomas Schachner
- Department of Cardiac Surgery, Innsbruck Medical University, Austria
| | - Guy Friedrich
- Department of Internal Medicine III- Cardiology, Innsbruck Medical University, Austria
| | - Benito Baldauf
- ISAG- Institute for Sport and Alpin- and Healthmedicine, Innsbruck, Austria
| | - Charles A Taylor
- Stanford University, Dept. Bioengineering, Palo Alto, San Francisco, USA
| | - Andrea Klauser
- Department of Radiology, Innsbruck Medical University, Austria
| | - Stefan Rauch
- Department of Radiology, Innsbruck Medical University, Austria
| | - Jonathon Leipsic
- University of British Columbia, Vancouver, Dept. Radiology BC Canada
| | - Wolfgang Dichtl
- Department of Internal Medicine III- Cardiology, Innsbruck Medical University, Austria
| | - Gerlig Widmann
- Department of Radiology, Innsbruck Medical University, Austria
| | | | - Fabian Plank
- Department of Internal Medicine III- Cardiology, Innsbruck Medical University, Austria
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31
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Yokota S, Borren NM, Ottervanger JP, Mouden M, Timmer JR, Knollema S, Jager PL. Does fractional flow reserve overestimate severity of LAD lesions? J Nucl Cardiol 2020; 27:1306-1313. [PMID: 31044405 DOI: 10.1007/s12350-019-01712-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 03/26/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Fractional Flow Reserve (FFR) is increasingly used to estimate the severity of coronary stenoses, prior to coronary revascularization. However, it has been suggested that FFR overestimates the severity of Left Anterior Descending (LAD) lesions. Our aim was to verify whether in patients without ischemia on Myocardial Perfusion Imaging, FFR of the LAD is more often abnormal in comparison to FFR of other coronary arteries. METHODS Prospective cohort study of consecutive patients who underwent FFR measurement because of persistent or worsening of angina complaints, within 6 months after normal Myocardial Perfusion Imaging. FFR measurements of a graft or diagonal branch were excluded. A FFR ≤ 0.80 denoted a functionally relevant stenosis. RESULTS In 133 patients, 167 FFR measurements were performed, of which 85 in the LAD. Mean age of the patients was 64.8 ± 10.5 years, 40% were women. There were no differences in baseline characteristics between patients undergoing LAD and non-LAD measurements. An abnormal FFR was observed in 35.3% of the LAD measurements, compared to 9.8% in the non-LAD measurements (P = 0.001). Also after adjusting for age and gender, the FFR remained more frequently abnormal in the LAD with OR 5.2 (95% CI 2.2 to 12.3). Of the abnormal FFR LAD measurements, 70% were visually considered non-obstructive on invasive angiography. CONCLUSIONS In selected patients without ischemia on MPI, FFR measurement of the LAD is significantly more often abnormal. The majority of these patients has no obstructive lesions on invasive angiography. Possibly, FFR overestimates severity of LAD lesions, with risk of unnecessary revascularization.
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Affiliation(s)
- Shu Yokota
- Department of Cardiology, Isala Hospital, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands
| | - Nanette M Borren
- Department of Cardiology, Isala Hospital, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands
- Department of Nuclear Medicine, Isala Hospital, Zwolle, The Netherlands
| | - Jan Paul Ottervanger
- Department of Cardiology, Isala Hospital, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands.
| | - Mohamed Mouden
- Department of Cardiology, Isala Hospital, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands
| | - Jorik R Timmer
- Department of Cardiology, Isala Hospital, Dr. Van Heesweg 2, 8025 AB, Zwolle, The Netherlands
| | - Siert Knollema
- Department of Nuclear Medicine, Isala Hospital, Zwolle, The Netherlands
| | - Pieter L Jager
- Department of Nuclear Medicine, Isala Hospital, Zwolle, The Netherlands
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Abstract
Coronary artery stenosis is a narrowing of coronary lumen space caused by an atherosclerotic lesion. Fractional flow reserve (FFR) is the gold standard metric to assess physiological significance of coronary stenosis, but requires an invasive procedure. Computational modeling in conjunction with patient-specific imaging demonstrates formation of regions of recirculatory flow distal to a stenosis, increasing mean blood residence time relative to uninhibited flow. A new computational parameter, mean blood residence time (BloodRT), was computed for 100 coronary artery segments for which FFR was known. A threshold for BloodRT was determined to assess the physiological significance of a stenosis, analogous to diagnostic threshold for FFR. Model sensitivity and specificity of BloodRT for diagnosis of hemodynamically significant coronary stenosis was 98% and 96% respectively, compared with FFR. When applied to clinical practice, this could potentially allow practicing cardiologists to accurately assess the severity of coronary stenosis without resorting to invasive techniques.
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Affiliation(s)
- Javad Hashemi
- Department of Chemical Engineering, University of Louisville, Louisville, KY, USA
| | - Shesh Rai
- Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, KY, USA
| | - Shahab Ghafghazi
- Department of Medicine, University of Louisville, Louisville, KY, USA.
| | - R Eric Berson
- Department of Chemical Engineering, University of Louisville, Louisville, KY, USA.
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Kim CH, Koo B, Lee JM, Shin E, Park J, Choi KH, Hwang D, Rhee T, Zhang J, Choi Y, Lee S, Choi J, Doh J, Nam C, Wang J, Chen S, Kuramitsu S, Tanaka N, Matsuo H, Akasaka T. Influence of Sex on Relationship Between Total Anatomical and Physiologic Disease Burdens and Their Prognostic Implications in Patients With Coronary Artery Disease. J Am Heart Assoc 2020; 8:e011002. [PMID: 30813812 PMCID: PMC6474930 DOI: 10.1161/jaha.118.011002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Background Total atherosclerosis disease burden is associated with clinical outcomes in patients with coronary artery disease. However, the influence of sex on the relationship between total anatomical and physiologic disease burdens and their prognostic implications have not been well defined. Methods and Results A total of 1136 patients who underwent fractional flow reserve (FFR) measurement in all 3 major coronary arteries were included in this study. Anatomical and physiologic total disease burden was assessed by SYNTAX (Synergy Between Percutaneous Coronary Intervention With Taxus and Cardiac Surgery) score, residual SYNTAX score, a total sum of FFR in 3 vessels (3-vessel FFR), and functional SYNTAX score. The primary end point was major adverse cardiac events, a composite of cardiac death, myocardial infarction, and ischemia-driven revascularization at 2 years. There were no differences in angiographic diameter stenosis, SYNTAX score, or residual SYNTAX score between women and men. However, both per-vessel FFR (0.89±0.10 versus 0.87±0.11, P<0.001) and 3-vessel FFR (2.72±0.13 versus 2.69±0.15, P<0.001) were higher in women. Multivariable Cox regression analyses showed that total anatomical and physiologic disease burdens were significantly associated with 2-year major adverse cardiac events, and there was no significant interaction between sex and total disease burden for clinical outcomes. Conclusions Despite similar angiographic disease severity, both per-vessel and per-patient physiologic disease severity was less in women than in men. There was no influence of sex on prognostic implications of total anatomical and physiologic disease burdens in patients with coronary artery disease. Clinical Trial Registration URL: https://www.clinicaltrials.gov . Unique identifier: NCT01621438.
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Affiliation(s)
- Chee Hae Kim
- Division of CardiologyDepartment of Internal MedicineVHS Medical CenterSeoulKorea
| | - Bon‐Kwon Koo
- Division of CardiologyDepartment of Internal MedicineSeoul National University HospitalSeoulKorea
- Institute on AgingSeoul National UniversitySeoulKorea
| | - Joo Myung Lee
- Division of CardiologyDepartment of Internal MedicineHeart Vascular Stroke InstituteSamsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea
| | - Eun‐Seok Shin
- Department of CardiologyUlsan University HospitalUniversity of Ulsan College of MedicineUlsanKorea
- Division of CardiologyUlsan HospitalUlsanKorea
| | - Jonghanne Park
- Division of CardiologyDepartment of Internal MedicineSeoul National University HospitalSeoulKorea
| | - Ki Hong Choi
- Division of CardiologyDepartment of Internal MedicineHeart Vascular Stroke InstituteSamsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea
| | - Doyeon Hwang
- Division of CardiologyDepartment of Internal MedicineSeoul National University HospitalSeoulKorea
| | - Tae‐Min Rhee
- Division of CardiologyDepartment of Internal MedicineSeoul National University HospitalSeoulKorea
| | - Jinlong Zhang
- Division of CardiologyDepartment of Internal MedicineSeoul National University HospitalSeoulKorea
| | - You‐Jung Choi
- Division of CardiologyDepartment of Internal MedicineSeoul National University HospitalSeoulKorea
| | - Seo‐Young Lee
- Division of CardiologyDepartment of Internal MedicineSeoul National University HospitalSeoulKorea
| | - Jin‐Ho Choi
- Division of CardiologyDepartment of Internal MedicineHeart Vascular Stroke InstituteSamsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea
- Department of Emergency MedicineSamsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea
| | - Joon‐Hyung Doh
- Department of MedicineInje University Ilsan Paik HospitalGoyangKorea
| | - Chang‐Wook Nam
- Department of MedicineKeimyung University Dongsan Medical CenterDaeguKorea
| | - Jianan Wang
- Department of CardiologyThe Second Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouChina
| | - Shaoliang Chen
- Department of CardiologyNanjing First HospitalNanjing Medical UniversityNanjingChina
| | | | | | | | - Takashi Akasaka
- Department of CardiologyWakayama Medical UniversityWakayamaJapan
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Nakayama M, Uchiyama T, Hijikata N, Kobori Y, Tanaka N, Iwasaki K. Effect of QTU prolongation on hyperemic instantaneous wave-free ratio value: a prospective single-center study. Heart Vessels 2020; 35:909-917. [PMID: 31989184 PMCID: PMC7256076 DOI: 10.1007/s00380-020-01562-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 01/17/2020] [Indexed: 12/16/2022]
Abstract
We hypothesized that in patients with QT prolongation, resistance might not decrease in the wave-free period, because QTU prolongation cannot be detected by instantaneous wave-free ratio (iFR) analysis software. We investigated whether corrected QTU (QTUc) prolongation affects the hyperemic iFR value. Forty-two consecutive patients with intermediate stenosis (≥ 50%) in the left anterior descending coronary artery (LAD) were analyzed. Fractional flow reserve (FFR) and hyperemic iFR were simultaneously and continuously recorded with intravenous adenosine triphosphate (ATP) and papaverine infusions. In 17 patients with stenosis in the proximal LAD, coronary flow was measured. Patients were divided into two groups according to the median absolute deviation of the QTUc by ATP administration/QTUc by papaverine administration. FFR, hyperemic iFR, and flow data were compared between each stimulus and group. Moreover, influences of pressure and electrocardiogram parameters on differences in iFR values under ATP and papaverine administration were compared between the following two groups (group 1: the absolute difference of hyperemic iFR values between ATP and papaverine administration is ≤ 0.05; group 2: that is > 0.05). The paired t test and t test were used in analysis. Hyperemic iFR values of patients under the use of papaverine were lower than those of patients under the use of ATP when QTUc was more prolonged by papaverine administration than by ATP administration (ATP 0.74 ± 0.14, papaverine 0.71 ± 0.15, P = 0.025). No significant differences were observed in the FFR value and flow data between the groups. Regarding QTU, QTUc, and QTUc by ATP/QTUc by papaverine, significant differences were observed between group 1 and group 2. Pressure parameters did not induce significant differences. QTUc prolongation induced by papaverine was associated with lower hyperemic iFR values. An iFR-based assessment might lead to inappropriate treatment of patients with QTUc prolongation.
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Affiliation(s)
- Masafumi Nakayama
- Cardiovascular Center, Todachuo General Hospital, Toda, Japan
- Cooperative Major in Advanced Biomedical Sciences, Joint Graduate School of Tokyo Women's Medical University and Waseda University, Waseda University, 2-2 Wakamatsucho, Shinjuku, Tokyo, 162-8480, Japan
| | | | | | - Yuichi Kobori
- Cardiovascular Center, Todachuo General Hospital, Toda, Japan
| | - Nobuhiro Tanaka
- Department of Cardiology, Tokyo Medical University Hachiouji Medical Center, Hachiouji, Japan
| | - Kiyotaka Iwasaki
- Cooperative Major in Advanced Biomedical Sciences, Joint Graduate School of Tokyo Women's Medical University and Waseda University, Waseda University, 2-2 Wakamatsucho, Shinjuku, Tokyo, 162-8480, Japan.
- Department of Modern Mechanical Engineering, Waseda University, Shinjuku, Tokyo, Japan.
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Ohashi H, Takashima H, Ando H, Suzuki A, Sakurai S, Nakano Y, Sawada H, Fujimoto M, Suzuki W, Shimoda M, Tajima A, Waseda K, Ohashi W, Amano T. Clinical feasibility of resting full-cycle ratio as a unique non-hyperemic index of invasive functional lesion assessment. Heart Vessels 2020; 35:1518-1526. [PMID: 32506183 DOI: 10.1007/s00380-020-01638-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/29/2020] [Indexed: 01/10/2023]
Abstract
The resting full-cycle ratio (RFR) is a new physiologic index to assess myocardial ischemia. RFR and fractional flow reserve (FFR), the conventionally used index, have not been directly compared in evaluating the entire cardiac cycle. Accordingly, we aimed to compare the diagnostic performance of RFR directly with FFR and clarify the clinical feasibility of RFR as a unique non-hyperemic index in evaluating the cardiac cycle. The diagnostic performance of RFR was compared with FFR using an automated online calculation software. A total of 156 consecutive patients with 220 intermediate lesions were enrolled. RFR showed significant correlation with FFR (r = 0.774, p < 0.001). RFR systole and RFR diastole did also with FFR (r = 0.918, p < 0.001, and r = 0.733, p < 0.001, respectively). With FFR < 0.80 as a reference standard, RFR showed good diagnostic accuracy (DA: 80.5%), similar DA between RFR systole and RFR diastole (79.6% and 87.5%, p = 0.58, respectively), and good DA in any lesion locations, especially in non-left anterior descending coronary artery (LAD) lesions (73.7% and 87.6% for LAD vs. non-LAD, p < 0.05, respectively). RFR is a feasible and reliable non-hyperemic index regardless of the difference in cardiac cycle in evaluating physiological lesion severity in daily practice.
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Affiliation(s)
- Hirofumi Ohashi
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Hiroaki Takashima
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan.
| | - Hirohiko Ando
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Akihiro Suzuki
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Shinichiro Sakurai
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Yusuke Nakano
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Hiroaki Sawada
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Masanobu Fujimoto
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Wataru Suzuki
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Masahiro Shimoda
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Atomu Tajima
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
| | - Katsuhisa Waseda
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
- Medical Education Center, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, Japan
| | - Wataru Ohashi
- Division of Biostatistics, Clinical Research Center, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, Japan
| | - Tetsuya Amano
- Department of Cardiology, Aichi Medical University, 1-1 Yazakokarimata, Nagakute, Aichi, 480-1195, Japan
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AlBadri A, Piccinelli M, Cho SG, Lee JM, Jaber W, De Cecco CN, Samady H, Koo BK, Bom HS, Garcia EV. Rationale and design of the quantification of myocardial blood flow using dynamic PET/CTA-fused imagery (DEMYSTIFY) to determine physiological significance of specific coronary lesions. J Nucl Cardiol 2020; 27:1030-1039. [PMID: 32026327 PMCID: PMC7332386 DOI: 10.1007/s12350-020-02052-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 01/13/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Coronary physiology assessments have been shown by multiple trials to add clinical value in detecting significant coronary artery disease and predicting cardiovascular outcomes. Fractional flow reserve (FFR) obtained during invasive coronary angiography (ICA) has become the new reference standard for hemodynamic significance detection. Absolute myocardial blood flow (MBF) quantification by means of dynamic positron emission tomography (dPET) has high diagnostic and prognostic values. FFR is an invasive measure and as such cannot be applied broadly, while MBF quantification is commonly performed on standard vascular territories intermixing normal flow from normal regions with abnormal flow from abnormal regions and consequently limiting its diagnostic power. OBJECTIVE The aim of this study is to provide physicians with reliable software tools for the non-invasive assessment of lesion-specific physiological significance for the entire coronary tree by combining PET-derived absolute flow data and coronary computed tomography angiography (CTA)-derived anatomy and coronary centerlines. METHODS The dynamic PET/CTA myocardial blood flow assessment with fused imagery (DEMYSTIFY) study is an observational prospective clinical study to develop algorithms and software tools to fuse coronary anatomy data obtained from CTA with dPET data to non-invasively measure absolute MBF, myocardial flow reserve, and relative flow reserve across specific coronary lesions. Patients (N = 108) will be collected from 4 institutions (Emory University Hospital, USA; Chonnam National University Hospital, South Korea; Samsung Medical Center, South Korea; Seoul National University Hospital, South Korea). These results will be compared to those obtained invasively in the catheterization laboratory and to a relatively novel non-invasive technique to estimate FFR based on CTA and computational fluid dynamics. CONCLUSIONS Success of these developments should lead to the following benefits: (1) eliminate unnecessary invasive coronary angiography in patients with no significant lesions, (2) avoid stenting physiologically insignificant lesions, (3) guide percutaneous coronary interventions process to the location of significant lesions, (4) provide a flow-color-coded 3D roadmap of the entire coronary tree to guide bypass surgery, and (5) use less radiation and lower the cost from unnecessary procedures. TRIAL REGISTRY The DEMYSTIFY study has been registered on ClinicalTrials.gov with registration number NCT04221594.
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Affiliation(s)
- Ahmed AlBadri
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Marina Piccinelli
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Sang-Geon Cho
- Department of Nuclear Medicine, Chonnam National University, Gwangju, Korea
| | - Joo Myung Lee
- Samsung Medical Center, Heart Vascular Stroke Institute, Seoul, Korea
| | - Wissam Jaber
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Carlo N De Cecco
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Habib Samady
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - Bon-Kwon Koo
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Korea
| | - Hee-Seung Bom
- Department of Nuclear Medicine, Chonnam National University, Gwangju, Korea
| | - Ernest V Garcia
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, USA.
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Parikh R, Patel A, Lu B, Senapati A, Mahmarian J, Chang SM. Cardiac Computed Tomography for Comprehensive Coronary Assessment: Beyond Diagnosis of Anatomic Stenosis. Methodist Debakey Cardiovasc J 2020; 16:77-85. [PMID: 32670467 PMCID: PMC7350823 DOI: 10.14797/mdcj-16-2-77] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cardiac computed tomography angiography (CCTA) has evolved into a versatile imaging modality that can depict atherosclerosis burden, determine functional significance of a stenotic lesion, and guide the management and treatment of stable coronary artery disease.1 With newer-generation scanners, diagnostic CCTA can be obtained in the majority of patients with a very acceptable radiation dose. We discuss the ability of CCTA to provide comprehensive assessment of a patient with suspected CAD, including functional techniques of stress-rest myocardial perfusion assessment using a vasodilator and a purely post-processing approach that assesses fractional flow reserve derived by CCTA. In addition, recent data validated the role of CCTA in managing stable patients with chest pain and suspected CAD, serving as a gatekeeper for invasive coronary angiogram as well as optimizing the preprocedural planning of percutaneous coronary revascularization and coronary artery bypass surgery.
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Affiliation(s)
- Roosha Parikh
- HOUSTON METHODIST DEBAKEY HEART & VASCULAR CENTER, HOUSTON METHODIST HOSPITAL, HOUSTON, TEXAS
| | - Apurva Patel
- HOUSTON METHODIST DEBAKEY HEART & VASCULAR CENTER, HOUSTON METHODIST HOSPITAL, HOUSTON, TEXAS
| | - Bin Lu
- FUWAI HOSPITAL, PEKING UNION MEDICAL COLLEGE, CHINESE ACADEMY OF MEDICAL SCIENCES, BEIJING, CHINA
| | - Alpana Senapati
- HOUSTON METHODIST DEBAKEY HEART & VASCULAR CENTER, HOUSTON METHODIST HOSPITAL, HOUSTON, TEXAS
| | - John Mahmarian
- HOUSTON METHODIST DEBAKEY HEART & VASCULAR CENTER, HOUSTON METHODIST HOSPITAL, HOUSTON, TEXAS
| | - Su Min Chang
- HOUSTON METHODIST DEBAKEY HEART & VASCULAR CENTER, HOUSTON METHODIST HOSPITAL, HOUSTON, TEXAS
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Yang HJ, Dey D, Sykes J, Butler J, Biernaski H, Kovacs M, Bi X, Sharif B, Cokic I, Tang R, Slomka P, Prato FS, Dharmakumar R. Heart Rate-Independent 3D Myocardial Blood Oxygen Level-Dependent MRI at 3.0 T with Simultaneous 13N-Ammonia PET Validation. Radiology 2020; 295:82-93. [PMID: 32096705 PMCID: PMC7106942 DOI: 10.1148/radiol.2020191456] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 12/20/2019] [Accepted: 01/03/2020] [Indexed: 11/11/2022]
Abstract
Background Despite advances, blood oxygen level-dependent (BOLD) cardiac MRI for myocardial perfusion is limited by inadequate spatial coverage, imaging speed, multiple breath holds, and imaging artifacts, particularly at 3.0 T. Purpose To develop and validate a robust, contrast agent-unenhanced, free-breathing three-dimensional (3D) cardiac MRI approach for reliably examining changes in myocardial perfusion between rest and adenosine stress. Materials and Methods A heart rate-independent, free-breathing 3D T2 mapping technique at 3.0 T that can be completed within the period of adenosine stress (≤4 minutes) was developed by using computer simulations, ex vivo heart preparations, and dogs. Studies in dogs were performed with and without coronary stenosis and validated with simultaneously acquired nitrogen 13 (13N) ammonia PET perfusion in a clinical PET/MRI system. The MRI approach was also prospectively evaluated in healthy human volunteers (from January 2017 to September 2017). Myocardial BOLD responses (MBRs) between normal and ischemic myocardium were compared with mixed model analysis. Results Dogs (n = 10; weight range, 20-25 kg; mongrel dogs) and healthy human volunteers (n = 10; age range, 22-53 years; seven men) were evaluated. In healthy dogs, T2 MRI at adenosine stress was greater than at rest (mean rest vs stress, 38.7 msec ± 2.5 [standard deviation] vs 45.4 msec ± 3.3, respectively; MBR, 1.19 ± 0.08; both, P < .001). At the same conditions, mean rest versus stress PET perfusion was 1.1 mL/mg/min ± 0.11 versus 2.3 mL/mg/min ± 0.82, respectively (P < .001); myocardial perfusion reserve (MPR) was 2.4 ± 0.82 (P < .001). The BOLD response and PET MPR were positively correlated (R = 0.67; P < .001). In dogs with coronary stenosis, perfusion anomalies were detected on the basis of MBR (normal vs ischemic, 1.09 ± 0.05 vs 1.00 ± 0.04, respectively; P < .001) and MPR (normal vs ischemic, 2.7 ± 0.08 vs 1.7 ± 1.1, respectively; P < .001). Human volunteers showed increased myocardial T2 at stress (rest vs stress, 44.5 msec ± 2.6 vs 49.0 msec ± 5.5, respectively; P = .004; MBR, 1.1 msec ± 8.08). Conclusion This three-dimensional cardiac blood oxygen level-dependent (BOLD) MRI approach overcame key limitations associated with conventional cardiac BOLD MRI by enabling whole-heart coverage within the standard duration of adenosine infusion, and increased the magnitude and reliability of BOLD contrast, which may be performed without requiring breath holds. © RSNA, 2020 Online supplemental material is available for this article. See also the editorial by Almeida in this issue.
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Affiliation(s)
- Hsin-Jung Yang
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - Damini Dey
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - Jane Sykes
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - John Butler
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - Heather Biernaski
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - Michael Kovacs
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - Xiaoming Bi
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - Behzad Sharif
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - Ivan Cokic
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - Richard Tang
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - Piotr Slomka
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - Frank S. Prato
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
| | - Rohan Dharmakumar
- From the Department of Biomedical Sciences, Cedars-Sinai Medical
Center, Biomedical Imaging Research Institute, PACT Bldg–Suite 400, 8700
Beverly Blvd, Los Angeles, CA 90048 (H.J.Y., D.D., B.S., I.C., R.T., P.S.,
R.D.); Department of Bioengineering (H.J.Y., R.D.) and David Geffen School of
Medicine (D.D., P.S.), University of California, Los Angeles Calif; Lawson
Health Research Institute, London, Canada (J.S., J.B., H.B., M.K., F.S.P.); and
MR R&D, Siemens Healthcare, Los Angeles, Calif (X.B.)
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Ryan M, Modi B, Rahman H, Williams R, Arri S, Asrress K, Lumley M, Ellis H, Redwood S, Perera D. Do Fractional Flow Reserve and Instantaneous Wave-Free Ratio Correlate With Exercise Coronary Physiology? Circ Cardiovasc Interv 2020; 13:e008415. [PMID: 32089003 DOI: 10.1161/circinterventions.119.008415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Matthew Ryan
- Cardiovascular Division, King's College London, United Kingdom
| | - Bhavik Modi
- Cardiovascular Division, King's College London, United Kingdom
| | - Haseeb Rahman
- Cardiovascular Division, King's College London, United Kingdom
| | - Rupert Williams
- Cardiovascular Division, King's College London, United Kingdom
| | - Satpal Arri
- Cardiovascular Division, King's College London, United Kingdom
| | - Kaleab Asrress
- Cardiovascular Division, King's College London, United Kingdom
| | - Matthew Lumley
- Cardiovascular Division, King's College London, United Kingdom
| | - Howard Ellis
- Cardiovascular Division, King's College London, United Kingdom
| | - Simon Redwood
- Cardiovascular Division, King's College London, United Kingdom
| | - Divaka Perera
- Cardiovascular Division, King's College London, United Kingdom
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40
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Weil BR, Suzuki G, Canty JM. Transmural variation in microvascular remodeling following percutaneous revascularization of a chronic coronary stenosis in swine. Am J Physiol Heart Circ Physiol 2020; 318:H696-H705. [PMID: 32056445 PMCID: PMC7099450 DOI: 10.1152/ajpheart.00502.2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 01/30/2020] [Accepted: 02/10/2020] [Indexed: 01/09/2023]
Abstract
Remodeling of the coronary microcirculation is known to occur distal to a chronic coronary stenosis, but the reversibility of these changes and their functional significance on maximum myocardial perfusion before and after revascularization is unknown. Accordingly, swine instrumented with a chronic silastic stenosis on the left anterior descending coronary artery to produce hibernating myocardium underwent percutaneous coronary intervention (PCI; n = 8) and were compared with animals with a persistent stenosis (n = 8), as well as sham controls (n = 6). Stenotic animals demonstrated an increased subendocardial arteriolar wall thickness-to-lumen ratio (37.8 ± 3.3 vs. 28.3 ± 1.3% in sham, P = 0.04), reduced lumen area per arteriole (597 ± 88 vs. 927 ± 113 μm2, P = 0.04), and a compensatory increase in arteriolar density (9.4 ± 1.0 vs. 5.3 ± 0.4 arterioles/mm2, P < 0.01). As a result, vasodilated flow immediately after PCI was similar to normally perfused remote regions (5.1 ± 1.0 vs. 4.8 ± 0.9 ml·min-1·g-1, P = 0.87). When assessed 1-mo after PCI, increases in wall thickness-to-lumen diameter (42.2 ± 3.3%) and reductions in lumen area per arteriole (638 ± 59 μm2) remained unchanged, but arteriolar density returned to normal (5.2 ± 0.5 arterioles/mm2). As a result, maximum subendocardial flow during adenosine declined and was lower than remote regions (2.6 ± 0.3 vs. 5.9 ± 1.1 ml·min-1·g-1, P = 0.01). There was no microvascular remodeling in subepicardial arterioles, and maximum perfusion remained unchanged. These data demonstrate that subendocardial microvascular remodeling occurs distal to a chronic epicardial stenosis. The regression of arteriolar density without increases in luminal area may precipitate stress-induced subendocardial ischemia in the absence of a physiologically significant stenosis.NEW & NOTEWORTHY Swine with a chronic coronary stenosis exhibit subendocardial microvascular remodeling distal to a critical stenosis characterized by an increase in arteriolar wall thickness and reduction in lumen area with a compensatory increase in arteriolar density. The present study is the first to demonstrate that subendocardial arteriolar density normalizes 1-mo after revascularization, but the lumen area of individual arterioles remains reduced. This leads to a reduction in maximal subendocardial perfusion at this time point despite initial normalization of vasodilator reserve after revascularization. This pattern of chronic microvascular structural remodeling could contribute to recurrent subendocardial ischemia in the absence of coronary restenosis during tachycardia and increases in myocardial oxygen demand.
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Affiliation(s)
- Brian R Weil
- Department of Physiology and Biophysics, University at Buffalo, Buffalo, New York
- Clinical and Translational Science Institute, University at Buffalo, Buffalo, New York
| | - Gen Suzuki
- Department of Medicine, University at Buffalo, Buffalo, New York
- Clinical and Translational Science Institute, University at Buffalo, Buffalo, New York
| | - John M Canty
- Department of Physiology and Biophysics, University at Buffalo, Buffalo, New York
- Department of Medicine, University at Buffalo, Buffalo, New York
- Department of Biomedical Engineering, University at Buffalo, Buffalo, New York
- Veterans Affairs of Western New York Health Care System, Buffalo, New York
- Clinical and Translational Science Institute, University at Buffalo, Buffalo, New York
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Le MTP, Zarinabad N, D’Angelo T, Mia I, Heinke R, Vogl TJ, Zeiher A, Nagel E, Puntmann VO. Sub-segmental quantification of single (stress)-pass perfusion CMR improves the diagnostic accuracy for detection of obstructive coronary artery disease. J Cardiovasc Magn Reson 2020; 22:14. [PMID: 32028980 PMCID: PMC7006214 DOI: 10.1186/s12968-020-0600-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 01/07/2020] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Myocardial perfusion with cardiovascular magnetic resonance (CMR) imaging is an established diagnostic test for evaluation of myocardial ischaemia. For quantification purposes, the 16 segment American Heart Association (AHA) model poses limitations in terms of extracting relevant information on the extent/severity of ischaemia as perfusion deficits will not always fall within an individual segment, which reduces its diagnostic value, and makes an accurate assessment of outcome data or a result comparison across various studies difficult. We hypothesised that division of the myocardial segments into epi- and endocardial layers and a further circumferential subdivision, resulting in a total of 96 segments, would improve the accuracy of detecting myocardial hypoperfusion. Higher (sub-)subsegmental recording of perfusion abnormalities, which are defined relatively to the normal reference using the subsegment with the highest value, may improve the spatial encoding of myocardial blood flow, based on a single stress perfusion acquisition. OBJECTIVE A proof of concept comparison study of subsegmentation approaches based on transmural segments (16 AHA and 48 segments) vs. subdivision into epi- and endocardial (32) subsegments vs. further circumferential subdivision into 96 (sub-)subsegments for diagnostic accuracy against invasively defined obstructive coronary artery disease (CAD). METHODS Thirty patients with obstructive CAD and 20 healthy controls underwent perfusion stress CMR imaging at 3 T during maximal adenosine vasodilation and a dual bolus injection of 0.1 mmol/kg gadobutrol. Using Fermi deconvolution for blood flow estimation, (sub-)subsegmental values were expressed relative to the (sub-)subsegment with the highest flow. In addition, endo-/epicardial flow ratios were calculated based on 32 and 96 (sub-)subsegments. A receiver operating characteristics (ROC) curve analysis was performed to compare the diagnostic performance of discrimination between patients with CAD and healthy controls. Observer reproducibility was assessed using Bland-Altman approaches. RESULTS Subdivision into more and smaller segments revealed greater accuracy for #32, #48 and # 96 compared to the standard #16 approach (area under the curve (AUC): 0.937, 0.973 and 0.993 vs 0.820, p < 0.05). The #96-based endo-/epicardial ratio was superior to the #32 endo-/epicardial ratio (AUC 0.979, vs. 0.932, p < 0.05). Measurements for the #16 model showed marginally better reproducibility compared to #32, #48 and #96 (mean difference ± standard deviation: 2.0 ± 3.6 vs. 2.3 ± 4.0 vs 2.5 ± 4.4 vs. 4.1 ± 5.6). CONCLUSIONS Subsegmentation of the myocardium improves diagnostic accuracy and facilitates an objective cut-off-based description of hypoperfusion, and facilitates an objective description of hypoperfusion, including the extent and severity of myocardial ischaemia. Quantification based on a single (stress-only) pass reduces the overall amount of gadolinium contrast agent required and the length of the overall diagnostic study.
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Affiliation(s)
- Melanie T. P. Le
- Institute for Experimental and Translational Cardiovascular Imaging, University Hospital Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt am Main, Germany
| | - Niloufar Zarinabad
- Institute for Experimental and Translational Cardiovascular Imaging, University Hospital Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt am Main, Germany
| | - Tommaso D’Angelo
- Institute for Experimental and Translational Cardiovascular Imaging, University Hospital Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt am Main, Germany
- Department of Biomedical Sciences and Morphological and Functional Imaging, G. Martino University Hospital Messina, Via Consolare Valeria 1, Messina, 98100 Italy
| | - Ibnul Mia
- Institute for Experimental and Translational Cardiovascular Imaging, University Hospital Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt am Main, Germany
| | - Robert Heinke
- Institute for Experimental and Translational Cardiovascular Imaging, University Hospital Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt am Main, Germany
| | - Thomas J. Vogl
- Department of Radiology, University Hospital Frankfurt, Theodor-Stern Kai 7, Frankfurt am Main, Germany
| | - Andreas Zeiher
- Department of Cardiology, University Hospital Frankfurt, Theodor-Stern Kai 7, Frankfurt am Main, Germany
| | - Eike Nagel
- Institute for Experimental and Translational Cardiovascular Imaging, University Hospital Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt am Main, Germany
| | - Valentina O. Puntmann
- Institute for Experimental and Translational Cardiovascular Imaging, University Hospital Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt am Main, Germany
- Department of Cardiology, University Hospital Frankfurt, Theodor-Stern Kai 7, Frankfurt am Main, Germany
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42
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Cai P, Zhong W, Wang Y, Wang X. Effects of white-coat, masked and sustained hypertension on coronary artery stenosis and cardiac arrhythmia. Hypertens Res 2020; 43:121-131. [PMID: 31624353 PMCID: PMC8076024 DOI: 10.1038/s41440-019-0342-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 09/18/2019] [Indexed: 11/29/2022]
Abstract
This study aimed to investigate whether hypertension phenotypes such as white-coat hypertension (WCHT), diagnosed with the addition of nighttime blood pressure (BP) criteria, are related to coronary artery stenosis (CAS) and cardiac arrhythmia. In this cross-sectional observational study, 844 participants who did not use antihypertensive, lipid-lowering, and antiplatelet drugs were selected. The subjects were divided into normotensive (NT), WCHT, masked hypertension (MHT), and sustained hypertension (SHT) groups based on the results of clinic BP measurement and ambulatory BP monitoring. Coronary angiography and ambulatory electrocardiography were performed to determine the participants' CAS and cardiac arrhythmia status. Coronary angiography revealed 556 patients with CAS and 288 participants with normal coronary arteries. The chi-squared test showed that the incidence of CAS was higher in the MHT and SHT groups than in the NT group, while no significant change was found in the WCHT group (P = 0.003, P < 0.001, P = 0.119). The logarithm of the Gensini score was used to compare the degree of CAS between the groups. Multiple linear regression analysis showed that the degree of CAS was higher in the WCHT, MHT, and SHT groups than in the NT group (P < 0.05). The incidences of frequent atrial premature beats, atrial tachycardia, and ventricular cardiac arrhythmia were significantly higher in the WCHT and SHT groups than in the NT group, while only ventricular cardiac arrhythmia changes were observed in the MHT group. This study found that hypertension phenotypes such as WCHT were closely associated with CAS and cardiac arrhythmia.
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Affiliation(s)
- Peng Cai
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Weitian Zhong
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Yan Wang
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.
| | - Xukai Wang
- Department of Cardiology, Institute of Field Surgery, Daping Hospital, Army Medical University, Chongqing, China.
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Aikawa T, Naya M, Obara M, Manabe O, Magota K, Koyanagawa K, Asakawa N, Ito YM, Shiga T, Katoh C, Anzai T, Tsutsui H, Murthy VL, Tamaki N. Effects of coronary revascularization on global coronary flow reserve in stable coronary artery disease. Cardiovasc Res 2020; 115:119-129. [PMID: 29992275 PMCID: PMC6302265 DOI: 10.1093/cvr/cvy169] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/09/2018] [Indexed: 01/09/2023] Open
Abstract
Aims Coronary flow reserve (CFR) is an integrated measure of the entire coronary vasculature, and is a powerful prognostic marker in coronary artery disease (CAD). The extent to which coronary revascularization can improve CFR is unclear. This study aimed to evaluate the impact of percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) on CFR in patients with stable CAD. Methods and results In a prospective, multicentre observational study, CFR was measured by 15O-water positron emission tomography as the ratio of stress to rest myocardial blood flow at baseline and 6 months after optimal medical therapy (OMT) alone, PCI, or CABG. Changes in the SYNTAX and Leaman scores were angiographically evaluated as indicators of completeness of revascularization. Follow-up was completed by 75 (25 OMT alone, 28 PCI, and 22 CABG) out of 82 patients. The median SYNTAX and Leaman scores, and baseline CFR were 14.5 [interquartile range (IQR): 8–24.5], 5.5 (IQR: 2.5–12.5), and 1.94 (IQR: 1.67–2.66), respectively. Baseline CFR was negatively correlated with the SYNTAX (ρ = −0.40, P < 0.001) and Leaman scores (ρ = −0.33, P = 0.004). Overall, only CABG was associated with a significant increase in CFR [1.67 (IQR: 1.14–1.96) vs. 1.98 (IQR: 1.60–2.39), P < 0.001]. Among patients with CFR <2.0 (n = 41), CFR significantly increased in the PCI [1.70 (IQR: 1.42–1.79) vs. 2.21 (IQR: 1.78–2.49), P = 0.002, P < 0.001 for interaction between time and CFR] and CABG groups [1.28 (IQR: 1.13–1.80) vs. 1.86 (IQR: 1.57–2.22), P < 0.001]. The reduction in SYNTAX or Leaman scores after PCI or CABG was independently associated with the percent increase in CFR after adjusting for baseline characteristics (P = 0.012 and P = 0.011, respectively). Conclusion Coronary revascularization ameliorated reduced CFR in patients with obstructive CAD. The degree of improvement in angiographic CAD burden by revascularization was correlated with magnitude of improvement in CFR.
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Affiliation(s)
- Tadao Aikawa
- Department of Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, Japan
| | - Masanao Naya
- Department of Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, Japan
- Corresponding author. Tel: +81 11 706 6973; fax: +81 11 706 7874, E-mail:
| | - Masahiko Obara
- Department of Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, Japan
| | - Osamu Manabe
- Department of Nuclear Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, Japan
| | - Keiichi Magota
- Division of Medical Imaging and Technology, Hokkaido University Hospital, Sapporo, Japan, Kita-14, Nishi-5, Kita-ku, Sapporo, Japan
| | - Kazuhiro Koyanagawa
- Department of Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, Japan
| | - Naoya Asakawa
- Department of Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, Japan
| | - Yoichi M Ito
- Department of Biostatistics, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, Japan
| | - Tohru Shiga
- Department of Nuclear Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, Japan
| | - Chietsugu Katoh
- Department of Biomedical Science and Engineering, Faculty of Health Sciences, Hokkaido University, Kita-12, Nishi-5, Kita-ku, Sapporo, Japan
| | - Toshihisa Anzai
- Department of Cardiovascular Medicine, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, Japan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, Japan
| | - Venkatesh L Murthy
- Divisions of Nuclear Medicine, Cardiothoracic Imaging, and Cardiovascular Medicine, Departments of Medicine and Radiology, University of Michigan, 1500 E Medical Center, Ann Arbor, MI, USA
| | - Nagara Tamaki
- Department of Radiology, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, Japan
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Di Serafino L, Barbato E. [Invasive functional assessment of coronary artery stenosis using fractional flow reserve]. G Ital Cardiol (Rome) 2020; 21:16-24. [PMID: 31960831 DOI: 10.1714/3285.32586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The presence of myocardial ischemia significantly affects prognosis of patients with coronary artery disease. The fractional flow reserve (FFR) allows interventional cardiologists to evaluate whether an equivocal coronary artery stenosis is associated or not with myocardial ischemia, and therefore deserve to be properly treated. The present article has the purpose to provide the readers with an overview about the role of FFR in the diagnosis and management of coronary artery disease, as well as the potential related controversies. The coronary physiology on the basis of this tool is also provided together with all the procedural aspects useful in the catheterization laboratory. In addition, the landmark trials on the basis of the FFR application in different clinical settings and coronary anatomies will be described, together with the main improvements aiming at favoring a more extensive use of this invasive tool.
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Affiliation(s)
- Luigi Di Serafino
- Dipartimento di Scienze Biomediche Avanzate, Università degli Studi "Federico II", Napoli
| | - Emanuele Barbato
- Dipartimento di Scienze Biomediche Avanzate, Università degli Studi "Federico II", Napoli
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Tomaszewski M, Sybilski K, MaŁachowski J, WolaŃski W, Buszman PP. Numerical and experimental analysis of balloon angioplasty impact on flow hemodynamics improvement. Acta Bioeng Biomech 2020; 22:169-183. [PMID: 33518735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
PURPOSE The paper focuses on the numerical and experimental evaluation of the fluid flow inside chosen fragments of blood vessels. In the first stage of the study, the experimental tests were conducted using a research test stand, designed to be used in this evaluation. The study evaluated the blood flow through a silicone vessel with an implanted coronary stent. METHODS The PIV method was used in order to visualize the flow vectors inside a silicone vessel. Deformed vessel geometry implemented for computational fluid dynamics purposes was obtained owing to a non-linear simulation of the stent expansion (angioplasty process) in a silicone vessel. Additionally, a vessel model with a statistical 55% area stenosis and an irregular real vessel with an atherosclerotic plaque were also subjected to analysis from the hemodynamic flow point of view. A vessel with a statistical stenosis was also used to simulate the angioplasty process, which resulted in obtaining a flow domain for the vessel with an atherosclerotic plaque after the stent implantation. RESULTS For each case, distributions of parameters such as OSI or TAWSS were also analyzed and discussed. The areas of low TAWSS values appear close to the stent struts. CONCLUSIONS Stents with increased diameters, compared to the normal vessel diameter, create a higher risk of occurrence of the areas with low WSS values. Excessive stent deformation can cause inflammation by injuring the vessel and can initiate the restenosis and thrombotic phenomena through the increased vessel diameter.
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Affiliation(s)
- MichaŁ Tomaszewski
- Military University of Technology, Faculty of Mechanical Engineering, Warsaw, Poland
| | - Kamil Sybilski
- Military University of Technology, Faculty of Mechanical Engineering, Warsaw, Poland
| | - Jerzy MaŁachowski
- Military University of Technology, Faculty of Mechanical Engineering, Warsaw, Poland
| | - Wojciech WolaŃski
- Silesian University of Technology, Faculty of Biomedical Engineering, Gliwice, Poland
| | - Piotr P Buszman
- Andrzej Frycz-Modrzewski Krakow University, Department of Cardiology, Center for Cardiovascular Research and Development American Heart of Poland, Kraków, Poland
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Silva AC, de Antonio VZ, Sroubek J, Gervino E, Ho K, Medeiros SA, Silva FT, Pedreira GC, Stocco FG, Nearing BD, Verrier RL. Exercise and pharmacologic stress-induced interlead T-wave heterogeneity analysis to detect clinically significant coronary artery stenosis. Int J Cardiol 2020; 298:32-38. [PMID: 31412992 DOI: 10.1016/j.ijcard.2019.07.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/08/2019] [Accepted: 07/22/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND Despite widespread use of ETT and vasodilator-stress with myocardial perfusion imaging (MPI) for noninvasive detection of flow-limiting coronary artery disease, there is continued need to improve diagnostic accuracy. We examined whether measurement of interlead T-wave heterogeneity (TWH) during exercise tolerance testing (ETT) or pharmacologic stress testing improves detection of stenoses in large epicardial coronary arteries. METHODS All 137 patients at our institution who underwent diagnostic coronary angiography within 0 to 5 days after ETT (N = 81) or dipyridamole IV infusion (N = 58) in 2016 were studied, including 2 patients with both tests. Cases (N = 93) had angiographically significant stenosis (≥50% of left main or ≥ 70% of an epicardial coronary artery ≥2 mm in diameter); controls (N = 44) did not. TWH, i.e., interlead splay of T waves, was determined by second central moment analysis from precordial leads by an investigator blinded to angiographic results. RESULTS At rest, TWH levels were similar for cases and controls. ETT and dipyridamole stress testing increased TWH by 69% (p < 0.0001) and 27% (p < 0.0001), respectively, in cases. In controls, TWH did not change. Areas under the ROC curves for TWH increase for any flow-limiting coronary artery stenosis were 0.737 (p < 0.0001) for ETT and 0.818 (p < 0.0001) for dipyridamole stress testing. By contrast, neither ST-segment changes during ETT (p = 0.12) nor MPI during dipyridamole stress testing (p = 0.60) discriminated cases from controls. CONCLUSIONS TWH measurement is a novel method that improves detection of angiographically confirmed flow-limiting stenoses in large epicardial coronary arteries during both ETT and MPI during pharmacologic stress testing with dipyridamole.
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Affiliation(s)
- Anderson C Silva
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Victor Z de Antonio
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Jakub Sroubek
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard Medical School, Department of Medicine, Boston, MA, United States of America
| | - Ernest Gervino
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard Medical School, Department of Medicine, Boston, MA, United States of America
| | - Kalon Ho
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard Medical School, Department of Medicine, Boston, MA, United States of America
| | - Sofia A Medeiros
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Fernanda Tessarolo Silva
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Giovanna C Pedreira
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Fernando G Stocco
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Bruce D Nearing
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard Medical School, Department of Medicine, Boston, MA, United States of America
| | - Richard L Verrier
- Beth Israel Deaconess Medical Center, Department of Medicine, Division of Cardiovascular Medicine, Boston, MA, United States of America; Harvard School of Public Health, Department of Environmental Sciences, Boston, MA, United States of America; Harvard Medical School, Department of Medicine, Boston, MA, United States of America.
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TOPAL S, SEZENÖZ B, CANDEMİR M, AÇIKGÖZ E, AÇIKGÖZ SK, BOYACI NB. An old friend: uric acid and its association with fractional flow reserve. Turk J Med Sci 2019; 49:1614-1619. [PMID: 31655503 PMCID: PMC7518665 DOI: 10.3906/sag-1903-91] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 07/22/2019] [Indexed: 11/04/2022] Open
Abstract
Background/aim The aim of this study was to investigate the importance of preprocedural uric acid (UA) level in predicting fractional flow reserve (FFR) results of intermediate coronary lesions in patients with stable coronary artery disease undergoing coronary angiography. Materials and methods We retrospectively analyzed 293 patients who underwent FFR measurement to determine the significance of intermediate coronary stenosis detected by conventional coronary angiography. Patients were divided into 2 groups: Group 1 (n = 127) included patients with FFR of <0.80 (hemodynamically significant lesions), and Group 2 (n = 169) consisted of patients with FFR of >0.80 (hemodynamically nonsignificant lesions). Uric acid levels were assessed in both groups with the enzymatic colorimetric method by clinical chemistry autoanalyzer. Results The mean UA level was significantly higher in patients whose FFR indicated hemodynamically significant coronary lesions (UA: 5.43 ± 1.29 mg/dL in Group 1 vs. 4.51 ± 1.34 mg/dL in Group 2, P < 0.001). Conclusion Elevated UA levels are associated with hemodynamically significant coronary lesions measured with FFR. Uric acid may be used as a predictor of hemodynamically compromised coronary lesions before FFR procedures.
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Affiliation(s)
- Salih TOPAL
- Department of Cardiology, Faculty of Medicine, Gazi University, AnkaraTurkey
- * To whom correspondence should be addressed. E-mail:
| | - Burak SEZENÖZ
- Department of Cardiology, Faculty of Medicine, Gazi University, AnkaraTurkey
| | | | - Eser AÇIKGÖZ
- Department of Cardiology, Abdurrahman Yurtarslan Ankara Oncology Education and Research Hospital, AnkaraTurkey
| | - Sadık Kadri AÇIKGÖZ
- Department of Cardiology, Kahraman Kazan Hamdi Eriş State Hospital, KahramankazanTurkey
| | - Nuri Bülent BOYACI
- Department of Cardiology, Faculty of Medicine, Gazi University, AnkaraTurkey
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Zhao Y, Ping J, Yu X, Wu R, Sun C, Zhang M. Fractional flow reserve-based 4D hemodynamic simulation of time-resolved blood flow in left anterior descending coronary artery. Clin Biomech (Bristol, Avon) 2019; 70:164-169. [PMID: 31525657 DOI: 10.1016/j.clinbiomech.2019.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 08/23/2019] [Accepted: 09/08/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND The purpose of this study was to investigate the feasibility of the non-invasive assessment of hemodynamic parameters with computational fluid dynamics in left anterior descending coronary artery based on invasive fractional flow reserve. METHODS A left coronary artery model based on computed tomography angiography was reconstructed using MIMICS 18.0 for computational fluid dynamics analysis. With actual fractional flow reserve measured from the patient, 4D hemodynamic profiles of time-resolved blood flow were simulated. FINDINGS The 4D blood flow simulation could provide extensive information of blood flow status. Hemodynamic parameters, such as velocity, wall shear stress and pressure were simulated throughout the cardiac cycle. There might be high flow velocities and high wall shear stress in the stenotic region throughout the whole cycle, both of which peaked in the case of the maximum inlet differential pressure. The reverse flow and vortex were detectable at the downstream areas beneath the stenotic site. The pressure remarkably increased near the proximal stenotic end and declined in the mid-stenosis. Moreover, the simulation results provided detailed and accurate mass flow measurements of hemodynamic parameters as well. INTERPRETATION The computational fluid dynamics analysis of 4D blood flow based on fractional flow reserve is feasible in left anterior descending coronary artery. It presents the merits of providing both qualitative and quantitative information for further investigation of the links between hemodynamic parameters and left anterior descending artery stenosis.
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Affiliation(s)
- Yinghong Zhao
- Xuzhou Medical University, 209, Tongshan Road, Yunlong District, Xuzhou, Jiangsu, China
| | - Jie Ping
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xianchao Yu
- Fourth Hospital of West China, Chengdu, Sichuan, China
| | - Renyuan Wu
- Xuzhou Medical University, 209, Tongshan Road, Yunlong District, Xuzhou, Jiangsu, China
| | - Cunjie Sun
- Xuzhou Medical University, 209, Tongshan Road, Yunlong District, Xuzhou, Jiangsu, China; The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.
| | - Min Zhang
- Xuzhou Medical University, 209, Tongshan Road, Yunlong District, Xuzhou, Jiangsu, China
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Ihdayhid AR, Sakaguchi T, Kerrisk B, Hislop-Jambrich J, Fujisawa Y, Nerlekar N, Cameron JD, Seneviratne SK, Ko BS. Influence of operator expertise and coronary luminal segmentation technique on diagnostic performance, precision and reproducibility of reduced-order CT-derived fractional flow reserve technique. J Cardiovasc Comput Tomogr 2019; 14:356-362. [PMID: 31787591 DOI: 10.1016/j.jcct.2019.11.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/22/2019] [Accepted: 11/26/2019] [Indexed: 11/20/2022]
Abstract
BACKGROUND Onsite workstation-based CT-derived Fractional-Flow-Reserve (CT-FFR) is accurate in assessing hemodynamic-significance of coronary stenoses. We aim to describe the influence of operator expertise and luminal-segmentation technique on the diagnostic performance, precision and reproducibility of CT-FFR in identifying hemodynamically-significant stenosis (FFR≤0.8). METHODS Forty-eight consecutive stable-patients (86 vessels) with suspected CAD underwent research indicated invasive-FFR and 320-detector CT-coronary-angiography (CTA). CT-FFR was derived using reduced-order model on standard desktop-computer. Semi-automated coronary luminal segmentation was performed using focused-technique with manual adjustments at regions of stenosis and calcification or comprehensive-technique with manual adjustments along the entire course of the vessel. CT-FFR analysis was performed using 3 blinded operators; core-laboratory engineer using focused-technique and radiographer and cardiologist using the comprehensive-technique. Diagnostic performance was assessed by area under receiver-operating-curve (AUC). Precision with invasive FFR was determined by Bland-Altman analysis, and reproducibility by intraclass-correlation-coefficient (ICC). RESULTS Diagnostic performance was comparable among operators (Engineer: AUC = 0.88, Radiographer 0.84; Cardiologist 0.87; P = 0.59). Coronary luminal-segmentation time was shortest using focused technique (engineer 6:17 ± 2.43 min), compared with comprehensive technique (cardiologist 14.83 ± 7.09, radiographer 24.74 ± 12.65; P < 0.001). Use of focused technique was associated with widest limits of agreement (LOA) with FFR and moderate intra-operator reproducibility (engineer LOA -0.20-0.33; ICC 0.66), when compared with the comprehensive technique which demonstrated narrower LOA and excellent reproducibility [radiographer (LOA -0.17-0.20, ICC = 0.91) and cardiologist (LOA-0.15-0.23, ICC = -0.93)] CONCLUSION: A workstation-based CT-FFR technique was reproducible with high and comparable diagnostic performance among operators with different expertise. A comprehensive luminal segmentation technique was the most time-consuming and associated with the highest reproducibility and precision with FFR.
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Affiliation(s)
- Abdul Rahman Ihdayhid
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | | | - Bridget Kerrisk
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | | | | | - Nitesh Nerlekar
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - James D Cameron
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - Sujith K Seneviratne
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia
| | - Brian S Ko
- Monash Cardiovascular Research Centre, Monash University and MonashHeart, Monash Health, Clayton, Victoria, Australia.
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Escaned J, Ryan N, Mejía-Rentería H, Cook CM, Dehbi HM, Alegria-Barrero E, Alghamdi A, Al-Lamee R, Altman J, Ambrosia A, Baptista SB, Bertilsson M, Bhindi R, Birgander M, Bojara W, Brugaletta S, Buller C, Calais F, Silva PC, Carlsson J, Christiansen EH, Danielewicz M, Di Mario C, Doh JH, Erglis A, Erlinge D, Gerber RT, Going O, Gudmundsdottir I, Härle T, Hauer D, Hellig F, Indolfi C, Jakobsen L, Janssens L, Jensen J, Jeremias A, Kåregren A, Karlsson AC, Kharbanda RK, Khashaba A, Kikuta Y, Krackhardt F, Koo BK, Koul S, Laine M, Lehman SJ, Lindroos P, Malik IS, Maeng M, Matsuo H, Meuwissen M, Nam CW, Niccoli G, Nijjer SS, Olsson H, Olsson SE, Omerovic E, Panayi G, Petraco R, Piek JJ, Ribichini F, Samady H, Samuels B, Sandhall L, Sapontis J, Sen S, Seto AH, Sezer M, Sharp ASP, Shin ES, Singh J, Takashima H, Talwar S, Tanaka N, Tang K, Van Belle E, van Royen N, Varenhorst C, Vinhas H, Vrints CJ, Walters D, Yokoi H, Fröbert O, Patel MR, Serruys P, Davies JE, Götberg M. Safety of the Deferral of Coronary Revascularization on the Basis of Instantaneous Wave-Free Ratio and Fractional Flow Reserve Measurements in Stable Coronary Artery Disease and Acute Coronary Syndromes. JACC Cardiovasc Interv 2019; 11:1437-1449. [PMID: 30093050 DOI: 10.1016/j.jcin.2018.05.029] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/14/2018] [Accepted: 05/16/2018] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The aim of this study was to investigate the clinical outcomes of patients deferred from coronary revascularization on the basis of instantaneous wave-free ratio (iFR) or fractional flow reserve (FFR) measurements in stable angina pectoris (SAP) and acute coronary syndromes (ACS). BACKGROUND Assessment of coronary stenosis severity with pressure guidewires is recommended to determine the need for myocardial revascularization. METHODS The safety of deferral of coronary revascularization in the pooled per-protocol population (n = 4,486) of the DEFINE-FLAIR (Functional Lesion Assessment of Intermediate Stenosis to Guide Revascularisation) and iFR-SWEDEHEART (Instantaneous Wave-Free Ratio Versus Fractional Flow Reserve in Patients With Stable Angina Pectoris or Acute Coronary Syndrome) randomized clinical trials was investigated. Patients were stratified according to revascularization decision making on the basis of iFR or FFR and to clinical presentation (SAP or ACS). The primary endpoint was major adverse cardiac events (MACE), defined as the composite of all-cause death, nonfatal myocardial infarction, or unplanned revascularization at 1 year. RESULTS Coronary revascularization was deferred in 2,130 patients. Deferral was performed in 1,117 patients (50%) in the iFR group and 1,013 patients (45%) in the FFR group (p < 0.01). At 1 year, the MACE rate in the deferred population was similar between the iFR and FFR groups (4.12% vs. 4.05%; fully adjusted hazard ratio: 1.13; 95% confidence interval: 0.72 to 1.79; p = 0.60). A clinical presentation with ACS was associated with a higher MACE rate compared with SAP in deferred patients (5.91% vs. 3.64% in ACS and SAP, respectively; fully adjusted hazard ratio: 0.61 in favor of SAP; 95% confidence interval: 0.38 to 0.99; p = 0.04). CONCLUSIONS Overall, deferral of revascularization is equally safe with both iFR and FFR, with a low MACE rate of about 4%. Lesions were more frequently deferred when iFR was used to assess physiological significance. In deferred patients presenting with ACS, the event rate was significantly increased compared with SAP at 1 year.
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Affiliation(s)
- Javier Escaned
- Hospital Clínico San Carlos, IDISSC, and Universidad Complutense de Madrid, Madrid, Spain
| | - Nicola Ryan
- Hospital Clínico San Carlos, IDISSC, and Universidad Complutense de Madrid, Madrid, Spain
| | - Hernán Mejía-Rentería
- Hospital Clínico San Carlos, IDISSC, and Universidad Complutense de Madrid, Madrid, Spain
| | | | - Hakim-Moulay Dehbi
- CRUK & UCL Cancer Trials Centre, University College London, London, United Kingdom
| | | | - Ali Alghamdi
- King Abdulaziz Medical City Cardiac Center, Riyadh, Saudi Arabia
| | - Rasha Al-Lamee
- Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - John Altman
- Colorado Heart and Vascular, Lakewood, Colorado
| | | | | | - Maria Bertilsson
- Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden
| | | | - Mats Birgander
- Department of Cardiology, Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden
| | - Waldemar Bojara
- Gemeinschaftsklinikum Mittelrhein, Kemperhof Koblenz, Koblenz, Germany
| | - Salvatore Brugaletta
- Cardiovascular Institute, Hospital Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | | | - Fredrik Calais
- Department of Cardiology, Faculty of Health, Örebro University, Örebro, Sweden
| | | | - Jörg Carlsson
- Kalmar County Hospital, and Linnaeus University, Faculty of Health and Life Sciences, Kalmar, Sweden
| | | | | | - Carlo Di Mario
- Royal Brompton Hospital, Imperial College London, United Kingdom, and University of Florence, Florence, Italy
| | - Joon-Hyung Doh
- Inje University Ilsan Paik Hospital, Daehwa-Dong, South Korea
| | - Andrejs Erglis
- Pauls Stradins Clinical University Hospital, Riga, Latvia
| | - David Erlinge
- Department of Cardiology, Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden
| | | | - Olaf Going
- Sana Klinikum Lichtenberg, Lichtenberg, Germany
| | | | - Tobias Härle
- Klinikum Oldenburg, European Medical School, Carl von Ossietzky University, Oldenburg, Germany
| | - Dario Hauer
- Departments of Cardiology and Medical and Health Sciences, Linköping University, Linköping, Sweden
| | | | | | - Lars Jakobsen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | | | - Jens Jensen
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, and Unit of Cardiology, Capio S:t Görans Sjukhus, Stockholm, and Department of Medicine, Sundsvall Hospital, Sundsvall, Sweden
| | - Allen Jeremias
- Stony Brook University Medical Center, Stony Brook, New York
| | - Amra Kåregren
- Department of Internal Medicine, Västmanland Hospital Västerås, Västerås, Sweden
| | | | - Rajesh K Kharbanda
- John Radcliffe Hospital, Oxford University Hospitals Foundation Trust, Oxford, United Kingdom
| | | | | | | | - Bon-Kwon Koo
- Seoul National University Hospital, Seoul, South Korea
| | - Sasha Koul
- Department of Cardiology, Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden
| | - Mika Laine
- Helsinki University Hospital, Helsinki, Finland
| | | | - Pontus Lindroos
- Department of Cardiology, St. Göran Hospital, Stockholm, Sweden
| | - Iqbal S Malik
- Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Michael Maeng
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | | | | | - Chang-Wook Nam
- Keimyung University Dongsan Medical Center, Daegu, South Korea
| | | | | | - Hans Olsson
- Department of Cardiology, Karlstad Hospital, Karlstad, Sweden
| | - Sven-Erik Olsson
- Departments of Cardiology and Radiology, Helsingborg Hospital, Helsingborg, Sweden
| | - Elmir Omerovic
- Department of Cardiology, Sahlgrenska University Gothenburg, Sweden
| | - Georgios Panayi
- Departments of Cardiology and Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Ricardo Petraco
- Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Jan J Piek
- AMC Heart Center, Academic Medical Center, Amsterdam, the Netherlands
| | | | | | - Bruce Samuels
- Cedars-Sinai Heart Institute, Los Angeles, California
| | - Lennart Sandhall
- Departments of Cardiology and Radiology, Helsingborg Hospital, Helsingborg, Sweden
| | | | - Sayan Sen
- Hammersmith Hospital, Imperial College London, London, United Kingdom
| | - Arnold H Seto
- Veterans Affairs Long Beach Healthcare System, Long Beach, California
| | - Murat Sezer
- Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - Andrew S P Sharp
- Royal Devon and Exeter Hospital and University of Exeter, Exeter, United Kingdom
| | - Eun-Seok Shin
- Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Jasvindar Singh
- Washington University School of Medicine, St. Louis, Missouri
| | | | - Suneel Talwar
- Royal Bournemouth General Hospital, Bournemouth, United Kingdom
| | | | - Kare Tang
- Essex Cardiothoracic Centre, Basildon and Anglia Ruskin University, Chelmsford, United Kingdom
| | - Eric Van Belle
- Institut Coeur Poumon, Lille University Hospital, and INSERM Unité 1011, Lille, France
| | | | | | | | | | | | | | - Ole Fröbert
- Department of Cardiology, Faculty of Health, Örebro University, Örebro, Sweden
| | | | - Patrick Serruys
- Department of Cardiology, Imperial College London, London, United Kingdom
| | - Justin E Davies
- Hammersmith Hospital, Imperial College London, London, United Kingdom.
| | - Matthias Götberg
- Department of Cardiology, Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden
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