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Huang X, Li Y, Zheng H, Xu Y. Sudden Cardiac Death Risk Stratification in Heart Failure With Preserved Ejection Fraction. Cardiol Rev 2024:00045415-990000000-00279. [PMID: 38814094 DOI: 10.1097/crd.0000000000000728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Heart failure with preserved ejection fraction (HFpEF) poses a significant clinical challenge, with sudden cardiac death (SCD) emerging as one of the leading causes of mortality. Despite advancements in cardiovascular medicine, predicting and preventing SCD in HFpEF remains complex due to multifactorial pathophysiological mechanisms and patient heterogeneity. Unlike heart failure with reduced ejection fraction, where impaired contractility and ventricular remodeling predominate, HFpEF pathophysiology involves heavy burden of comorbidities such as hypertension, obesity, and diabetes. Diverse mechanisms, including diastolic dysfunction, microvascular abnormalities, and inflammation, also contribute to distinct disease and SCD risk profiles. Various parameters such as clinical factors and electrocardiogram features have been proposed in SCD risk assessment. Advanced imaging modalities and biomarkers offer promise in risk prediction, yet comprehensive risk stratification models specific to HFpEF ar0e lacking. This review offers recent evidence on SCD risk factors and discusses current therapeutic strategies aimed at reducing SCD risk in HFpEF.
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Affiliation(s)
- Xu Huang
- From the Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
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2
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Owyang CG, Rippon B, Teran F, Brodie D, Araos J, Burkhoff D, Kim J, Tonna JE. Pulmonary Artery Pressures and Mortality during VA ECMO: An ELSO Registry Analysis. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.08.08.23293859. [PMID: 37645725 PMCID: PMC10462237 DOI: 10.1101/2023.08.08.23293859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Background Systemic hemodynamics and specific ventilator settings have been shown to predict survival during venoarterial extracorporeal membrane oxygenation (VA ECMO). While these factors are intertwined with right ventricular (RV) function, the independent relationship between RV function and survival during VA ECMO is unknown. Objectives To identify the relationship between RV function with mortality and duration of ECMO support. Methods Cardiac ECMO runs in adults from the Extracorporeal Life Support Organization (ELSO) Registry between 2010 and 2022 were queried. RV function was quantified via pulmonary artery pulse pressure (PAPP) for pre-ECMO and on-ECMO periods. A multivariable model was adjusted for Society for Cardiovascular Angiography and Interventions (SCAI) stage, age, gender, and concurrent clinical data (i.e., pulmonary vasodilators and systemic pulse pressure). The primary outcome was in-hospital mortality. Results A total of 4,442 ECMO runs met inclusion criteria and had documentation of hemodynamic and illness severity variables. The mortality rate was 55%; non-survivors were more likely to be older, have a worse SCAI stage, and have longer pre-ECMO endotracheal intubation times (P < 0.05 for all) than survivors. Improving PAPP from pre-ECMO to on-ECMO time (Δ PAPP) was associated with reduced mortality per 10 mm Hg increase (OR: 0.91 [95% CI: 0.86-0.96]; P=0.002). Increasing on-ECMO PAPP was associated with longer time on ECMO per 10 mm Hg (Beta: 15 [95% CI: 7.7-21]; P<0.001). Conclusions Early improvements in RV function from pre-ECMO values were associated with mortality reduction during cardiac ECMO. Incorporation of Δ PAPP into risk prediction models should be considered.
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Affiliation(s)
- Clark G. Owyang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, NewYork-Presbyterian Hospital/Weill Cornell Medical College, New York, New York, USA
- Department of Emergency Medicine, NewYork-Presbyterian Hospital/Weill Cornell Medical College, New York, New York, USA
| | - Brady Rippon
- Department of Population Health Sciences, Weill Cornell Medical College, New York, New York, USA
| | - Felipe Teran
- Department of Emergency Medicine, NewYork-Presbyterian Hospital/Weill Cornell Medical College, New York, New York, USA
| | - Daniel Brodie
- Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Joaquin Araos
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
| | | | - Jiwon Kim
- Division of Cardiology, Department of Medicine, Weill Cornell Medicine/New York Presbyterian Hospital, 525 East 68th Street, New York, NY, 10021, USA
| | - Joseph E. Tonna
- Division of Cardiothoracic Surgery, Department of Surgery, University of Utah Health, Salt Lake City, UT, USA; Department of Emergency Medicine, University of Utah Health, Salt Lake City, UT, USA
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3
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Chen C, Wang J, Liu C, Hu J. Cardiac resident macrophages: key regulatory mediators in the aftermath of myocardial infarction. Front Immunol 2023; 14:1207100. [PMID: 37457720 PMCID: PMC10348646 DOI: 10.3389/fimmu.2023.1207100] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 06/13/2023] [Indexed: 07/18/2023] Open
Abstract
Acute myocardial infarction (MI) is a prevalent and highly fatal global disease. Despite significant reduction in mortality rates with standard treatment regimens, the risk of heart failure (HF) remains high, necessitating innovative approaches to protect cardiac function and prevent HF progression. Cardiac resident macrophages (cMacs) have emerged as key regulators of the pathophysiology following MI. cMacs are a heterogeneous population composed of subsets with different lineage origins and gene expression profiles. Several critical aspects of post-MI pathophysiology have been shown to be regulated by cMacs, including recruitment of peripheral immune cells, clearance and replacement of damaged myocardial cells. Furthermore, cMacs play a crucial role in regulating cardiac fibrosis, risk of arrhythmia, energy metabolism, as well as vascular and lymphatic remodeling. Given the multifaceted roles of cMacs in post-MI pathophysiology, targeting cMacs represents a promising therapeutic strategy. Finally, we discuss novel treatment strategies, including using nanocarriers to deliver drugs to cMacs or using cell therapies to introduce exogenous protective cMacs into the heart.
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Winsløw U, Elming MB, Thune JJ, Haarbo J, Thornvig Philbert B, Svendsen JH, Pehrson S, Jøns C, Bundgaard H, Køber L, Risum N. Reduced inferior wall longitudinal strain is associated with malignant arrhythmias in non-ischemic heart failure. Pacing Clin Electrophysiol 2023. [PMID: 37120825 DOI: 10.1111/pace.14706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/03/2023] [Accepted: 04/15/2023] [Indexed: 05/02/2023]
Abstract
BACKGROUND Reduced systolic myocardial function in the inferior region of the left ventricle has been suggested to be associated with malignant arrhythmias. We tested this hypothesis in patients with non-ischemic heart failure. METHODS Patients with non-ischemic heart failure (left ventricular ejection fraction [LVEF] < 35%) were evaluated by 2D-speckle-tracking echocardiography. The regional longitudinal strain was calculated for each of the six left ventricular walls. The reduced regional function was defined as strain below the median. The outcome was a composite of sudden cardiac death, admission with sustained ventricular arrhythmia, resuscitated cardiac arrest, and appropriate therapy from a primary prophylactic implantable cardioverter defibrillator. Time-to-first-event analysis was performed using a Cox model. RESULTS From two centers, 401 patients were included (median age: 63 years, 72% male) with a median LVEF of 25% (interquartile range [IQR] 20;30), and a median inferior wall strain of -9.0% (-12.5; -5.4). During a median follow-up of 4.0 years, 52 outcomes occurred. After multivariate adjustment for clinical and electrocardiographic parameters, inferior wall strain was independently associated with the outcome (HR 2.50 [1.35; 4.62], p = .003). No independent association was found between the composite outcome and reduced strain in any of the other left ventricular walls, Global Longitudinal Strain (HR 1.66 [0.93; 2.98], p = .09), or LVEF (HR 1.33 [0.75; 2.33], p = .33). CONCLUSIONS Below median strain in the left ventricular inferior region was independently associated with a 2.5-fold increase in the risk of malignant arrhythmias and sudden cardiac death in patients with non-ischemic heart failure.
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Affiliation(s)
- Ulrik Winsløw
- Department of Cardiology, Copenhagen University, Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Marie Bayer Elming
- Department of Cardiology, Zealand University Hospital-Roskilde, Roskilde, Denmark
| | - Jens Jakob Thune
- Department of Cardiology, Copenhagen University Hospital-Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Jens Haarbo
- Department of Cardiology, Copenhagen University Hospital-Herlev and Gentofte, Herlev, Denmark
| | - Berit Thornvig Philbert
- Department of Cardiology, Copenhagen University, Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Jesper Hastrup Svendsen
- Department of Cardiology, Copenhagen University, Hospital-Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Steen Pehrson
- Department of Cardiology, Copenhagen University, Hospital-Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Christian Jøns
- Department of Cardiology, Copenhagen University, Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Henning Bundgaard
- Department of Cardiology, Copenhagen University, Hospital-Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Lars Køber
- Department of Cardiology, Copenhagen University, Hospital-Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Niels Risum
- Department of Cardiology, Copenhagen University, Hospital-Rigshospitalet, Copenhagen, Denmark
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5
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Ghannam M, Liang JJ, Latchamsetty R, Crawford T, Jongnarangsin K, Morady F, Bogun F. Importance of Right Ventricular Mapping and Ablation for Ventricular Tachycardia in Postinfarction Patients. JACC Clin Electrophysiol 2023; 9:17-25. [PMID: 36697197 DOI: 10.1016/j.jacep.2022.08.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 08/08/2022] [Accepted: 08/22/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND The characteristics of patients with post-myocardial infarction (PMI) ventricular tachycardia (VT) who require right ventricular (RV) ablation are underreported. OBJECTIVES The aims of this study were to examine the characteristics and outcomes of patients undergoing PMI VT ablation who have target sites in the right ventricle and to compare patient and VT characteristics between patients with free wall vs septal RV target sites. METHODS Consecutive patients undergoing ablation for PMI VT with target sites located within the right ventricle were included. Patients were stratified on the basis of the presence of free wall vs septal RV target sites. RESULTS Among 277 consecutive patient undergoing PMI VT ablation, 30 (11%) had RV target sites (mean age 68.71 ± 9.5 years, 29 men [97%], mean left ventricular ejection fraction [LVEF] 28.7% ± 16.7%). Twenty patients had only septal VTs, and 10 patients had only free wall VTs. Fifty-seven VTs with RV targets (1.9 ± 1.4 per patient, mean cycle length 338 ± 90 ms, 53 left bundle branch, 36 superior axis) were induced. Patients with RV free wall VTs had greater rates of RV dysfunction (80% vs 30%; P = 0.023) but had greater LVEFs (38.3% ± 21.06% vs 23.9% ± 11.93%; P = 0.02). Over a mean follow-up period of 3.4 ± 3.2 years, patients with RV septal target sites had worse survival free of VT, transplantation, or left ventricular assist device placement after ablation (log-rank P < 0.05). CONCLUSIONS The arrhythmogenic substrate in PMI patients often involves the right ventricle, including the septum and free wall. The presence of RV dysfunction and greater LVEF were associated with the presence of RV free wall target sites. Patients with only RV septal target sites had worse postablation outcomes.
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Affiliation(s)
| | | | | | | | | | - Fred Morady
- University of Michigan, Ann Arbor, Michigan, USA
| | - Frank Bogun
- University of Michigan, Ann Arbor, Michigan, USA.
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Jung RG, Di Santo P, Mathew R, Simard T, Parlow S, Weng W, Abdel-Razek O, Malhotra N, Cheung M, Hutson JH, Marbach JA, Motazedian P, Thibert MJ, Fernando SM, Nery PB, Nair GM, Russo JJ, Hibbert B, Ramirez FD. Arrhythmic events and mortality in patients with cardiogenic shock on inotropic support: results of the DOREMI randomized trial. Can J Cardiol 2022; 39:394-402. [PMID: 36150583 DOI: 10.1016/j.cjca.2022.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/02/2022] Open
Abstract
BACKGROUND Inotropic support is widely used in the management of cardiogenic shock (CS). Existing data on the incidence and significance of arrhythmic events in patients with CS on inotropic support is at high risk of bias. METHODS The DObutamine compaREd to MIlrinone (DOREMI) trial randomized patients to receive dobutamine or milrinone in a double-blind fashion. Patients with and without arrhythmic events (defined as arrhythmias requiring intervention or sustained ventricular arrhythmias) were compared to (1) identify factors associated with their occurrence and (2) examine their association with in-hospital mortality and secondary outcomes. RESULTS Ninety-two patients (47.9%) had arrhythmic events, occurring equally with dobutamine and milrinone (P=0.563). The need for vasopressor support at inotrope initiation and a history of atrial fibrillation were positively associated with arrhythmic events whereas predominant right ventricular dysfunction, previous myocardial infarction, and increasing left ventricular ejection fraction were negatively associated with them. Supraventricular arrhythmic events were not associated with mortality (RR 0.97, 95% CI 0.68-1.40, P=0.879) but were positively associated with resuscitated cardiac arrests and hospital length of stay. Ventricular arrhythmic events were positively associated with mortality (RR 1.66, 95% CI 1.13-2.43; P=0.026) and resuscitated cardiac arrests. Arrhythmic events were most often treated with amiodarone (97%) and electrical cardioversion (27%), which were not associated with mortality. CONCLUSIONS Clinically relevant arrhythmic events occur in approximately half of patients with CS treated with dobutamine or milrinone and are associated with adverse clinical outcomes. Five factors may help identify patients most at risk of arrhythmic events.
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Affiliation(s)
- Richard G Jung
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario Canada
| | - Pietro Di Santo
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | - Rebecca Mathew
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Trevor Simard
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Simon Parlow
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Willy Weng
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Omar Abdel-Razek
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Nikita Malhotra
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Matthew Cheung
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Jordan H Hutson
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Critical Care, University of Ottawa, Ottawa, Ontario, Canada
| | - Jeffrey A Marbach
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Pouya Motazedian
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Michael J Thibert
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Shannon M Fernando
- Division of Critical Care, University of Ottawa, Ottawa, Ontario, Canada
| | - Pablo B Nery
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Girish M Nair
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Juan J Russo
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Benjamin Hibbert
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario Canada
| | - F Daniel Ramirez
- CAPITAL Research Group, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada; School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada.
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7
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Koutsampasopoulos K, Vogiatzis I, Ziakas A, Papadopoulos CΕ, Loutradis C, Imprialos KP, Stavropoulos K, Vasilikos V, Athyros VG, Karagiannis A, Doumas M, Papademetriou V. Right ventricular performance in patients with heart failure with mildly reduced ejection fraction: the forgotten ventricle. Int J Cardiovasc Imaging 2022; 38:2363-2372. [PMID: 36434346 DOI: 10.1007/s10554-022-02652-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/16/2022] [Indexed: 11/29/2022]
Abstract
Right ventricular (RV) function is a major determinant of prognosis and adverse outcomes in patients with heart failure (HF). It is largely unknown if HF with mildly reduced ejection fraction (HFmrEF) patients have some special characteristics in RV function (RVF) that may distinguish them from HF with reduced or preserved ejection fraction (HFrEF or HFpEF) patients. Standard echocardiography was performed to estimate RVF [tricuspid annular systolic velocity (TDSV), plane systolic excursion (TAPSE), TAPSE to pulmonary artery systolic pressure (TAPSE/PASP) and RV myocardial performance index (MPI-TEI index)] in a cross-sectional study. In 306 participants, the RV systolic function evaluated with TAPSE and TDSV was impaired in 39.1 and 24.2%, respectively. TAPSE, TAPSE/PASP and TDSV were lower in HFmrEF compared with HFpEF and higher compared with HFrEF (p < 0.001 for among-groups comparison). RV diastolic dysfunction varied between 12.6 and 43.8% depending on the echocardiographic parameter. Diastolic RVF determined by tricuspid inflow E/A wave ratio (Et/At) was impaired in less patients with HFmrEF compared with those with HFpEF or HFrEF (25.9% vs 48.4% vs 56.3%; p = 0.030, respectively). RV diastolic dysfunction by et'/at' (tissue Doppler tricuspid valve annulus e' and a' waves) was impaired in less patients with HFmrEF compared with HFrEF (11.8% vs 33.3%; p = 0.019). A multivariate regression analysis revealed a significant association between RV and LV systolic dysfunction. The present study shows a high prevalence of RV dysfunction in HFmrEF patients. Study findings provides some new insights on RV and LV systolic dysfunction coupling whereas RV diastolic dysfunction was not dependent on LV systolic dysfunction.
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Affiliation(s)
- Konstantinos Koutsampasopoulos
- 2nd Propedeutic Department of Internal Medicine, Aristotle University, Konstantinoupoleos 49, 54642, Thessaloniki, Greece
| | | | - Antonios Ziakas
- 1st Cardiology Department, Aristotle University, Thessaloniki, Greece
| | | | - Charalampos Loutradis
- 2nd Propedeutic Department of Internal Medicine, Aristotle University, Konstantinoupoleos 49, 54642, Thessaloniki, Greece
| | - Konstantinos P Imprialos
- 2nd Propedeutic Department of Internal Medicine, Aristotle University, Konstantinoupoleos 49, 54642, Thessaloniki, Greece
| | - Konstantinos Stavropoulos
- 2nd Propedeutic Department of Internal Medicine, Aristotle University, Konstantinoupoleos 49, 54642, Thessaloniki, Greece
| | | | - Vasilios G Athyros
- 2nd Propedeutic Department of Internal Medicine, Aristotle University, Konstantinoupoleos 49, 54642, Thessaloniki, Greece
| | - Asterios Karagiannis
- 2nd Propedeutic Department of Internal Medicine, Aristotle University, Konstantinoupoleos 49, 54642, Thessaloniki, Greece
| | - Michael Doumas
- 2nd Propedeutic Department of Internal Medicine, Aristotle University, Konstantinoupoleos 49, 54642, Thessaloniki, Greece.
- VAMC, George Washington University, Washington, DC, USA.
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8
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Aung N, Vargas JD, Yang C, Fung K, Sanghvi MM, Piechnik SK, Neubauer S, Manichaikul A, Rotter JI, Taylor KD, Lima JAC, Bluemke DA, Kawut SM, Petersen SE, Munroe PB. Genome-wide association analysis reveals insights into the genetic architecture of right ventricular structure and function. Nat Genet 2022; 54:783-791. [PMID: 35697868 DOI: 10.1038/s41588-022-01083-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 04/22/2022] [Indexed: 01/03/2023]
Abstract
Right ventricular (RV) structure and function influence the morbidity and mortality from coronary artery disease (CAD), dilated cardiomyopathy (DCM), pulmonary hypertension and heart failure. Little is known about the genetic basis of RV measurements. Here we perform genome-wide association analyses of four clinically relevant RV phenotypes (RV end-diastolic volume, RV end-systolic volume, RV stroke volume, RV ejection fraction) from cardiovascular magnetic resonance images, using a state-of-the-art deep learning algorithm in 29,506 UK Biobank participants. We identify 25 unique loci associated with at least one RV phenotype at P < 2.27 ×10-8, 17 of which are validated in a combined meta-analysis (n = 41,830). Several candidate genes overlap with Mendelian cardiomyopathy genes and are involved in cardiac muscle contraction and cellular adhesion. The RV polygenic risk scores (PRSs) are associated with DCM and CAD. The findings substantially advance our understanding of the genetic underpinning of RV measurements.
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Affiliation(s)
- Nay Aung
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,National Institute for Health Research, Barts Cardiovascular Biomedical Research Centre, Queen Mary University of London, London, UK.,Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, West Smithfield, London, UK
| | - Jose D Vargas
- Veterans Affairs Medical Center, Washington, DC, USA.,Georgetown University, Washington, DC, USA
| | - Chaojie Yang
- Center for Public Health Genomics, University of Virginia, Charlottesville, VA, USA
| | - Kenneth Fung
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,National Institute for Health Research, Barts Cardiovascular Biomedical Research Centre, Queen Mary University of London, London, UK.,Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, West Smithfield, London, UK
| | - Mihir M Sanghvi
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,National Institute for Health Research, Barts Cardiovascular Biomedical Research Centre, Queen Mary University of London, London, UK.,Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, West Smithfield, London, UK
| | - Stefan K Piechnik
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Stefan Neubauer
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Ani Manichaikul
- Center for Public Health Genomics, University of Virginia, Charlottesville, VA, USA
| | - Jerome I Rotter
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Kent D Taylor
- The Institute for Translational Genomics and Population Sciences, Department of Pediatrics, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Joao A C Lima
- Division of Cardiology, Johns Hopkins University, Baltimore, MD, USA
| | - David A Bluemke
- Department of Radiology, University of Wisconsin, Madison, WI, USA
| | - Steven M Kawut
- Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Steffen E Petersen
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK. .,National Institute for Health Research, Barts Cardiovascular Biomedical Research Centre, Queen Mary University of London, London, UK. .,Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, West Smithfield, London, UK.
| | - Patricia B Munroe
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK. .,National Institute for Health Research, Barts Cardiovascular Biomedical Research Centre, Queen Mary University of London, London, UK.
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9
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Kim D, Kwon BS, Kim DH, Choi ES, Yun TJ, Park CS. Surgical Outcomes of Cor Triatriatum Sinister: A Single-Center Experience. J Chest Surg 2022; 55:151-157. [PMID: 35193119 PMCID: PMC9005945 DOI: 10.5090/jcs.21.134] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/20/2021] [Accepted: 12/29/2021] [Indexed: 11/16/2022] Open
Abstract
Background We investigated surgical outcomes after the surgical repair of cor triatriatum sinister (CTS). Methods Thirty-two consecutive patients who underwent surgical repair of CTS from 1993 through 2020 were included in this study. The morphological characteristics, clinical features, and surgical outcomes were described and analyzed. Results The median age and body weight at operation were 9 months (interquartile range [IQR], 3–238 months) and 7.5 kg (IQR, 5.8–49.6 kg), respectively. There were 16 males (50%). According to the modified Lucas classification, type IA (classical CTS) was most common (n=20, 62.5%). Atrial septal defect was associated in 22 patients (68.8%) and anomalous pulmonary venous return in 8 patients (25%). Pulmonary hypertension was preoperatively suspected with a high probability in 18 patients (56.3%). There was 1 early death (3.1%) after emergent membrane excision and hybrid palliation in a high-risk hypoplastic left heart syndrome patient. There were no late deaths. The overall survival rate was 96.9% at 15 years post-repair. No early survivors required reoperation during follow-up. Most survivors (31 of 32 patients, 96.9%) were in New York Heart Association functional class I at a median follow-up of 74 months (IQR, 39–195 months). At the latest echocardiography performed at a median of 42 months (IQR, 6–112 months) after repair, no residual lesion was observed except in 1 patient who had moderate pulmonary hypertension (mean pulmonary arterial pressure of 36 mm Hg). Conclusion Surgical repair of cor triatriatum could be performed safely and effectively with an extremely low risk of recurrence.
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Affiliation(s)
- Donghee Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Bo Sang Kwon
- Division of Pediatric Cardiac Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dong-Hee Kim
- Division of Pediatric Cardiac Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eun Seok Choi
- Division of Pediatric Cardiac Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Tae-Jin Yun
- Division of Pediatric Cardiac Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chun Soo Park
- Division of Pediatric Cardiac Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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10
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Neuser J, Buck HJ, Oldhafer M, Sieweke JT, Bavendiek U, Bauersachs J, Widder JD, Berliner D. Right Ventricular Function Improves Early After Percutaneous Mitral Valve Repair in Patients Suffering From Severe Mitral Regurgitation. Front Cardiovasc Med 2022; 9:830944. [PMID: 35369337 PMCID: PMC8968125 DOI: 10.3389/fcvm.2022.830944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 02/21/2022] [Indexed: 12/02/2022] Open
Abstract
Background Percutaneous mitral valve edge-to-edge procedure (PMVR) using the MitraClip® system (Abbot Vascular, CA) is an established therapy for severe mitral regurgitation (MR) in patients judged inoperable or at high surgical risk. Besides determining exercise capacity, right ventricular (RV) function has prognostic value in heart failure and after cardiac surgery. We therefore investigated the impact of PMVR on RV function in patients with severe MR. Methods and Results Sixty-three patients undergoing PMVR at our department were prospectively enrolled. Transthoracic echocardiography was performed before, early (2–12d) after PMVR and after 3 months, including advanced echocardiographic analyses such as 3D imaging and strain analyses. At baseline, all patients presented with advanced heart failure symptoms. Etiology of MR was more often secondary and, if present, left ventricular (LV) dysfunction was predominantly caused by ischemic cardiomyopathy. PMVR substantially reduced MR to a grade ≤ 2 in most patients. Echocardiographic assessment revealed a largely unchanged LV systolic function early after PMVR, while in contrast RV function substantially improved after PMVR [3D RV EF (%): pre 33.7% [27.4; 39.6], post 40.0% [34.5; 46.0] (p < 0.01 vs. pre), 3 months 42.8% [38.3; 48.1] (p < 0.01 vs. pre); 2D RV GLS (%): pre −12.9% [−14.5; −10.5], post −16.0% [−17.9; −12.6] (p < 0.01 vs. pre), 3 months −17.2% [−21.7; −14.9] (p < 0.01 vs. pre)]. Factors that attenuated RV improvement were larger ventricular volumes, lower LV function, secondary MR, and a higher STS score (all p < 0.05). Conclusion By using advanced echocardiographic parameters, we discovered an early improvement of RV function after PMVR that is preserved for months, independent from changes in LV function. Improvement of RV function was less pronounced in patients presenting with an advanced stage of heart failure and a higher burden of comorbidities reflected by the STS score.
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11
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Ohara H, Yoshihisa A, Horikoshi Y, Ishibashi S, Matsuda M, Yamadera Y, Sugawara Y, Ichijo Y, Hotsuki Y, Watanabe K, Sato Y, Misaka T, Kaneshiro T, Oikawa M, Kobayashi A, Takeishi Y. Renal Venous Stasis Index Reflects Renal Congestion and Predicts Adverse Outcomes in Patients With Heart Failure. Front Cardiovasc Med 2022; 9:772466. [PMID: 35321106 PMCID: PMC8934863 DOI: 10.3389/fcvm.2022.772466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 02/10/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundIt has been recently reported that the renal venous stasis index (RVSI) assessed by renal Doppler ultrasonography provides information to stratify pulmonary hypertension that can lead to right-sided heart failure (HF). However, the clinical significance of RVSI in HF patients has not been sufficiently examined. We aimed to examine the associations of RVSI with parameters of cardiac function and right heart catheterization (RHC), as well as with prognosis, in patients with HF.MethodsWe performed renal Doppler ultrasonography, echocardiography and RHC in hospitalized patients with HF (n = 388). RVSI was calculated as follows: RVSI = (cardiac cycle time-venous flow time)/cardiac cycle time. The patients were classified to three groups based on RVSI: control group (RVSI = 0, n = 260, 67%), low RVSI group (0 < RVSI ≤ 0.21, n = 63, 16%) and high RVSI group (RVSI > 0.21, n = 65, 17%). We examined associations of RVSI with parameters of cardiac function and RHC, and followed up for cardiac events defined as cardiac death or worsening HF.ResultsThere were significant correlations of RVSI with mean right atrial pressure (mRAP; R = 0.253, P < 0.001), right atrial area (R = 0.327, P < 0.001) and inferior vena cava diameter (R = 0.327, P < 0.001), but not with cardiac index (R = −0.019, P = 0.769). During the follow-up period (median 412 days), cardiac events occurred in 60 patients. In the Kaplan–Meier analysis, the cumulative cardiac event rate increased with increasing RVSI (log-rank, P = 0.001). In the multivariate Cox proportional hazard analysis, the cardiac event rate was independently associated with RVSI (high RVSI group vs. control group: hazard ratio, 1.908; 95% confidence interval, 1.046–3.479, P = 0.035).ConclusionRVSI assessed by renal Doppler ultrasonography reflects right-sided overload and is associated with adverse prognosis in HF patients.
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Affiliation(s)
- Himika Ohara
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Akiomi Yoshihisa
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
- Department of Clinical Laboratory Sciences, Fukushima Medical University School of Health Science, Fukushima, Japan
| | - Yuko Horikoshi
- Department of Clinical Laboratory Sciences, Fukushima Medical University School of Health Science, Fukushima, Japan
- Department of Clinical Laboratory Medicine, Fukushima Medical University, Fukushima, Japan
| | - Shinji Ishibashi
- Department of Clinical Laboratory Medicine, Fukushima Medical University, Fukushima, Japan
| | - Mitsuko Matsuda
- Department of Clinical Laboratory Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yukio Yamadera
- Department of Clinical Laboratory Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yukiko Sugawara
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yasuhiro Ichijo
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yu Hotsuki
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Koichiro Watanabe
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yu Sato
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Tomofumi Misaka
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takashi Kaneshiro
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Masayoshi Oikawa
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Atsushi Kobayashi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yasuchika Takeishi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
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12
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Finocchiaro G, Magavern EF, Georgioupoulos G, Maurizi N, Sinagra G, Carr-White G, Pantazis A, Olivotto I. Sudden cardiac death in cardiomyopathies: acting upon "acceptable" risk in the personalized medicine era. Heart Fail Rev 2022; 27:1749-1759. [PMID: 35083629 DOI: 10.1007/s10741-021-10198-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/26/2021] [Indexed: 11/04/2022]
Abstract
Patients with cardiomyopathies are confronted with the risk of sudden cardiac death (SCD) throughout their lifetime. Despite the fact that SCD is relatively rare, prognostic stratification is an integral part of physician-patient discussion, with the goal of risk modification and prevention. The current approach is based on a concept of "acceptable risk." However, there are intrinsic problems with an algorithm-based approach to risk management, magnified by the absence of robust evidence underlying clinical decision support tools, which can make high- versus low-risk classifications arbitrary. Strategies aimed at risk reduction range from selecting patients for an implantable cardioverter defibrillator (ICD) to disqualification from competitive sports. These clinical options, especially when implying the use of finite financial resources, are often delivered from the physician's perspective citing decision-making algorithms. When the burden of intervention-related risks or financial costs is deemed higher than an "acceptable risk" of SCD, the patient's perspective may not be appropriately considered. Designating a numeric threshold of "acceptable risk" has ethical implications. One could reasonably ask "acceptable to whom?" In an era when individual choice and autonomy are pillars of the physician-patient relationship, the subjective aspects of perceived risk should be acknowledged and be part of shared decision-making. This is particularly true when the lack of a strong scientific evidence base makes a dichotomous algorithm-driven approach suboptimal for unmitigated translation to clinical practice.
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Affiliation(s)
- Gherardo Finocchiaro
- Cardiothoracic Centre, Guy's and St Thomas' Hospital, London, UK. .,King's College London, London, UK. .,Royal Brompton Hospital, Sydney St, London, SW3 6NP, UK. .,Cardiovascular Clinical Academic Group, St George's, University of London, London, UK.
| | - Emma F Magavern
- The London School of Medicine and Dentistry, William Harvey Research Institute, Barts, London, UK.,Department of Clinical Pharmacology, Cardiovascular Medicine, Barts Health NHS Trust, London, UK
| | | | - Niccolo' Maurizi
- Cardiomyopathy Unit, Careggi University Hospital, Florence, Italy
| | - Gianfranco Sinagra
- Cardiovascular Department, Azienda Sanitaria Giuliano Isontina (ASUGI), University of Trieste, Trieste, Italy
| | - Gerald Carr-White
- Cardiothoracic Centre, Guy's and St Thomas' Hospital, London, UK.,King's College London, London, UK
| | | | - Iacopo Olivotto
- Cardiomyopathy Unit, Careggi University Hospital, Florence, Italy
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13
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Yildiz I, Ozmen Yildiz P, Sazlidere H, Gurevin MS, Rencuzogullari I, Karabag Y. Association between RS Time in Electrocardiogram and Right Ventricular Functions in Patients with Chronic Obstructive Pulmonary Disease. Med Princ Pract 2022; 31:463-470. [PMID: 35679840 PMCID: PMC9801344 DOI: 10.1159/000525433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 06/07/2022] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVE The occurrence of right ventricular (RV) dysfunction in chronic obstructive pulmonary disease (COPD) results in an increased risk of mortality. We aimed to study the diagnostic value of RS time in the recognition of COPD patients with RV dysfunction. METHODS 120 consecutive COPD patients were divided into two groups, patients with and without RV dysfunction, and compared them in terms of parameters including RS time. RS time was defined as the longest interval from the beginning of the QRS complex to the nadir of the S- or S'-wave in the inferolateral leads on an electrocardiogram. RESULTS RV dysfunction was observed in 36% of consecutive COPD patients with a mean age of 63.4 ± 9.8 years (83.3% male) and a mean forced expiratory volume in 1 s of 1.51 ± 0.62 lt. The heart rate, right QRS axis deviation frequency, S1S2S3 pattern frequency, and RS time (p < 0.01) were significantly higher in the patients with RV dysfunction than in those without. Body surface area, heart rate, and RS time (p < 0.001) were independent predictors of an RV dysfunction. An ROC analysis showed that the best RS time cutoff value for the prediction of RV dysfunction was 60 ms with a sensitivity of 81.4% and a specificity of 74.0%. CONCLUSION In patients with COPD, RS time prolongation, which can be easily and quickly determined from the electrocardiogram, may be a marker for RV dysfunction.
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Affiliation(s)
- Ibrahim Yildiz
- Department of Cardiology, Adana Çukurova State Hosipital, Adana, Turkey
| | | | | | | | | | - Yavuz Karabag
- Department of Cardiology, Faculty of Medicine, Kafkas University, Kars, Turkey
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14
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Krebs J, Mansi T, Delingette H, Lou B, Lima JAC, Tao S, Ciuffo LA, Norgard S, Butcher B, Lee WH, Chamera E, Dickfeld TM, Stillabower M, Marine JE, Weiss RG, Tomaselli GF, Halperin H, Wu KC, Ashikaga H. CinE caRdiac magneTic resonAnce to predIct veNTricular arrhYthmia (CERTAINTY). Sci Rep 2021; 11:22683. [PMID: 34811411 PMCID: PMC8608832 DOI: 10.1038/s41598-021-02111-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 11/10/2021] [Indexed: 12/24/2022] Open
Abstract
Better models to identify individuals at low risk of ventricular arrhythmia (VA) are needed for implantable cardioverter-defibrillator (ICD) candidates to mitigate the risk of ICD-related complications. We designed the CERTAINTY study (CinE caRdiac magneTic resonAnce to predIct veNTricular arrhYthmia) with deep learning for VA risk prediction from cine cardiac magnetic resonance (CMR). Using a training cohort of primary prevention ICD recipients (n = 350, 97 women, median age 59 years, 178 ischemic cardiomyopathy) who underwent CMR immediately prior to ICD implantation, we developed two neural networks: Cine Fingerprint Extractor and Risk Predictor. The former extracts cardiac structure and function features from cine CMR in a form of cine fingerprint in a fully unsupervised fashion, and the latter takes in the cine fingerprint and outputs disease outcomes as a cine risk score. Patients with VA (n = 96) had a significantly higher cine risk score than those without VA. Multivariate analysis showed that the cine risk score was significantly associated with VA after adjusting for clinical characteristics, cardiac structure and function including CMR-derived scar extent. These findings indicate that non-contrast, cine CMR inherently contains features to improve VA risk prediction in primary prevention ICD candidates. We solicit participation from multiple centers for external validation.
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Affiliation(s)
- Julian Krebs
- Digital Technology and Innovation Division, Siemens Healthineers, Princeton, NJ, USA
- Université Côte d'Azur, Inria, Epione Team, Sophia Antipolis, France
| | - Tommaso Mansi
- Digital Technology and Innovation Division, Siemens Healthineers, Princeton, NJ, USA
| | - Hervé Delingette
- Université Côte d'Azur, Inria, Epione Team, Sophia Antipolis, France
| | - Bin Lou
- Digital Technology and Innovation Division, Siemens Healthineers, Princeton, NJ, USA
| | - Joao A C Lima
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Susumu Tao
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA
| | - Luisa A Ciuffo
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA
| | - Sanaz Norgard
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA
| | - Barbara Butcher
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA
| | - Wei H Lee
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA
| | - Ela Chamera
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA
| | | | | | - Joseph E Marine
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA
| | - Robert G Weiss
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA
| | | | - Henry Halperin
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA
| | - Katherine C Wu
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA
| | - Hiroshi Ashikaga
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe Street, Carnegie 568, Baltimore, MD, 21287, USA.
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15
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Clinical impact of visually assessed right ventricular dysfunction in patients with septic shock. Sci Rep 2021; 11:18823. [PMID: 34552188 PMCID: PMC8458318 DOI: 10.1038/s41598-021-98397-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 09/06/2021] [Indexed: 12/18/2022] Open
Abstract
We retrospectively analyzed data from the Medical Information Mart for Intensive Care-III critical care database to determine whether visually-assessed right ventricular (RV) dysfunction was associated with clinical outcomes in septic shock patients. Associations between visually-assessed RV dysfunction by echocardiography and in-hospital mortality, lethal arrhythmia, and hemodynamic indicators to determine the prognostic value of RV dysfunction in patients with septic shock were analyzed. Propensity score analysis showed RV dysfunction was associated with increased risk of in-hospital death in patients with septic shock (adjusted odds ratio [OR] 2.15; 95% confidence interval [CI] 1.99–2.32; P < 0.001). In multivariate logistic regression analysis, RV dysfunction was associated with in-hospital death (OR 2.19; 95% CI 1.91–2.53; P < 0.001), lethal arrhythmia (OR 2.19; 95% CI 1.34–3.57; P < 0.001), and tendency for increased blood lactate levels (OR 1.31; 95% CI 1.14–1.50; P < 0.001) independent of left ventricular (LV) dysfunction. RV dysfunction was associated with lower cardiac output, pulmonary artery pressure index, and RV stroke work index. In patients with septic shock, visually-assessed RV dysfunction was associated with in-hospital mortality, lethal arrhythmia, and circulatory insufficiency independent of LV dysfunction. Visual assessment of RV dysfunction using echocardiography might help to identify the short-term prognosis of patients with septic shock by reflecting hemodynamic status.
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16
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Truong VT, Ngo TNM, Mazur J, Nguyen HTM, Pham TTM, Palmer C, Pham KNP, Phan HT, Lee KS, Bannehr M, Butter C, Gyoten T, Chung ES. Right ventricular dysfunction and tricuspid regurgitation in functional mitral regurgitation. ESC Heart Fail 2021; 8:4988-4996. [PMID: 34551208 PMCID: PMC8712790 DOI: 10.1002/ehf2.13558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 07/06/2021] [Accepted: 07/28/2021] [Indexed: 11/08/2022] Open
Abstract
AIM The objective of this study was to investigate the prognostic importance of right ventricular dysfunction (RVD) and tricuspid regurgitation (TR) in patients with moderate-severe functional mitral regurgitation (FMR) receiving MitraClip procedure. RVD and TR grade are associated with cardiovascular mortality in the general population and other cardiovascular diseases. However, there are limited data from observational studies on the prognostic significance of RVD and TR in FMR receiving MitraClip procedure. METHODS AND RESULTS A systemic review and meta-analysis were performed using MEDLINE, Scopus, and Embase to assess the prognostic value of RVD and TR grade for mortality in patients with functional mitral regurgitation (FMR) receiving MitraClip procedure. Hazard ratios were extracted from multivariate models reporting on the association of RVD and TR with mortality and described as pooled estimates with 95% confidence intervals. A total of eight non-randomized studies met the inclusion criteria with seven studies having at least 12 months follow-up with a mean follow-up of 20.9 months. Among the aforementioned studies, a total of 1112 patients (71.5% being male) were eligible for being included in our meta-analysis with an overall mortality rate of 28.4% (n = 316). Of the enrolled patients, RVD was present in 46.1% and moderate-severe TR in 29.2%. RVD was significantly associated with mortality compared to normal RV function (HR, 1.79, 95% CI, 1.39-2.31, P < 0.001, I2 = 0). Patients with moderate-severe TR showed increased risk of mortality compared with those in the none-mild TR group (HR, 1.61. 95% CI, 1.11-2.33, P = 0.01, I2 = 14). CONCLUSIONS This meta-analysis demonstrates the prognostic importance of RVD and TR grade in predicting all-cause mortality in patients with significant FMR. RV function and TR parameters may therefore be useful in the risk stratification of patients with significant FMR undergoing MitraClip procedure.
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Affiliation(s)
- Vien T Truong
- The Christ Hospital Health Network, 2139 Auburn Ave, Cincinnati, OH, 45219, USA.,The Sue and Bill Butler Research Fellow, The Linder Research Center, Cincinnati, OH, USA
| | - Tam N M Ngo
- The Christ Hospital Health Network, 2139 Auburn Ave, Cincinnati, OH, 45219, USA.,Pham Ngoc Thach University of Medicine, Ho Chi Minh city, Vietnam
| | - Jan Mazur
- The Ohio State University, Columbus, OH, USA
| | - Hoai T M Nguyen
- Pham Ngoc Thach University of Medicine, Ho Chi Minh city, Vietnam
| | - Thuy T M Pham
- Heart Center, Tam Anh General Hospital, Ho Chi Minh City, Vietnam
| | - Cassady Palmer
- The Christ Hospital Health Network, 2139 Auburn Ave, Cincinnati, OH, 45219, USA
| | | | - Hoang T Phan
- Pham Ngoc Thach University of Medicine, Ho Chi Minh city, Vietnam.,Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Kwan S Lee
- Sarver Heart Center, Department of Medicine, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Marwin Bannehr
- Heart Center Brandenburg in Bernau/Berlin, Department of Cardiology & Brandenburg, Medical School Theodor Fontane, Neuruppin, Germany
| | - Christian Butter
- Heart Center Brandenburg in Bernau/Berlin, Department of Cardiology & Brandenburg, Medical School Theodor Fontane, Neuruppin, Germany
| | | | - Eugene S Chung
- The Christ Hospital Health Network, 2139 Auburn Ave, Cincinnati, OH, 45219, USA
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17
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Naeije R. Simple imaging of the right heart phenotype in heart failure. Eur Heart J Cardiovasc Imaging 2021; 22:177-178. [PMID: 33188685 DOI: 10.1093/ehjci/jeaa302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Robert Naeije
- Department of Pathophysiology, Faculty of Medicine, Free University of Brussels, 808 Lennik Road, B-1070 Brussels, Belgium
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18
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Abstract
The number of rTOF patients who survive into adulthood is steadily rising, with currently more than 90% reaching the third decade of life. However, rTOF patients are not cured, but rather have a lifelong increased risk for cardiac and non-cardiac complications. Heart failure is recognized as a significant complication. Its occurrence is strongly associated with adverse outcome. Unfortunately, conventional concepts of heart failure may not be directly applicable in this patient group. This article presents a review of the current knowledge on HF in rTOF patients, including incidence and prevalence, the most common mechanisms of heart failure, i.e., valvular pathologies, shunt lesions, left atrial hypertension, primary left heart and right heart failure, arrhythmias, and coronary artery disease. In addition, we will review information regarding extracardiac complications, risk factors for the development of heart failure, clinical impact and prognosis, and assessment possibilities, particularly of the right ventricle, as well as management strategies. We explore potential future concepts that may stimulate further research into this field.
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19
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Sugita J, Fujiu K, Nakayama Y, Matsubara T, Matsuda J, Oshima T, Liu Y, Maru Y, Hasumi E, Kojima T, Seno H, Asano K, Ishijima A, Tomii N, Yamazaki M, Kudo F, Sakuma I, Nagai R, Manabe I, Komuro I. Cardiac macrophages prevent sudden death during heart stress. Nat Commun 2021; 12:1910. [PMID: 33771995 PMCID: PMC7997915 DOI: 10.1038/s41467-021-22178-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 02/27/2021] [Indexed: 12/21/2022] Open
Abstract
Cardiac arrhythmias are a primary contributor to sudden cardiac death, a major unmet medical need. Because right ventricular (RV) dysfunction increases the risk for sudden cardiac death, we examined responses to RV stress in mice. Among immune cells accumulated in the RV after pressure overload-induced by pulmonary artery banding, interfering with macrophages caused sudden death from severe arrhythmias. We show that cardiac macrophages crucially maintain cardiac impulse conduction by facilitating myocardial intercellular communication through gap junctions. Amphiregulin (AREG) produced by cardiac macrophages is a key mediator that controls connexin 43 phosphorylation and translocation in cardiomyocytes. Deletion of Areg from macrophages led to disorganization of gap junctions and, in turn, lethal arrhythmias during acute stresses, including RV pressure overload and β-adrenergic receptor stimulation. These results suggest that AREG from cardiac resident macrophages is a critical regulator of cardiac impulse conduction and may be a useful therapeutic target for the prevention of sudden death.
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MESH Headings
- Amphiregulin/metabolism
- Amphiregulin/physiology
- Animals
- Animals, Newborn
- Arrhythmias, Cardiac/complications
- Cells, Cultured
- Death, Sudden, Cardiac/etiology
- Death, Sudden, Cardiac/prevention & control
- Female
- Gap Junctions/physiology
- HeLa Cells
- Humans
- Macrophages/metabolism
- Macrophages/physiology
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Myocardium/cytology
- Myocardium/metabolism
- Myocytes, Cardiac/cytology
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/physiology
- Receptors, Adrenergic, beta/metabolism
- Mice
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Affiliation(s)
- Junichi Sugita
- Department of Cardiovascular Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Katsuhito Fujiu
- Department of Cardiovascular Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
- Department of Advanced Cardiology, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama, 332-0012, Japan.
| | - Yukiteru Nakayama
- Department of Cardiovascular Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takumi Matsubara
- Department of Cardiovascular Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Jun Matsuda
- Department of Cardiovascular Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tsukasa Oshima
- Department of Cardiovascular Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yuxiang Liu
- Department of Cardiovascular Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yujin Maru
- Department of Cardiovascular Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Eriko Hasumi
- Department of Cardiovascular Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Toshiya Kojima
- Department of Cardiovascular Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Hiroshi Seno
- Medical Device Development and Regulation Research Center, Department of Bioengineering/Department of Precision Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Keisuke Asano
- Medical Device Development and Regulation Research Center, Department of Bioengineering/Department of Precision Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Ayumu Ishijima
- Medical Device Development and Regulation Research Center, Department of Bioengineering/Department of Precision Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Naoki Tomii
- Medical Device Development and Regulation Research Center, Department of Bioengineering/Department of Precision Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Masatoshi Yamazaki
- Medical Device Development and Regulation Research Center, Department of Bioengineering/Department of Precision Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Fujimi Kudo
- Department of Disease Biology and Molecular Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8670, Japan
| | - Ichiro Sakuma
- Medical Device Development and Regulation Research Center, Department of Bioengineering/Department of Precision Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Ryozo Nagai
- Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-shi, Tochigi-ken, Tochigi, 329-0498, Japan
| | - Ichiro Manabe
- Department of Disease Biology and Molecular Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8670, Japan.
| | - Issei Komuro
- Department of Cardiovascular Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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20
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Berger SG, Sjaastad I, Stokke MK. Right ventricular involvement in hypertrophic cardiomyopathy: evidence and implications from current literature. SCAND CARDIOVASC J 2021; 55:195-204. [PMID: 33759664 DOI: 10.1080/14017431.2021.1901979] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Objectives. In current guidelines, hypertrophic cardiomyopathy (HCM) is defined by hypertrophy of the left ventricle (LV). Less attention has been given to the right ventricle (RV) in patients with HCM. We wanted to provide an overview of current literature on RV involvement in HCM. Design. We performed a systematic search in PubMed and added additional articles by manual screening of references. The quality of the articles was assessed according to the GRADE system. Results. We identified 35 original articles on RV involvement in HCM. Based on these publications, RV hypertrophy occurs in 28-44% of HCM patients, depending on the cut-off value for hypertrophy and the method for assessment. Histological studies show the same structural changes in RV as are typically described in the LV cardiomyocyte hypertrophy and disarray, as well as fibrosis. These changes are similar, but less pronounced in the RV than in the LV. We discuss how HCM can impact the RV, either through a primary involvement similar to the LV or secondary to hemodynamic effects resulting from LV dysfunction. RV dysfunction in HCM is associated with higher mortality, partly due to an increased risk of ventricular tachycardia and sudden cardiac death. Conclusions. The evidence for RV involvement in HCM is limited. Multimodal imaging assessment of the RV should be included in the work-up of patients with HCM, and the added value of including RV function in the risk stratification algorithm should be further explored.
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Affiliation(s)
- Simon Girmai Berger
- Institute for Experimental Medical Research, Oslo University Hospital, University of Oslo, Oslo, Norway.,KG Jebsen Cardiac Research Centre, University of Oslo, Oslo, Norway
| | - Ivar Sjaastad
- Institute for Experimental Medical Research, Oslo University Hospital, University of Oslo, Oslo, Norway.,KG Jebsen Cardiac Research Centre, University of Oslo, Oslo, Norway
| | - Mathis Korseberg Stokke
- Institute for Experimental Medical Research, Oslo University Hospital, University of Oslo, Oslo, Norway.,KG Jebsen Cardiac Research Centre, University of Oslo, Oslo, Norway.,Department of Cardiology, Oslo University Hospital, Oslo, Norway
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21
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Rohde LE, Vaduganathan M, Claggett BL, Polanczyk CA, Dorbala P, Packer M, Desai AS, Zile M, Rouleau J, Swedberg K, Lefkowitz M, Shi V, McMurray JJV, Solomon SD. Dynamic changes in cardiovascular and systemic parameters prior to sudden cardiac death in heart failure with reduced ejection fraction: a PARADIGM-HF analysis. Eur J Heart Fail 2021; 23:1346-1356. [PMID: 33565237 DOI: 10.1002/ejhf.2120] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/02/2021] [Accepted: 02/02/2021] [Indexed: 12/16/2022] Open
Abstract
AIMS Prognostic models of sudden cardiac death (SCD) typically incorporate data at only a single time-point. We investigated independent predictors of SCD addressing the impact of integrating time-varying covariates to improve prediction assessment. METHODS AND RESULTS We studied 8399 patients enrolled in the PARADIGM-HF trial and identified independent predictors of SCD (n = 561, 36% of total deaths) using time-updated multivariable-adjusted Cox models, classification and regression tree (CART), and logistic regression analysis. Compared with patients who were alive or died from non-sudden cardiovascular deaths, patients who suffered a SCD displayed a distinct temporal profile of New York Heart Association (NYHA) class, heart rate and levels of three biomarkers (albumin, uric acid and total bilirubin), with significant differences observed more than 1 year prior to the event (Pinteraction < 0.001). In multivariable models adjusted for baseline covariates, seven time-updated variables independently contributed to SCD risk (incremental likelihood chi-square = 46.2). CART analysis identified that baseline variables (implantable cardioverter-defibrillator use and N-terminal prohormone of B-type natriuretic peptide levels) and time-updated covariates (NYHA class, total bilirubin, and total cholesterol) improved risk stratification. CART-defined subgroup of highest risk had nearly an eightfold increment in SCD hazard (hazard ratio 7.7, 95% confidence interval 3.6-16.5; P < 0.001). Finally, changes over time in heart rate, NYHA class, blood urea nitrogen and albumin levels were associated with differential risk of sudden vs. non-sudden cardiovascular deaths (P < 0.05). CONCLUSIONS Beyond single time-point assessments, distinct changes in multiple cardiac-specific and systemic variables improved SCD risk prediction and were helpful in differentiating mode of death in chronic heart failure.
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Affiliation(s)
- Luis E Rohde
- Division of Cardiovascular, Brigham and Women's Hospital, Boston, MA, USA.,Hospital de Clínicas de Porto Alegre and UFRGS Medical School, Porto Alegre, Brazil
| | | | - Brian L Claggett
- Division of Cardiovascular, Brigham and Women's Hospital, Boston, MA, USA
| | - Carisi A Polanczyk
- Division of Cardiovascular, Brigham and Women's Hospital, Boston, MA, USA.,Hospital de Clínicas de Porto Alegre and UFRGS Medical School, Porto Alegre, Brazil
| | - Pranav Dorbala
- Division of Cardiovascular, Brigham and Women's Hospital, Boston, MA, USA
| | - Milton Packer
- Baylor Heart and Vascular Institute, Baylor University Medical Center, Dallas, TX, USA
| | - Akshay S Desai
- Division of Cardiovascular, Brigham and Women's Hospital, Boston, MA, USA
| | - Michael Zile
- Medical University of South Carolina and Ralph H. Johnson Veterans Administration Medical Center, Charleston, SC, USA
| | - Jean Rouleau
- Institut de Cardiologie de Montréal, Université de Montréal, Montreal, Canada
| | - Karl Swedberg
- Department of Molecular and Clinical Medicine, University of Gothenburg, Sweden, London, UK
| | | | | | - John J V McMurray
- BHF Cardiovascular Research Centre, University of Glasgow, Glasgow, UK
| | - Scott D Solomon
- Division of Cardiovascular, Brigham and Women's Hospital, Boston, MA, USA
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22
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Subramani S, Sharma A, Arora L, Hanada S, Krishnan S, Ramakrishna H. Perioperative Right Ventricular Dysfunction: Analysis of Outcomes. J Cardiothorac Vasc Anesth 2021; 36:309-320. [PMID: 33593648 DOI: 10.1053/j.jvca.2021.01.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 11/11/2022]
Abstract
Right ventricular dysfunction (RVD) is a well-known prognostic factor for adverse outcomes in cardiovascular medicine. The right ventricle (RV) in medically managed heart failure patients and in surgical patients perioperatively generally is overshadowed by left ventricular disease. However, with advancement of various diagnostic tools and better understanding of its functional anatomy, the role of the RV is emerging in many clinical conditions. The failure of one ventricle has significant effect on the function of the other ventricle and it is predominantly due to ventricular interdependence.1 The etiology of RVD is multifactorial and irrespective of etiology. RVD has been associated with significant increases in morbidity and mortality in various clinical scenarios.2,3 The primary objective of this comprehensive review is to analyze various etiology-related outcomes of RVD in the perioperative population.
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Affiliation(s)
- Sudhakar Subramani
- Department of Anesthesia, University of Iowa Carver College of Medicine, Iowa City, IA
| | - Archit Sharma
- Department of Anesthesia, University of Iowa Carver College of Medicine, Iowa City, IA
| | - Lovkesh Arora
- Department of Anesthesia, University of Iowa Carver College of Medicine, Iowa City, IA
| | - Satoshi Hanada
- Department of Anesthesia, University of Iowa Carver College of Medicine, Iowa City, IA
| | - Sundar Krishnan
- Department of Anesthesia, Duke University School of Medicine, Durham, NC
| | - Harish Ramakrishna
- Division of Cardiovascular and Thoracic Anesthesiology, Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN.
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23
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Sanders JL, Koestenberger M, Rosenkranz S, Maron BA. Right ventricular dysfunction and long-term risk of death. Cardiovasc Diagn Ther 2020; 10:1646-1658. [PMID: 33224778 DOI: 10.21037/cdt-20-450] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Sudden cardiac death (SCD), or sudden loss of life-sustaining systemic and cerebral perfusion, is most often due to left ventricular (LV) dysfunction secondary to ischemic or structural cardiac disease or channelopathies. Degeneration of sinus rhythm into ventricular tachycardia and ultimately ventricular fibrillation is the final common pathway for most heart failure patients. Right ventricular (RV) dysfunction is recognized as an independent contributor to worsening heart failure. There is emerging evidence that RV dysfunction may also be an independent predictor of SCD. This review examines the role of RV dysfunction on modifying long term risk of SCD, and explores possible mechanisms that may underlie SCD. The RV has unique anatomy and physiology compared to the LV. Subsequently, we begin with a review of cardiac embryology, focusing on the chambers, valves, coronary arteries, and cardiac conduction system to understand the origins of RV dysfunction. Static and dynamic physiology of the RV is contrasted with that of the LV. Particular emphasis is placed on ventriculo-arterial coupling, mechanical cardiac constraint, and ventricular interdependence. The epidemiology of SCD is briefly reviewed to highlight how causes of SCD are age-specific. In turn, the age-specific causes of RV dysfunction are presented, including those which predominate in childhood and adolescence [arrhythmogenic RV dysplasia (ARVD) and hypertrophic cardiomyopathy (HCM)] and older adulthood (cardiac ischemia, chronic congestive heart failure and post-capillary pulmonary hypertension, and pulmonary hypertension). There is a clear need for additional studies on the independent contribution of RV dysfunction to overall functional capacity, SCD-associated mortality, and non-SCD-associated mortality. Discovery would be aided by the development of prospective cohorts with excellent RV phenotyping, coupled with deeper biologic measurements linking mechanisms to clinically relevant outcomes.
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Affiliation(s)
- Jason L Sanders
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Martin Koestenberger
- Divison of Pediatric Cardiology, Department of Pediatrics, Medical University Graz, Graz, Austria
| | - Stephan Rosenkranz
- Clinic III for Internal Medicine (Cardiology) and Cologne Cardiovascular Research Center, Heart Center at the University of Cologne, Cologne, Germany
| | - Bradley A Maron
- Division of Cardiovascular Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
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24
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Planek MIC, Manshad A, Hein K, Hemu M, Ballout F, Varandani R, Venugopal P, Okwuosa T. Prediction of doxorubicin cardiotoxicity by early detection of subclinical right ventricular dysfunction. CARDIO-ONCOLOGY (LONDON, ENGLAND) 2020; 6:10. [PMID: 32714566 PMCID: PMC7376704 DOI: 10.1186/s40959-020-00066-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/15/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Doxorubicin remains one of the most common causes of cardiotoxicity in patients with lymphoma, leading to significant morbidity and mortality. Early decline in left ventricular (LV) ejection fraction predicts chemotherapy-induced cardiotoxicity and mortality, but limited data exist on doxorubicin-induced subclinical right ventricular (RV) dysfunction. We investigated dose-dependent subclinical doxorubicin-induced RV dysfunction in lymphoma patients. METHODS Thirty-five patients with adult lymphoma treated with doxorubicin were studied. All patients had normal baseline LV ejection fraction (LVEF > 55%), and no known cardiopulmonary disease. We studied the dose-dependent effect of doxorubicin on RV strain by 2D speckle-tracking echocardiography (STE) using a vendor-independent software (TomTec). Images were analyzed offline by two independent observers blinded to the clinical characteristics of the study population. Baseline LVEF, RV fractional area change (RV FAC), RV free wall strain (RV FWS), and RV global longitudinal strain (RV GLS) were measured prior to chemotherapy initiation and compared with echo studies obtained at a 6-month follow-up interval. Patients served as their own controls. Comparisons between pre- and post-therapy were achieved using paired Student's t-tests or Chi-Square test. RESULTS The Interobserver Intraclass Correlation Coefficient for RV GLS, RV FAC and RV FWS, was 0.87, 0.81 and 0.79, respectively. The mean age was 51 ± 13 years, 40% women, 60% white. The mean cumulative doxorubicin dose was 239 ± 104 mg m- 2. There was there was significant decline in RV FAC (47.3 ± 4.4% vs. 43.7 ± 3.9%), RV FWS (- 24.9 ± 3.3 vs. -22.2 ± 2.9), and RV GLS (- 22.4 ± 4.1 vs. -20.6 ± 3.4) (all p < 0.01); but no significant decline in LVEF during the 6-month follow up (63.3 ± 6.2% vs. 61.6 ± 11.1%, p = 0.374). At cumulative doxorubicin dose ≥200 mg m- 2 we found a significant decline in RV FAC (47.0 ± 4.7% vs. 42.2 ± 3.1%, p < 0.01), RV FWS (- 24.6 ± 3.6 vs. -21.5 ± 2.4, p < 0.01), and RV GLS (- 22.3 ± 4.5 vs. -20.1 ± 2.9, p = 0.03). CONCLUSION In this cohort of adult lymphoma patients, doxorubicin-based therapy was associated with subclinical RV dysfunction, but not LV dysfunction, at a cumulative dose ≥200 mg m- 2. Additional studies evaluating the long-term prognostic implications of RV dysfunction in this population are essential.
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Affiliation(s)
| | - Ahmad Manshad
- Division of Cardiology, Loyola University Medical Center, Maywood, IL 60153 USA
| | - Kyaw Hein
- Department of Medicine, Rush University Medical Center, Chicago, IL 60612 USA
| | - Mohamad Hemu
- Department of Medicine, Rush University Medical Center, Chicago, IL 60612 USA
| | - Fatima Ballout
- Division of Nephrology, Rush University Medical Center, Chicago, IL 60612 USA
| | - Rajiv Varandani
- Chicago College of Osteopathic Medicine at Midwestern University, Downers Grove, IL 60515 USA
| | | | - Tochukwu Okwuosa
- Division of Cardiology, Rush University Medical Center, Chicago, IL 60612 USA
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25
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Taverne YJHJ, Sadeghi A, Bartelds B, Bogers AJJC, Merkus D. Right ventricular phenotype, function, and failure: a journey from evolution to clinics. Heart Fail Rev 2020; 26:1447-1466. [PMID: 32556672 PMCID: PMC8510935 DOI: 10.1007/s10741-020-09982-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The right ventricle has long been perceived as the "low pressure bystander" of the left ventricle. Although the structure consists of, at first glance, the same cardiomyocytes as the left ventricle, it is in fact derived from a different set of precursor cells and has a complex three-dimensional anatomy and a very distinct contraction pattern. Mechanisms of right ventricular failure, its detection and follow-up, and more specific different responses to pressure versus volume overload are still incompletely understood. In order to fully comprehend right ventricular form and function, evolutionary biological entities that have led to the specifics of right ventricular physiology and morphology need to be addressed. Processes responsible for cardiac formation are based on very ancient cardiac lineages and within the first few weeks of fetal life, the human heart seems to repeat cardiac evolution. Furthermore, it appears that most cardiogenic signal pathways (if not all) act in combination with tissue-specific transcriptional cofactors to exert inductive responses reflecting an important expansion of ancestral regulatory genes throughout evolution and eventually cardiac complexity. Such molecular entities result in specific biomechanics of the RV that differs from that of the left ventricle. It is clear that sole descriptions of right ventricular contraction patterns (and LV contraction patterns for that matter) are futile and need to be addressed into a bigger multilayer three-dimensional picture. Therefore, we aim to present a complete picture from evolution, formation, and clinical presentation of right ventricular (mal)adaptation and failure on a molecular, cellular, biomechanical, and (patho)anatomical basis.
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Affiliation(s)
- Yannick J H J Taverne
- Department of Cardiothoracic Surgery, Erasmus University Medical Center, Room Rg627, Dr. Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands. .,Division of Experimental Cardiology, Department of Cardiology, Erasmus University Medical Center, Rotterdam, The Netherlands. .,Unit for Cardiac Morphology and Translational Electrophysiology, Erasmus University Medical Center, Rotterdam, The Netherlands.
| | - Amir Sadeghi
- Department of Cardiothoracic Surgery, Erasmus University Medical Center, Room Rg627, Dr. Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands
| | - Beatrijs Bartelds
- Division of Pediatrics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Ad J J C Bogers
- Department of Cardiothoracic Surgery, Erasmus University Medical Center, Room Rg627, Dr. Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands
| | - Daphne Merkus
- Division of Experimental Cardiology, Department of Cardiology, Erasmus University Medical Center, Rotterdam, The Netherlands
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26
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Abstract
Heart failure (HF) with preserved ejection fraction (HFpEF) represents half of HF patients, who are more likely older, women, and hypertensive. Mortality rates in HFpEF are higher compared with age- and comorbidity-matched non-HF controls and lower than in HF with reduced ejection fraction (HFrEF); the majority (50-70%) are cardiovascular (CV) deaths. Among CV deaths, sudden death (SD) (~ 35%) and HF-death (~ 20%) are the leading cardiac modes of death; however, proportionally, CV deaths, SD, and HF-deaths are lower in HFpEF, while non-CV deaths constitute a higher proportion of deaths in HFpEF (30-40%) than in HFrEF (~ 15%). Importantly, the underlying mechanism of SD has not been clearly elucidated and non-arrhythmic SD may be more prominent in HFpEF than in HFrEF. Furthermore, there is no specific strategy for identifying high-risk patients, probably due to wide heterogeneity in presentation and pathophysiology of HFpEF and a plethora of comorbidities in this population. Thus, the management of HFpEF remains problematic due to paucity of data on the clinical benefits of current therapies, which focus on symptom relief and reduction of HF-hospitalization by controlling fluid retention and managing risk-factors and comorbidities. Matching a specific pathophysiology or mode of death with available and novel therapies may improve outcomes in HFpEF. However, this still remains an elusive target, as we need more information on determinants of SD. Implantable cardioverter-defibrillators (ICDs) have changed the landscape of SD prevention in HFrEF; if ICDs are to be applied to HFpEF, there must be a coordinated effort to identify and select high-risk patients.
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27
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Guazzi M. The alarming association between right ventricular dysfunction and outcome: aetiology matters. Eur Heart J 2020; 41:1283-1285. [PMID: 32091091 DOI: 10.1093/eurheartj/ehaa080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Abstract
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Affiliation(s)
- Marco Guazzi
- Cardiology University Department and Heart Failure Unit, University of Milano School of Medicine, I.R.C.C.S. Policlinico San Donato, Piazza Malan, 1, 20097, San Donato Milanese, Milano, Italy
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28
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Gebhardt BR, Asher S, Maslow A. The Limitations of Using Transthoracic Echocardiographic-Derived Normative Values for Grading Intraoperative Transesophageal Echocardiography Examinations of the Right Ventricle: Are They Really Interchangeable? J Cardiothorac Vasc Anesth 2020; 34:1260-1262. [PMID: 32178955 DOI: 10.1053/j.jvca.2020.02.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 02/13/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Brian R Gebhardt
- Department of Anesthesiology and Perioperative Medicine, Tufts Medical Center, Boston, MA; Anesthesia Associates of New Mexico, Albuquerque, NM.
| | - Shyamal Asher
- Department of Anesthesiology, Rhode Island Hospital, Lifespan Medical Center Warren Alpert School of Medicine at Brown University, Providence Rhode Island
| | - Andrew Maslow
- Department of Anesthesiology, Rhode Island Hospital, Lifespan Medical Center Warren Alpert School of Medicine at Brown University, Providence Rhode Island
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29
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Pandat S, Nagaura T, Nair SG, Uy-Evanado A, Stecker EC, Nichols GA, Jui J, Shiota T, Chugh SS, Reinier K. An association between right ventricular dysfunction and sudden cardiac death. Heart Rhythm 2019; 17:169-174. [PMID: 31634617 DOI: 10.1016/j.hrthm.2019.10.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND The effectiveness of severely reduced left ventricular ejection fraction (LVEF <35%) as a predictor of sudden cardiac death (SCD) has diminished, and improvements in risk stratification await discovery of novel markers. Right ventricular (RV) abnormalities can be observed in conditions such as chronic obstructive pulmonary disease and sleep apnea, which have been linked to SCD. OBJECTIVE The purpose of this study was to evaluate whether RV abnormalities were associated with SCD after accounting for LVEF and other patient characteristics. METHODS In a large, prospective ongoing community-based study of SCD in the Portland, Oregon, metropolitan area, SCD cases (age ≥18 years; 2002-2014) were compared to controls with coronary artery disease but no SCD. Using a novel archive of digital echocardiograms, a standardized approach was used to evaluate RV basal diameter, RV end-diastolic area, and right ventricular fractional area change (RVFAC). RESULTS A total of 350 subjects were studied, including 81 SCD cases (age 68.7 ± 13.6 years; 73% male) and 269 controls (age 66.5 ± 10.2 years; 69% male). In multivariate analysis, RVFAC was significantly associated with SCD (odds ratio 1.14 for each 5% decrease; 95% confidence interval 1.03-1.25; P = .01). When modeled with LVEF ≤35%, RVFAC ≤35% was significantly associated with increased risk of SCD. Individuals with both left ventricular and RV dysfunction had a 3× higher odds of SCD than those with neither (odds ratio 3.19; 95% confidence interval 1.33-7.68; P = .01). CONCLUSION RV dysfunction was associated with a significantly increased risk of SCD independent of LVEF and, when combined with LVEF, had additive effects on SCD risk.
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Affiliation(s)
- Summit Pandat
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Takafumi Nagaura
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Sandeep G Nair
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Audrey Uy-Evanado
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Eric C Stecker
- Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon
| | | | - Jonathan Jui
- Department of Emergency Medicine, Oregon Health & Science University, Portland, Oregon
| | - Takahiro Shiota
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Sumeet S Chugh
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Kyndaron Reinier
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California.
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30
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Right Ventricular Function and Sexual Function: Exploring Shadows in Male and Female Patients With Heart Failure. J Sex Med 2019; 16:1199-1211. [PMID: 31133422 DOI: 10.1016/j.jsxm.2019.04.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/16/2019] [Accepted: 04/20/2019] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Sexual health plays an important role in heart failure (HF) patients, and the relationship between HF and sexual dysfunction is well established; however, the role of right ventricular function in sexual dysfunction has not been investigated sufficiently. AIM To investigate the potential association between right ventricular dysfunction and sexual dysfunction in both male and female patients with HF. METHODS Patients with a clinical diagnosis of HF were evaluated in a cross-sectional study. Patients from the whole spectrum of HF were included in the study, regardless of cause, duration, and classification of HF. Sexual function in men was evaluated with the International Index of Erectile Function and in women with the Female Sexual Functioning Index. MAIN OUTCOME MEASURES We demonstrate that right ventricular dysfunction is associated with worse sexual function in both men and women. RESULTS 306 consecutive patients with HF participated in the study. Right ventricular systolic dysfunction ranged from 24.2-39.1% and right ventricular diastolic dysfunction from 16.1-83.1%, depending on the echocardiographic parameter that was assessed. Right ventricular systolic dysfunction assessed by tricuspid annular plane systolic excursion (TAPSE), TAPSE/pulmonary artery systolic pressure ratio, and right ventricular basal diameter was associated with a lower International Index of Erectile Function score (P = .031, P = .009, and P < .001, respectively). Multiple linear regression analysis revealed that erectile function was independently associated only with TAPSE/pulmonary artery systolic pressure ratio and tricuspid late tricuspid diastolic flow velocity wave (β = 32.84, P = .006; and β = -0.47, P = .026, respectively), whereas female sexual function was independently associated only with the early tricuspid diastolic flow velocity/late tricuspid diastolic flow velocity ratio (β= -0.47, P = .026). CLINICAL IMPLICATIONS Our study demonstrates that right ventricular dysfunction in patients with HF reflects an impaired sexual function status. Physicians should be aware of this association and closely evaluate those patients for sexual dysfunction. STRENGTHS & LIMITATIONS We innovatively assessed the correlation between right ventricular dysfunction and sexual function using validated questionnaires. The main limitation is the relatively small sample size. CONCLUSIONS Our study provides some new insights into the relationship between sexual dysfunction and right ventricular systolic and diastolic dysfunction in HF patients, also suggesting potential interventions to improve sexual and right ventricular function and prognosis in this population. Koutsampasopoulos K, Vogiatzis I, Ziakas A, et al. Right Ventricular Function and Sexual Function: Exploring Shadows in Male and Female Patients With Heart Failure. J Sex Med 2019;16:1199-1211.
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31
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Koshy SKG, George EK, George LK. Value of echocardiogram in predicting sudden cardiac death: A look beyond ejection fraction. Echocardiography 2019; 36:431-432. [DOI: 10.1111/echo.14298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Santhosh K. G. Koshy
- Department of Internal Medicine; Texas Tech University Health Sciences Center; Lubbock Texas
| | - Elizabeth K. George
- Department of Internal Medicine; Texas Tech University Health Sciences Center; Lubbock Texas
| | - Lekha K. George
- Department of Internal Medicine; Texas Tech University Health Sciences Center; Lubbock Texas
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