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Akamkam A, Galand V, Jungling M, Delmas C, Dambrin C, Pernot M, Kindo M, Gaudard P, Rouviere P, Senage T, Chavanon O, Para M, Gariboldi V, Pozzi M, Litzler PY, Babatasi G, Bouchot O, Radu C, Bourguignon T, D'Ostrevy N, Abi Akar R, Vanhuyse F, Gaillard M, Chatelier G, Fels A, Flecher E, Guihaire J. Association between pulmonary artery pulsatility and mortality after implantation of left ventricular assist device. ESC Heart Fail 2024. [PMID: 38581135 DOI: 10.1002/ehf2.14716] [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: 12/01/2023] [Revised: 01/10/2024] [Accepted: 01/18/2024] [Indexed: 04/08/2024] Open
Abstract
AIMS Right ventricular failure after left ventricular assist device (LVAD) implantation is a major concern that remains challenging to predict. We sought to investigate the relationship between preoperative pulmonary artery pulsatility index (PAPi) and mortality after LVAD implantation. METHODS AND RESULTS A retrospective analysis of the ASSIST-ICD multicentre registry allowed the assessment of PAPi before LVAD according to the formula [(systolic pulmonary artery pressure - diastolic pulmonary artery pressure)/central venous pressure]. The primary endpoint was survival at 3 months, according to the threshold value of PAPi determined by the receiver operating characteristic (ROC) curve. A multivariate analysis including demographic, echographic, haemodynamic, and biological variables was performed to identify predictive factors for 2 year mortality. One hundred seventeen patients were included from 2007 to 2021. The mean age was 58.45 years (±13.16), with 15.4% of women (sex ratio 5.5). A total of 53.4% were implanted as bridge to transplant and 43.1% as destination therapy. Post-operative right ventricular failure was observed in 57 patients (48.7%), with no significant difference between survivors and non-survivors at 1 month (odds ratio 1.59, P = 0.30). The median PAPi for the whole study population was 2.83 [interquartile range 1.63-4.69]. The threshold value of PAPi determined by the ROC curve was 2.84. Patients with PAPi ≥ 2.84 had a higher survival rate at 3 months [PAPi < 2.84: 58.1% [46.3-72.8%] vs. PAPi ≥ 2.84: 89.1% [81.1-97.7%], hazard ratio (HR) 0.08 [0.02-0.28], P < 0.01], with no significant difference after 3 months (HR 0.67 [0.17-2.67], P = 0.57). Other predictors of 2 year mortality were systemic hypertension (HR 4.22 [1.49-11.97], P < 0.01) and diabetes mellitus (HR 4.90 [1.83-13.14], P < 0.01). LVAD implantation as bridge to transplant (HR 0.18 [0.04-0.74], P = 0.02) and heart transplantation (HR 0.02 [0.00-0.18], P < 0.01) were associated with a higher survival rate at 2 years. CONCLUSIONS Preoperative PAPi < 2.84 was associated with a higher risk of early mortality after LVAD implantation without impacting 2 year outcomes among survivors.
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Affiliation(s)
- Ali Akamkam
- Department of Cardiovascular Surgery, Marie Lannelongue Hospital, Groupe Hospitalier Paris Saint Joseph, Le Plessis-Robinson, France
| | - Vincent Galand
- Department of Cardiology, University of Rennes, CHU Rennes, Rennes, France
| | - Marie Jungling
- Department of Cardiac Surgery, Lille University Hospital, Heart-Lung Institute, Lille, France
| | - Clément Delmas
- Department of Cardiology, University Hospital of Toulouse, Toulouse, France
| | - Camille Dambrin
- Department of Cardiovascular Surgery, University Hospital of Toulouse, Toulouse, France
| | - Mathieu Pernot
- Haut-Lévêque Cardiological Hospital, Bordeaux II University, Bordeaux, France
| | - Michel Kindo
- Department of Cardiovascular Surgery, University Hospitals of Strasbourg, Strasbourg, France
| | - Philippe Gaudard
- Department of Anesthesiology and Critical Care Medicine, PhyMedExp, University of Montpellier, INSERM, CNRS, CHU Montpellier, Montpellier, France
| | - Philippe Rouviere
- Department of Cardiac Surgery, University of Montpellier, CHU Montpellier, Montpellier, France
| | - Thomas Senage
- Department of Cardiology and Heart Transplantation Unit, CHU Nantes, Nantes, France
| | - Olivier Chavanon
- Department of Cardiology and Cardiovascular Surgery, CHU Michallon, Grenoble, France
| | - Marylou Para
- Department of Cardiology and Cardiac Surgery, Bichat-Claude Bernard Hospital, Paris, France
| | - Vlad Gariboldi
- Department of Cardiac Surgery, La Timone Hospital, Marseille, France
| | - Matteo Pozzi
- Department of Cardiac Surgery, 'Louis Pradel' Cardiologic Hospital, Lyon, France
| | - Pierre-Yves Litzler
- Department of Cardiology and Cardiovascular Surgery, Hospital Charles Nicolle, Rouen, France
| | - Gerard Babatasi
- Department of Cardiology and Cardiac Surgery, University of Caen and University Hospital of Caen, Caen, France
| | - Olivier Bouchot
- Department of Cardiology and Cardiac Surgery, University Hospital François Mitterrand, Dijon, France
| | - Costin Radu
- Department of Cardiology and Cardiac Surgery, AP-HP CHU Henri Mondor, Créteil, France
| | | | - Nicolas D'Ostrevy
- Department of Cardiac Surgery and Cardiology, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Ramzi Abi Akar
- Department of Cardiovascular Surgery, European Georges Pompidou Hospital, Paris, France
| | - Fabrice Vanhuyse
- Department of Cardiology and Cardiac Surgery, CHU de Nancy, Hôpitaux de Brabois, Nancy, France
| | - Maïra Gaillard
- Department of Cardiovascular Surgery, Marie Lannelongue Hospital, Groupe Hospitalier Paris Saint Joseph, Le Plessis-Robinson, France
| | - Gilles Chatelier
- Department of Clinical Research, Hôpital Paris Saint-Joseph, Groupe Hospitalier Paris Saint Joseph, Paris, France
| | - Audrey Fels
- Department of Clinical Research, Hôpital Paris Saint-Joseph, Groupe Hospitalier Paris Saint Joseph, Paris, France
| | - Erwan Flecher
- Department of Thoracic and Cardiovascular Surgery, University of Rennes, CHU Rennes, Rennes, France
| | - Julien Guihaire
- Department of Cardiovascular Surgery, Marie Lannelongue Hospital, Groupe Hospitalier Paris Saint Joseph, Le Plessis-Robinson, France
- School of Medicine, University of Paris Saclay, Le Kremlin-Bicêtre, France
- Inserm U999, Marie Lannelongue Hospital, Le Plessis-Robinson, France
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2
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Natarajan RK, Rodgers N, Narasimhan S, Ambrose M, Rothman A, Shyne M, Evans M, Aggarwal V. Invasive haemodynamics predict outcomes in paediatric pulmonary artery hypertension. Cardiol Young 2024:1-8. [PMID: 38572557 DOI: 10.1017/s1047951124000647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
BACKGROUND Invasive haemodynamics are often performed for initiating and guiding pulmonary artery hypertension therapy. Little is known about the predictive value of invasive haemodynamic indices for long-term outcomes in children with pulmonary artery hypertension. We aimed to evaluate invasive haemodynamic data to help predict outcomes in paediatric pulmonary artery hypertension. METHODS Patients with pulmonary artery hypertension who underwent cardiac catheterisation (2006-2019) at a single centre were included. Invasive haemodynamic data from the first cardiac catheterisation and clinical outcomes were reviewed. The combined adverse outcome was defined as pericardial effusion (due to right ventricle failure), creation of a shunt for pulmonary artery hypertension (atrial septal defect or reverse Pott's shunt), lung transplant, or death. RESULTS Among 46 patients with a median [interquartile range (IQR)] age of 13.2 [4.1-44.7] months, 76% had CHD. Median mean pulmonary artery pressure was 37 [28-52] mmHg and indexed pulmonary vascular resistance was 6.2 [3.6-10] Woods units × m2. Median pulmonary artery pulsatility index was 4.0 [3.0-4.7] and right ventricular stroke work index was 915 [715-1734] mmHg mL/m2. After a median follow-up of 2.4 years, nine patients had a combined adverse outcome (two had a pericardial effusion, one underwent atrial level shunt, one underwent reverse Pott's shunt, and six died). Patients with an adverse outcome had higher systolic and mean pulmonary artery pressures, higher diastolic and transpulmonary pressure gradients, higher indexed pulmonary vascular resistance, higher pulmonary artery elastance, and higher right ventricular stroke work index (p < 0.05 each). CONCLUSION Invasive haemodynamics (especially mean pulmonary artery pressure and diastolic pressure gradient) obtained at first cardiac catheterisation in children with pulmonary artery hypertension predicts outcomes.
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Affiliation(s)
| | - Nathan Rodgers
- Division of Pediatric Cardiology, University of Minnesota, Minneapolis, MN, USA
| | - Shanti Narasimhan
- Division of Pediatric Cardiology, University of Minnesota, Minneapolis, MN, USA
| | - Matthew Ambrose
- Division of Pediatric Cardiology, University of Minnesota, Minneapolis, MN, USA
| | - Abraham Rothman
- Children's Heart Center of Nevada, UNLV School of Medicine, Las Vegas, NV, USA
| | - Michael Shyne
- Clinical and Translational Science Institute, University of Minnesota, Minneapolis, MN, USA
| | - Michael Evans
- Clinical and Translational Science Institute, University of Minnesota, Minneapolis, MN, USA
| | - Varun Aggarwal
- Division of Pediatric Cardiology, University of Minnesota, Minneapolis, MN, USA
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3
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Javorski MJ, Bauza K, Xiang F, Soltesz E, Chen L, Bakaeen FG, Svensson L, Thuita L, Blackstone EH, Tong MZ. Identifying and mitigating risk of postcardiotomy cardiogenic shock in patients with ischemic and nonischemic cardiomyopathy. J Thorac Cardiovasc Surg 2024:S0022-5223(24)00191-0. [PMID: 38452888 DOI: 10.1016/j.jtcvs.2024.02.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/20/2024] [Accepted: 02/28/2024] [Indexed: 03/09/2024]
Abstract
OBJECTIVES To identify preoperative predictors of postcardiotomy cardiogenic shock in patients with ischemic and nonischemic cardiomyopathy and evaluate trajectory of postoperative ventricular function. METHODS From January 2017 to January 2020, 238 patients with ejection fraction <30% (206/238) or 30% to 34% with at least moderately severe mitral regurgitation (32/238) underwent conventional cardiac surgery at Cleveland Clinic, 125 with ischemic and 113 with nonischemic cardiomyopathy. Preoperative ejection fraction was 25 ± 4.5%. The primary outcome was postcardiotomy cardiogenic shock, defined as need for microaxial temporary left ventricular assist device, extracorporeal membrane oxygenation, or vasoactive-inotropic score >25. RandomForestSRC was used to identify its predictors. RESULTS Postcardiotomy cardiogenic shock occurred in 27% (65/238). Pulmonary artery pulsatility index <3.5 and pulmonary capillary wedge pressure >19 mm Hg were the most important factors predictive of postcardiotomy cardiogenic shock in ischemic cardiomyopathy. Cardiac index <2.2 L·min-1 m-2 and pulmonary capillary wedge pressure >21 mm Hg were the most important predictive factors in nonischemic cardiomyopathy. Operative mortality was 1.7%. Ejection fraction at 12 months after surgery increased to 39% (confidence interval, 35-40%) in the ischemic group and 37% (confidence interval, 35-38%) in the nonischemic cardiomyopathy group. CONCLUSIONS Predictors of postcardiotomy cardiogenic shock were different in ischemic and nonischemic cardiomyopathy. Right heart dysfunction, indicated by low pulmonary artery pulsatility index, was the most important predictor in ischemic cardiomyopathy, whereas greater degree of cardiac decompensation was the most important in nonischemic cardiomyopathy. Therefore, preoperative right heart catheterization will help identify patients with low ejection fraction who are at greater risk of postcardiotomy cardiogenic shock.
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Affiliation(s)
- Michael J Javorski
- Department of Thoracic & Cardiovascular Surgery, Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
| | - Karolis Bauza
- Department of Thoracic & Cardiovascular Surgery, Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
| | - Fei Xiang
- Department of Thoracic & Cardiovascular Surgery, Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
| | - Edward Soltesz
- Department of Thoracic & Cardiovascular Surgery, Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio; Kaufman Center for Heart Failure Treatment and Recovery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Lin Chen
- Department of Thoracic & Cardiovascular Surgery, Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
| | - Faisal G Bakaeen
- Department of Thoracic & Cardiovascular Surgery, Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
| | - Lars Svensson
- Department of Thoracic & Cardiovascular Surgery, Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio
| | - Lucy Thuita
- Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland, Ohio
| | - Eugene H Blackstone
- Department of Thoracic & Cardiovascular Surgery, Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio; Kaufman Center for Heart Failure Treatment and Recovery, Cleveland Clinic Foundation, Cleveland, Ohio; Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland, Ohio
| | - Michael Z Tong
- Department of Thoracic & Cardiovascular Surgery, Heart Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio; Kaufman Center for Heart Failure Treatment and Recovery, Cleveland Clinic Foundation, Cleveland, Ohio.
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Rajaratnam A, El‐Swais A, McTiernan C, Thoma FW, Baghal MO, Raffensperger K, Chang CH, Hickey GW, Shah FA, Al Ghouleh I. Persistence of pulmonary hypertension in patients undergoing ventricular assist devices and orthotopic heart transplantation. Pulm Circ 2023; 13:e12296. [PMID: 37908845 PMCID: PMC10614205 DOI: 10.1002/pul2.12296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 09/18/2023] [Accepted: 09/26/2023] [Indexed: 11/02/2023] Open
Abstract
Pulmonary hypertension (PH) is common in advanced heart failure and often improves quickly after left ventricular assist device (VAD) implantation or orthotopic heart transplantation (OHT), but long-term effects and outcomes are not well-described. This study evaluated PH persistence after VAD as destination therapy (VAD-DT), bridge to transplant (VAD-OHT), or OHT-alone. The study constituted a retrospective review of patients who underwent VAD-DT (n = 164), VAD-OHT (n = 111), or OHT-alone (n = 138) at a single tertiary-care center. Right heart catheterization (RHC) data was collected pre-, post-intervention (VAD and/or OHT), and 1-year from final intervention (latest-RHC) to evaluate the longitudinal hemodynamic course of right ventricular function and pulmonary vasculature. PH (Group II and Group I) definitions were adapted from expert guidelines. All groups showed significant improvements in mean pulmonary artery pressure (mPAP), pulmonary artery wedge pressure (PAWP), cardiac output, and pulmonary vascular resistance (PVR) at each RHC with greatest improvement at post-intervention RHC (post-VAD or post-OHT). PH was reduced from 98% to 26% in VAD-OHT, 92%-49% in VAD-DT, and 76%-28% in OHT-alone from preintervention to latest-RHC. At latest-RHC mPAP remained elevated in all groups despite normalization of PAWP and PVR. VAD-supported patients exhibited suppressed pulmonary artery pulsatility index (PaPi < 3.7) with improvement only posttransplant at latest-RHC. Posttransplant patients with PH at latest-RHC (n = 60) exhibited lower survival (HR: 2.1 [95% CI: 1.3-3.4], p < 0.001). Despite an overall significant improvement in pulmonary pressures and PH proportion, a notable subset of patients exhibited PH post-intervention. Post-intervention PH was associated with lower posttransplant survival.
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Affiliation(s)
- Arun Rajaratnam
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine InstituteUniversity of PittsburghPittsburghPennsylvaniaUSA
| | | | - Charles McTiernan
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine InstituteUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of Medicine, Division of CardiologyUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
| | - Floyd W. Thoma
- Department of Medicine, Division of CardiologyUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
| | - Moaaz O. Baghal
- Department of CardiologyMercy Health St. Vincent's Medical CenterToledoOhioUSA
| | - Kristen Raffensperger
- Department of Medicine, Division of Pulmonary Allergy and Critical Care MedicineUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
| | - Chung‐Chou H. Chang
- Department of Medicine, Division of General Internal MedicineUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
| | - Gavin W. Hickey
- Department of Medicine, Division of CardiologyUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
| | - Faraaz A. Shah
- Department of Medicine, Division of Pulmonary Allergy and Critical Care MedicineUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
| | - Imad Al Ghouleh
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine InstituteUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of Medicine, Division of CardiologyUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
- Department of Pharmacology and Chemical BiologyUniversity of Pittsburgh School of MedicinePittsburghPennsylvaniaUSA
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5
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Kane CJ, Lara-Breitinger KM, Alabdaljabar MS, Nkomo VT, Padang R, Pislaru C, Kane GC, Scott C, Pislaru SV, Lin G. Pulmonary artery pulsatility index in patients with tricuspid valve regurgitation: a simple non-invasive tool for risk stratification. Eur Heart J Cardiovasc Imaging 2023; 24:1210-1221. [PMID: 37097062 DOI: 10.1093/ehjci/jead070] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/23/2023] [Accepted: 03/28/2023] [Indexed: 04/26/2023] Open
Abstract
AIMS Tricuspid valve regurgitation (TR) is a common valvular disease associated with increased mortality. There is a need for tools to assess the interaction between the pulmonary artery (PA) circulation and the right ventricle in patients with TR and to investigate their association with outcomes. The pulmonary artery pulsatility index (PAPi) has emerged as a haemodynamic risk predictor in left heart disease and pulmonary hypertension (PH). Whether PAPi discriminates risk in unselected patients with greater than or equal to moderate TR is unknown. METHODS AND RESULTS In 5079 patients with greater than or equal to moderate TR (regardless of aetiology) and PA systolic and diastolic pressures measured on their first echocardiogram, we compared all-cause mortality at 5 years based on the presence or absence of PH and PAPi levels. A total of 2741 (54%) patients had PH. The median PAPi was 3.0 (IQR 1.9, 4.4). Both the presence of PH and decreasing levels of PAPi were associated with larger right ventricles, worse right ventricular systolic function, higher NT-pro BNP levels, greater degrees of right heart failure, and worse survival. In a subset of patients who had an echo and right heart catheterization within 24 h, the correlation of non-invasive to invasive PA pressures and PAPi levels was very good (r = 0.76). CONCLUSION In patients with greater than or equal to moderate TR with and without PH, lower PAPi is associated with right ventricular dysfunction, right heart failure, and worse survival. Incorporating PA pressure and PAPi may help stratify disease severity in patients with greater than or equal to moderate TR regardless of aetiology.
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Affiliation(s)
- Conor J Kane
- School of Medicine, University College Dublin, Dublin, Ireland
- Department of Cardiovascular Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Kyla M Lara-Breitinger
- Department of Cardiovascular Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | | | - Vuyisile T Nkomo
- Department of Cardiovascular Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Ratnasari Padang
- Department of Cardiovascular Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Cristina Pislaru
- Department of Cardiovascular Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Garvan C Kane
- Department of Cardiovascular Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Christopher Scott
- Division of Biomedical Statistics and Informatics, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Sorin V Pislaru
- Department of Cardiovascular Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Grace Lin
- Department of Cardiovascular Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
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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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7
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Ostad S, Sugarman J, Alkhodair A, Liang J, Mielniczuk LM, Hambly N, Helmersen D, Hirani N, Thakrar M, Varughese R, Norena M, Kularatne M, Swiston JR, Kapasi A, Weatherald J, Brunner NW. Association Between the Pulmonary Artery Pulsatility Index and Prognosis in Pulmonary Arterial Hypertension: A Multicentre Study. CJC Open 2023; 5:545-553. [PMID: 37496788 PMCID: PMC10366663 DOI: 10.1016/j.cjco.2023.04.005] [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: 01/06/2023] [Accepted: 04/19/2023] [Indexed: 07/28/2023] Open
Abstract
Background Risk stratification is fundamental in the management of pulmonary arterial hypertension (PAH). Pulmonary artery pulsatility index (PAPi), defined as pulmonary arterial pulse pressure divided by right atrial pressure (RAP), is a hemodynamic index shown to predict acute right ventricular (RV) dysfunction in several settings. Our objective was to test the prognostic utility of PAPi in a diverse multicentre cohort of patients with PAH. Methods A multicentre retrospective cohort study of consecutive adult patients with a new diagnosis of PAH on right heart catheterization between January 2016 and December 2020 was undertaken across 4 major centres in Canada. Hemodynamic data, clinical data, and outcomes were collected. The association of PAPi and other hemodynamic variables with mortality was assessed by receiver-operating characteristic curves and Cox proportional hazards modeling. Results We identified 590 patients with a mean age of 61.4 ± 15.5 years, with 66.3% being female. A low PAPi (defined as < 5.3) was associated with higher mortality at 1 year: 10.2% vs 5.2% (P = 0.02). In a multivariable model including age, sex, body mass index, and functional class, a low PAPi was associated with mortality at 1 year (area under the curveof 0.64 (95% confidence interval 0.55-0.74). However, high RAP (> 8 mm Hg) was similarly predictive of mortality, with an area under the curve of 0.65. Conclusion PAPi was associated with mortality in a large incident PAH cohort. However, the discriminative value of PAPi was not higher than that of RAP alone.
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Affiliation(s)
- Sam Ostad
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jordan Sugarman
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Medicine, Division of Respirology, University of Toronto, Toronto, Ontario, Canada
| | - Abdullah Alkhodair
- Department of Medicine, Division of Cardiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jiaming Liang
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Lisa M. Mielniczuk
- Department of Medicine, Division of Cardiology, University of Ottawa, Ottawa, Ontario, Canada
| | - Nathan Hambly
- Department of Medicine, Division of Respirology, McMaster University, Hamilton, Ontario, Canada
| | - Doug Helmersen
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Naushad Hirani
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Mitesh Thakrar
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Rhea Varughese
- Department of Medicine, Division of Respirology, University of Calgary, Calgary, Alberta, Canada
- Department of Medicine, Division of Pulmonary Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Monica Norena
- Center for Health Evaluation and Outcome Sciences, Vancouver, British Columbia, Canada
| | - Mithum Kularatne
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - John R. Swiston
- Department of Medicine, Division of Respirology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ali Kapasi
- Department of Medicine, Division of Respirology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jason Weatherald
- Department of Medicine, Division of Respirology, University of Calgary, Calgary, Alberta, Canada
- Department of Medicine, Division of Pulmonary Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Nathan W. Brunner
- Department of Medicine, Division of Cardiology, University of British Columbia, Vancouver, British Columbia, Canada
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8
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Zeng Z, Christodoulides A, Alves NJ. Real-time tracking of fibrinolysis under constant wall shear and various pulsatile flows in an in-vitro thrombolysis model. Bioeng Transl Med 2023; 8:e10511. [PMID: 37206217 PMCID: PMC10189439 DOI: 10.1002/btm2.10511] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 01/06/2023] [Accepted: 03/08/2023] [Indexed: 05/21/2023] Open
Abstract
A great need exists for the development of a more representative in-vitro model to efficiently screen novel thrombolytic therapies. We herein report the design, validation, and characterization of a highly reproducible, physiological scale, flowing clot lysis platform with real-time fibrinolysis monitoring to screen thrombolytic drugs utilizing a fluorescein isothiocyanate (FITC)-labeled clot analog. Using this Real-Time Fluorometric Flowing Fibrinolysis assay (RT-FluFF assay), a tPa-dependent degree of thrombolysis was observed both via clot mass loss as well as fluorometrically monitored release of FITC-labeled fibrin degradation products. Percent clot mass loss ranged from 33.6% to 85.9% with fluorescence release rates of 0.53 to 1.17 RFU/min in 40 and 1000 ng/mL tPa conditions, respectively. The platform is easily adapted to produce pulsatile flows. Hemodynamics of human main pulmonary artery were mimicked through matching dimensionless flow parameters calculated using clinical data. Increasing pressure amplitude range (4-40 mmHg) results in a 20% increase of fibrinolysis at 1000 ng/mL tPA. Increasing shear flow rate (205-913 s-1) significantly increases fibrinolysis and mechanical digestion. These findings suggest pulsatile level affects thrombolytic drug activities and the proposed in-vitro clot model offers a versatile testing platform for thrombolytic drug screening.
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Affiliation(s)
- Ziqian Zeng
- Department of Emergency MedicineIndiana University School of MedicineIndianapolisIndianaUSA
- Weldon School of Biomedical EngineeringPurdue UniversityWest LafayetteIndianaUSA
| | - Alexei Christodoulides
- Department of Emergency MedicineIndiana University School of MedicineIndianapolisIndianaUSA
| | - Nathan J. Alves
- Department of Emergency MedicineIndiana University School of MedicineIndianapolisIndianaUSA
- Weldon School of Biomedical EngineeringPurdue UniversityWest LafayetteIndianaUSA
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9
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Colunga AL, Colebank MJ, Olufsen MS. Parameter inference in a computational model of haemodynamics in pulmonary hypertension. J R Soc Interface 2023; 20:20220735. [PMID: 36854380 PMCID: PMC9974303 DOI: 10.1098/rsif.2022.0735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 01/31/2023] [Indexed: 03/02/2023] Open
Abstract
Pulmonary hypertension (PH), defined by a mean pulmonary arterial pressure (mPAP) greater than 20 mmHg, is characterized by increased pulmonary vascular resistance and decreased pulmonary arterial compliance. There are few measurable biomarkers of PH progression, but a conclusive diagnosis of the disease requires invasive right heart catheterization (RHC). Patient-specific cardiovascular systems-level computational models provide a potential non-invasive tool for determining additional indicators of disease severity. Using computational modelling, this study quantifies physiological parameters indicative of disease severity in nine PH patients. The model includes all four heart chambers, the pulmonary and systemic circulations. We consider two sets of calibration data: static (systolic and diastolic values) RHC data and a combination of static and continuous, time-series waveform data. We determine a subset of identifiable parameters for model calibration using sensitivity analyses and multi-start inference and perform posterior uncertainty quantification. Results show that additional waveform data enables accurate calibration of the right atrial reservoir and pump function across the PH cohort. Model outcomes, including stroke work and pulmonary resistance-compliance relations, reflect typical right heart dynamics in PH phenotypes. Lastly, we show that estimated parameters agree with previous, non-modelling studies, supporting this type of analysis in translational PH research.
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Affiliation(s)
- Amanda L. Colunga
- Department of Mathematics, North Carolina State University, Raleigh, NC, USA
| | - Mitchel J. Colebank
- Department of Mathematics, North Carolina State University, Raleigh, NC, USA
- University of California, Irvine—Edwards Lifesciences Foundation Cardiovascular Innovation and Research Center, and Department of Biomedical Engineering, University of California, Irvine, CA, USA
| | - REU Program
- Department of Mathematics, North Carolina State University, Raleigh, NC, USA
| | - Mette S. Olufsen
- Department of Mathematics, North Carolina State University, Raleigh, NC, USA
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10
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Kane CJ, Salama AA, Pislaru C, Kane GC, Pislaru SV, Lin G. Low Pulmonary Artery Pulsatility Index by Echocardiography Is Associated With Increased Mortality in Pulmonary Hypertension. J Am Soc Echocardiogr 2023; 36:189-195. [PMID: 36126823 DOI: 10.1016/j.echo.2022.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 09/08/2022] [Accepted: 09/08/2022] [Indexed: 02/06/2023]
Abstract
BACKGROUND Pulmonary hypertension (PH) is a progressive pulmonary vascular disorder with elevated mortality risk. The pulmonary artery (PA) pulsatility index (PAPi) based on invasively acquired parameters has emerged as a hemodynamic risk predictor. Whether noninvasively derived PAPi (PA pulse pressure divided by right atrial pressure) is valuable is unclear. METHODS Consecutive patients undergoing transthoracic echocardiography for known or suspected PH were included with conventional echocardiographic measures of PA systolic, PA diastolic, and estimated right atrial pressures. In those patients with PH (mean PA pressure > 20 mm Hg), PAPi was divided into 3 groups: <1.5, 1.5 to 3, and >3. Mortality was assessed over 5 years. RESULTS Of 1,045 patients enrolled, 64% had PH. Patients with the lowest PAPi had higher N-terminal-pro hormone B-type natriuretic peptide levels, larger right ventricles (RVs), worse RV systolic function, and greater degrees of tricuspid regurgitation. In patients with PH, PAPi was inversely proportional to the risk of death, with PAPi <3 associated with a 1.96-fold increased risk of death (95% CI, 1.45-2.64, P < .0001). At multivariate analysis, RV longitudinal systolic strain (hazard ratio [HR] = 1.45, 1.24-1.71; P < .0001), PAPi <3 (HR = 1.76, 1.31-2.37; P = .0002), and the presence of a pericardial effusion (HR = 1.64, 1.20-2.26 P = .003) were independently associated with increased mortality. In age- and sex-adjusted models, PAPi was incremental to PA compliance. CONCLUSIONS In patients with PH, low PAPi derived noninvasively by transthoracic echocardiography is associated with markers of right heart failure, RV dysfunction, and worse survival. PAPi could be incorporated into the conventional echo parameters reported in patients with PH and may be a useful predictor of outcome.
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Affiliation(s)
- Conor J Kane
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
| | - Abdalla A Salama
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota; Department of Cardiovascular Diseases, Suez Canal University, Ismailia, Egypt
| | - Cristina Pislaru
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
| | - Garvan C Kane
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota.
| | - Sorin V Pislaru
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
| | - Grace Lin
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
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11
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Mazimba S, Bilchick KC. Systemic arterial pulsatility (SAPi) in advanced heart failure: a novel hemodynamic risk stratification tool. Heart Vessels 2022:10.1007/s00380-022-02217-6. [DOI: 10.1007/s00380-022-02217-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022]
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12
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Is Pulmonary Artery Pulsatility Index (PAPi) a Predictor of Outcome after Pulmonary Endarterectomy? J Clin Med 2022; 11:jcm11154353. [PMID: 35955972 PMCID: PMC9368812 DOI: 10.3390/jcm11154353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 06/06/2022] [Accepted: 06/20/2022] [Indexed: 02/06/2023] Open
Abstract
Background: Pulmonary endarterectomy (PEA) is the gold standard therapy for chronic thromboembolic pulmonary hypertension (CTEPH). Traditionally, pulmonary vascular resistance (PVR) represents the main prognostic factor after surgery. The pulmonary artery pulsatility index (PAPi) has been proposed for the assessment of RV in advanced heart failure, but it has never been applied in CTEPH patients. The aim of the present study is to describe PAPi in patients who underwent PEA, before and after surgery, and to define its predictive impact on postoperative outcomes. Methods: We retrospectively reviewed 188 consecutive adult patients who underwent PEA, between December 2003 and December 2021. PAPi was calculated for 186 patients and reported. Patients were partitioned in two groups using median preoperative PAPi as cutoff value: Group 1 with PAPi ≤ 8.6 (n = 94) and Group 2 with PAPi > 8.6 (n = 92). The propensity-score-matched analysis identified 67 pairs: Early outcomes were compared between two groups. Results: Mean preoperative PAPi was 10.3 ± 7.2. Considering matched populations, no differences emerged in terms of postoperative hemodynamics; Group 1 demonstrated higher 90-day mortality significance (10.4% vs. 3.0%, p = 0.082); the need for mechanical circulatory support (MCS) was similar, but successful weaning was unlikely (25% vs. 85.7%, p = 0.032). Conclusions: Mean PAPi in the CTEPH population is higher than in other diseases. Low PAPi (≤8.6) seems to be associated with lower postoperative survival and successful weaning from MCS.
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Knio ZO, Thiele RH, Wright WZ, Mazimba S, Naik BI, Hulse MC. A Novel Hemodynamic Index of Post-operative Right Heart Dysfunction Predicts Mortality in Cardiac Surgical Patients. Semin Cardiothorac Vasc Anesth 2022; 26:200-208. [PMID: 35332827 DOI: 10.1177/10892532221080382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
INTRODUCTION This study aimed to investigate whether mortality following cardiac surgery was associated with the pulmonary artery pulsatility index (PAPi): pulmonary artery pulse pressure divided by central venous pressure (CVP), and a novel index: mean pulmonary artery pressure (mPAP) minus CVP. METHODS This retrospective analysis investigated all cardiac surgery patients in the Society of Thoracic Surgeons registry at a single academic medical center from January 2017 through March 2020 (n = 1510). The primary and secondary outcomes were mortality at 1 year and serum creatinine increase during index surgical admission, respectively. CVP, mPAP, PAPi, mPAP-CVP gradient, mean arterial pressure (MAP), and cardiac index (CI) were sampled continually from invasive hemodynamic monitors post-operatively. Associations with mortality were tested with univariate and multivariate analyses. The relationship with serum creatinine was investigated with Pearson's correlation at alpha = .05. RESULTS One-year mortality was observed in 44/1200 patients (3.7%). On univariate analysis, mortality was associated with minimums for mPAP, MAP, and CI and maximums for CVP, mPAP, PAPi, mPAP-CVP gradient, and CI (all P < .10). Model selection revealed that the only independently predictive parameters were minimum MAP (AOR = .880 [.819-.944]), maximum mPAP-CVP gradient (AOR = 1.082 [1.031-1.133]), and maximum CI (AOR = 1.421 [.928-2.068]), with model c-statistic = .770. A maximum mPAP-CVP gradient >20.5 predicted mortality with 54.5% sensitivity and 79.30% specificity, maintaining significance on survival analysis (P < .001). Peak increase in serum creatinine from baseline demonstrated a weak association with all parameters (max |r| = .33). CONCLUSIONS Mortality was not predicted by the post-operative PAPi; rather, it was independently predicted by the mPAP-CVP gradient, MAP, and CI.
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Affiliation(s)
- Ziyad O Knio
- Department of Anesthesiology, 12350University of Virginia Health System, Charlottesville, VA, USA
| | - Robert H Thiele
- Department of Anesthesiology, 12350University of Virginia Health System, Charlottesville, VA, USA
| | - W Zachary Wright
- Department of Anesthesiology, 12350University of Virginia Health System, Charlottesville, VA, USA
| | - Sula Mazimba
- Department of Medicine, Division of Cardiovascular Medicine, 12350University of Virginia Health System, Charlottesville, VA, USA
| | - Bhiken I Naik
- Department of Anesthesiology, 12350University of Virginia Health System, Charlottesville, VA, USA.,Department of Neurosurgery, 12350University of Virginia Health System, Charlottesville, VA, USA
| | - Matthew C Hulse
- Department of Anesthesiology, 12350University of Virginia Health System, Charlottesville, VA, USA
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Zern EK, Wang D, Rambarat P, Bernard S, Paniagua SM, Liu EE, McNeill J, Wang JK, Andrews CT, Pomerantsev EV, Picard MH, Ho JE. Association of Pulmonary Artery Pulsatility Index With Adverse Cardiovascular Events Across a Hospital-Based Sample. Circ Heart Fail 2022; 15:e009085. [PMID: 35135302 PMCID: PMC8855684 DOI: 10.1161/circheartfailure.121.009085] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The pulmonary artery pulsatility index (PAPi), calculated from the ratio of the pulmonary artery pulse pressure to right atrial pressure, is a predictor of right ventricular failure after inferior myocardial infarction and left ventricular assist device implantation. Whether PAPi is associated with adverse outcomes across a heterogeneous population is unknown. METHODS We examined consecutive patients undergoing right heart catheterization between 2005 and 2016 in a hospital-based cohort. Multivariable Cox models were utilized to examine the association between PAPi and all-cause mortality, major adverse cardiac events, and heart failure hospitalizations. RESULTS We studied 8285 individuals (mean age 63 years, 39% women) with median PAPi across quartiles 1.7, 2.8, 4.2, and 8.7, who were followed over a mean follow-up of 6.7±3.3 years. Patients in the lowest PAPi quartile had a 60% greater risk of death compared with the highest quartile (multivariable-adjusted hazard ratio, 1.60 [95% CI, 1.36-1.88], P<0.001) and a higher risk of major adverse cardiac events and heart failure hospitalizations (hazard ratio, 1.80 [95% CI, 1.56-2.07], P<0.001 and hazard ratio, 2.08 [95% CI, 1.76-2.47], P<0.001, respectively). Of note, patients in quartiles 2 and 3 also had increased risk of cardiovascular events compared with quartile 4 (multivariable P<0.05 for all). CONCLUSIONS Compared with the highest PAPi quartile, patients in PAPi quartiles 1 to 3 had a greater risk of all-cause mortality, major adverse cardiac events, and heart failure hospitalizations, with greatest risk observed in the lowest quartile. A low PAPi, even at values higher than previously reported, may serve an important role in identifying high-risk individuals across a broad spectrum of cardiovascular disease.
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Affiliation(s)
- Emily K. Zern
- Corrigan Minehan Heart Center, Cardiology Division, Massachusetts General Hospital, Boston, MA
| | - Dongyu Wang
- CardioVascular Institute and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Paula Rambarat
- Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Samuel Bernard
- Leon H. Charney Division of Cardiology, New York University Grossman School of Medicine
| | - Samantha M. Paniagua
- Corrigan Minehan Heart Center, Cardiology Division, Massachusetts General Hospital, Boston, MA
| | - Elizabeth E. Liu
- CardioVascular Institute and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Jenna McNeill
- Pulmonary and Critical Care Division, Massachusetts General Hospital, Boston, MA
| | - Jessica K. Wang
- CardioVascular Institute and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Carl T. Andrews
- Corrigan Minehan Heart Center, Cardiology Division, Massachusetts General Hospital, Boston, MA
| | - Eugene V. Pomerantsev
- Corrigan Minehan Heart Center, Cardiology Division, Massachusetts General Hospital, Boston, MA
| | - Michael H. Picard
- Corrigan Minehan Heart Center, Cardiology Division, Massachusetts General Hospital, Boston, MA
| | - Jennifer E. Ho
- CardioVascular Institute and Division of Cardiology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
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15
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Yildiz O, Baydar O. Prognostic value of pulmonary artery pulsatility index in chronic heart failure patients with reduced ejection fraction. Acta Cardiol 2022; 77:408-415. [PMID: 35086418 DOI: 10.1080/00015385.2021.1950369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
BACKGROUND The co-existence of right ventricular dysfunction (RVD) in heart failure patient with reduced ejection fraction (HFrEF) is an independent maker of poor prognosis. A novel right ventricular hemodynamic composite measure is the pulmonary artery pulsatility index (PAPi), which is the pulmonary artery pressure gradient ratio. It is a strong predictor of RVD in patients with acute inferior myocardial infarction and patients undergoing left ventricular assist device (LVAD) implantation. However, little is known about its prognostic value in patients with HFrEF. METHODS Between September 2010 and July 2013, 172 patients with HFrEF admitted to the tertiary hospital were included in this analysis. We carried out a cardiac catheterisation for each patient, at baseline. Subsequently, we evaluated both PAPi and the other hemodynamic parameters with longitudinal follow-up of adverse outcomes such as cardiac mortality, LVAD, and heart transplantation (HTx). RESULTS During a median follow-up period of 52 months we observed 50 cardiac deaths, 12 LVAD implantations and 10 HTx. A threshold for PAPi value of 2.82 was ascertained (Area: 0.76, p < 0.001, CI: 0.67-0.85, sensitivity 67%, specificity 69%). After dividing the study population into two groups, PAPi ≤2.82 and PAPi >2.82, no significant difference was demonstrated with respect to the aetiology of heart failure (ischaemic HFrEF p = 0.29 and non-ischaemic HFrEF p = 0.29). In Cox regression survival analysis, PAPi was an independent predictor of cardiac death (hazard ratio 0.73 [95% confidence interval 0.53-0.99], p = 0.045). CONCLUSION In patients with HFrEF, a low PAPi value (<2.82) was associated with increased cardiac mortality risk.
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Affiliation(s)
- Omer Yildiz
- Department of Cardiology, Sisli Florence Nightingale Hospital, Istanbul, Turkey
| | - Onur Baydar
- Department of Cardiology, Koc University Hospital, Istanbul, Turkey
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Diaz-Rodriguez N, Nyhan SM, Kolb TM, Steppan J. How We Would Treat Our Own Pulmonary Hypertension if We Needed to Undergo Cardiac Surgery. J Cardiothorac Vasc Anesth 2021; 36:1540-1548. [PMID: 34649806 DOI: 10.1053/j.jvca.2021.09.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/13/2021] [Accepted: 09/19/2021] [Indexed: 01/08/2023]
Abstract
Pulmonary hypertension (PH) is a disease that has many etiologies and is particularly prevalent in patients presenting for cardiac surgery, with which it is linked to poor outcomes. This manuscript is intended to provide a comprehensive review of the impact of PH on the perioperative management of patients who are undergoing cardiac surgery. The diagnosis of PH often involves a combination of noninvasive and invasive testing, whereas preoperative optimization frequently necessitates the use of specific medications that affect anesthetic management of these patients. The authors postulate that a thoughtful, multidisciplinary approach is required to deliver excellent perioperative care. Furthermore, they use an index case to illustrate the implications of managing a patient with pulmonary hypertension who presents for cardiac surgery with cardiopulmonary bypass.
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Affiliation(s)
- Natalia Diaz-Rodriguez
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD
| | - Sinead M Nyhan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD
| | - Todd M Kolb
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Baltimore, MD
| | - Jochen Steppan
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD.
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Carrasco Rueda JM, Gabino Gonzalez GA, Sánchez Cachi JL, Pariona Canchiz RP, Valdivia Gómez AF, Aguirre Zurita ON. [Invasive hemodynamic monitoring by Swan-Ganz pulmonary artery catheter: concepts and utility]. ARCHIVOS PERUANOS DE CARDIOLOGIA Y CIRUGIA CARDIOVASCULAR 2021; 2:175-186. [PMID: 37727519 PMCID: PMC10506572 DOI: 10.47487/apcyccv.v2i3.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 09/29/2021] [Indexed: 09/21/2023]
Abstract
Since its beginnings in the last century, pulmonary artery catheterization (PAC) has evolved into an invasive hemodynamic evaluation technique that can be performed at the patient's bedside through a Swan-Ganz catheter; this procedure has maintained an intermittent course in terms of its use; however, it has currently demonstrated relevance in specific scenarios. The PAC allows access to the central venous circulation, the right heart and the pulmonary artery; it performs the calculation of hemodynamic variables directly or indirectly by means of established formulas and methods. This makes possible to perform an adequate hemodynamic evaluation and classification, perform specific tests (e.g. vasoreactivity test), which help to define the diagnosis, therapeutic , monitor the response to treatment, evaluation prior to advanced therapies (e.g. cardiac transplantation or mechanical circulatory assistance devices), and prognosis in our patients. In this article we discuss the concepts and usefulness of pulmonary artery catheterization.
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Affiliation(s)
- José María Carrasco Rueda
- Servicio de Cardiología Clínica. Instituto Nacional Cardiovascular INCOR. Lima, Perú.Servicio de Cardiología ClínicaInstituto Nacional Cardiovascular INCORLimaPerú
| | - Giorgio André Gabino Gonzalez
- Servicio de Cardiología Clínica. Instituto Nacional Cardiovascular INCOR. Lima, Perú.Servicio de Cardiología ClínicaInstituto Nacional Cardiovascular INCORLimaPerú
| | - José Luis Sánchez Cachi
- Servicio de Cardiología Clínica. Instituto Nacional Cardiovascular INCOR. Lima, Perú.Servicio de Cardiología ClínicaInstituto Nacional Cardiovascular INCORLimaPerú
| | - Roberto Pedro Pariona Canchiz
- Servicio de Cardiología Clínica. Instituto Nacional Cardiovascular INCOR. Lima, Perú.Servicio de Cardiología ClínicaInstituto Nacional Cardiovascular INCORLimaPerú
| | - Anghella Fiorela Valdivia Gómez
- Servicio de Cardiología Clínica. Instituto Nacional Cardiovascular INCOR. Lima, Perú.Servicio de Cardiología ClínicaInstituto Nacional Cardiovascular INCORLimaPerú
| | - Oscar Nelson Aguirre Zurita
- Servicio de Cardiología Clínica. Instituto Nacional Cardiovascular INCOR. Lima, Perú.Servicio de Cardiología ClínicaInstituto Nacional Cardiovascular INCORLimaPerú
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Lim Y, Low TT, Chan SP, Lin W, Teo TW, Jang JHJ, Kuntjoro I, Tay ELW, Yip JWL. Does pulmonary artery pulsatility index predict mortality in pulmonary arterial hypertension? ESC Heart Fail 2021; 8:3835-3844. [PMID: 34165259 PMCID: PMC8497387 DOI: 10.1002/ehf2.13450] [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: 09/27/2020] [Revised: 04/19/2021] [Accepted: 05/16/2021] [Indexed: 11/29/2022] Open
Abstract
Aims Pulmonary artery pulsatility index (PAPi), defined as [(pulmonary artery systolic pressure − diastolic pulmonary artery pressure)/mean right atrial pressure], is a novel haemodynamic index that predicts right ventricular failure after myocardial infarction and left ventricular assist device implantation. We analysed if a low PAPi is associated with death in our 14 ‐ year pulmonary arterial hypertension (PAH) registry. Methods Consecutive patients with newly diagnosed PAH and complete haemodynamic data were prospectively enrolled into our standing registry between January 2003 and December 2016. PAPi was calculated from baseline invasive right heart catheterization data. A prognostic cut‐off value was determined with a decision tree. Baseline characteristics of ‘high’ and ‘low’ PAPi groups based on this cut‐off were compared, as well as odds of death and time‐to‐death. Results One hundred and two patients were included. Mean age was 53 years, and 77% were women. Our multi‐ethnic cohort was 64% Chinese, 23% Malay, and 10% Indian. The aetiologies were idiopathic (33%), connective tissue disease (31%), congenital heart disease (24%), and others (12%). The low PAPi group (<5.3) had a greater age (56 years vs. 49 years), lower pulmonary artery systolic pressure (71 mmHg vs. 85 mmHg), and higher mean right atrial pressure (14 mmHg vs. 6 mmHg). Mortality risk was higher in the low PAPi group (adjusted odds ratio: 2.98 and adjusted hazard ratio: 2.23). Mean right atrial pressure was the strongest predictor (hazard ratio 1.114, P = 0.009) when components of PAPi were analysed. Conclusions Pulmonary artery pulsatility index was found to be predictive of mortality in PAH and may be a valuable marker for risk stratification. Its prognostic strength may be driven by mean right atrial pressure.
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Affiliation(s)
- Yinghao Lim
- Department of Cardiology, National University Heart Centre, Singapore, National University Health System, NUHS Tower Block, Level 9, 1E Kent Ridge Road, 119228, Singapore
| | - Ting-Ting Low
- Department of Cardiology, National University Heart Centre, Singapore, National University Health System, NUHS Tower Block, Level 9, 1E Kent Ridge Road, 119228, Singapore
| | - Siew Pang Chan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Weiqin Lin
- Department of Cardiology, National University Heart Centre, Singapore, National University Health System, NUHS Tower Block, Level 9, 1E Kent Ridge Road, 119228, Singapore
| | - Ting Wei Teo
- Department of Cardiology, National University Heart Centre, Singapore, National University Health System, NUHS Tower Block, Level 9, 1E Kent Ridge Road, 119228, Singapore
| | - Jin-Hao Justin Jang
- Department of Cardiology, National University Heart Centre, Singapore, National University Health System, NUHS Tower Block, Level 9, 1E Kent Ridge Road, 119228, Singapore
| | - Ivandito Kuntjoro
- Department of Cardiology, National University Heart Centre, Singapore, National University Health System, NUHS Tower Block, Level 9, 1E Kent Ridge Road, 119228, Singapore
| | - Edgar Lik-Wui Tay
- Department of Cardiology, National University Heart Centre, Singapore, National University Health System, NUHS Tower Block, Level 9, 1E Kent Ridge Road, 119228, Singapore
| | - James Wei-Luen Yip
- Department of Cardiology, National University Heart Centre, Singapore, National University Health System, NUHS Tower Block, Level 9, 1E Kent Ridge Road, 119228, Singapore
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Osteresch R, Diehl K, Schmucker J, Ben Ammar A, Solyom O, Dierks P, Fach A, Wienbergen H, Hambrecht R. Prognostic Impact of the Pulmonary Artery Pulsatility Index in Patients with Chronic Heart Failure and Severe Mitral Regurgitation Undergoing Percutaneous Edge-to-Edge Repair. Cardiology 2020; 146:74-84. [PMID: 33091911 DOI: 10.1159/000510283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 07/12/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Pulmonary artery (PA) pulsatility index (PAPi), calculated as (PA systolic pressure - PA diastolic pressure)/right atrial pressure, emerged as a novel predictor of right ventricular failure in patients with acute inferior myocardial infarction, advanced heart failure, and severe pulmonary hypertension. However, the prognostic utility of PAPi in transcatheter mitral valve repair (TMVR) using the MitraClip® system has never been tested. OBJECTIVE To assess the prognostic impact of PAPi in patients with severe functional mitral regurgitation (MR) and chronic heart failure (CHF) undergoing TMVR. METHODS Consecutive patients with severe functional MR (grade 3+ or 4+) and CHF who underwent successful TMVR (MR ≤2+ at discharge) were enrolled and divided into 3 groups according to PAPi (A: low PAPi ≤2.2; B: intermediate PAPi 2.21-3.99; C: high PAPi ≥4.0). The primary endpoint was a composite of all-cause mortality and rehospitalization due to CHF during a mean follow-up period of 16 ± 4 months. The impact of PAPi on prognosis was assessed by a receiver-operating characteristic (ROC) analysis and a multivariable Cox proportional hazard regression analysis investigating independent predictors for outcome. RESULTS 78 patients (A: n = 27, B: n = 28, C: n = 23) at high operative risk (logistic EuroSCORE [European System for Cardiac Operative Risk Evaluation] 18.8 vs. 21.5 vs. 20.6%; nonsignificant) were enrolled. Mean PAPi was 1.6 ± 0.41 vs. 2.9 ± 0.53 vs. 6.8 ± 3.5; p < 0.001). Patients with low PAPi showed significantly higher rates of early rehospitalization for heart failure at the 30-day follow-up (14.9 vs. 7.1 vs. 4.3%; p = 0.04). In the long term, a significantly lower event-free survival for the combined primary endpoint was observed in the low PAPi group (44.4 vs. 25.0 vs. 20.3%; log-rank p = 0.016). ROC curve analysis revealed that optimal sensitivity and specificity were achieved using a PAPi cutoff of 2.46 (sensitivity 83%, specificity 78.3%, area under the curve 0.82 [0.64-0.99]; p = 0.01). In Cox regression analysis, PAPi ≤2.46 was an independent predictor for the combined primary endpoint (hazard ratio 2.85; 95% confidence interval 1.15-7.04; p = 0.023). CONCLUSIONS PAPi is strongly associated with clinical outcome among patients with CHF and functional MR undergoing TMVR. A PAPi value ≤2.46 predicts a worse prognosis independent of other important clinical, echocardiographic, and hemodynamic factors. Therefore, PAPi may serve as a new parameter to improve patient selection for TMVR.
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Affiliation(s)
- Rico Osteresch
- Bremer Institut für Herz- und Kreislaufforschung (BIHKF), Klinik für Innere Medizin II, Klinikum Links der Weser, Bremen, Germany,
| | - Kathrin Diehl
- Bremer Institut für Herz- und Kreislaufforschung (BIHKF), Klinik für Innere Medizin II, Klinikum Links der Weser, Bremen, Germany
| | - Johannes Schmucker
- Bremer Institut für Herz- und Kreislaufforschung (BIHKF), Klinik für Innere Medizin II, Klinikum Links der Weser, Bremen, Germany
| | - Azza Ben Ammar
- Bremer Institut für Herz- und Kreislaufforschung (BIHKF), Klinik für Innere Medizin II, Klinikum Links der Weser, Bremen, Germany
| | - Oana Solyom
- Bremer Institut für Herz- und Kreislaufforschung (BIHKF), Klinik für Innere Medizin II, Klinikum Links der Weser, Bremen, Germany
| | - Patrick Dierks
- Bremer Institut für Herz- und Kreislaufforschung (BIHKF), Klinik für Innere Medizin II, Klinikum Links der Weser, Bremen, Germany
| | - Andreas Fach
- Bremer Institut für Herz- und Kreislaufforschung (BIHKF), Klinik für Innere Medizin II, Klinikum Links der Weser, Bremen, Germany
| | - Harm Wienbergen
- Bremer Institut für Herz- und Kreislaufforschung (BIHKF), Klinik für Innere Medizin II, Klinikum Links der Weser, Bremen, Germany
| | - Rainer Hambrecht
- Bremer Institut für Herz- und Kreislaufforschung (BIHKF), Klinik für Innere Medizin II, Klinikum Links der Weser, Bremen, Germany
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Kuwayama T, Morimoto R, Oishi H, Kato H, Kimura Y, Kazama S, Shibata N, Arao Y, Yamaguchi S, Hiraiwa H, Kondo T, Furusawa K, Okumura T, Murohara T. Efficacy of Pulmonary Artery Pulsatility Index as a Measure of Right Ventricular Dysfunction in Stable Phase of Dilated Cardiomyopathy. Circ J 2020; 84:1536-1543. [PMID: 32713875 DOI: 10.1253/circj.cj-20-0279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Right ventricular dysfunction (RVD) in the setting of left ventricular (LV) myocardial damage is a major cause of morbidity and mortality, and the pulmonary artery pulsatility index (PAPi) is a novel hemodynamic index shown to predict RVD in advanced heart failure. However, it is unknown whether PAPi can predict the long-term prognosis of dilated cardiomyopathy (DCM) even in the mild to moderate phase. This study aimed to assess the ability of PAPi to stratify DCM patients without severe symptoms.Methods and Results:Between April 2000 and March 2018, a total of 162 DCM patients with stable symptoms were evaluated, including PAPi, and followed up for a median of 4.91 years. The mean age was 50.9±12.6 years and the mean LV ejection fraction (EF) was 30.5±8.3%. When divided into 2 groups based on median value of PAPi (low, L-PAPi [<3.06] and high, H-PAPi [≥3.06]), even though there were no differences in B-type natriuretic peptide or pulmonary vascular resistance, the probability of cardiac event survival was significantly higher in the L-PAP than in the H-PAP group by Kaplan-Meier analysis (P=0.018). Furthermore, Cox's proportional hazard regression analysis revealed that PAPi was an independent predictor of cardiac events (hazard ratio: 0.782, P=0.010). CONCLUSIONS Even in patients identified with DCM in the mild to moderate phase, PAPi may help stratify DCM and predict cardiac events.
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Affiliation(s)
- Tasuku Kuwayama
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Ryota Morimoto
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Hideo Oishi
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Hiroo Kato
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Yuki Kimura
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Shingo Kazama
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Naoki Shibata
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Yoshihito Arao
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Shogo Yamaguchi
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Hiroaki Hiraiwa
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Toru Kondo
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Kenji Furusawa
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Takahiro Okumura
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine
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Patel K, Sadeghi S, Aboulhosn J. Invasive Hemodynamic Characteristics in Patients Undergoing Transcatheter Tricuspid Valve-In-Valve Implantation for Treatment of Tricuspid Stenosis. World J Pediatr Congenit Heart Surg 2020; 11:411-416. [DOI: 10.1177/2150135120910366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: We sought to describe invasive hemodynamic measurements in patients with tricuspid stenosis (TS) undergoing transcatheter tricuspid valve-in-valve (TVIV) implantation immediately pre- and postimplantation. Development of TS in patients who have undergone surgical tricuspid valve replacement with a bioprosthetic valve is a serious complication that leads to elevated right atrial (RA) pressures and decreased cardiac output. Transcatheter TVIV implantation is a viable alternative to surgical tricuspid valve replacement, but data on the hemodynamic consequences of TVIV for the treatment of severe TS are currently limited to echocardiographic assessment of Doppler-derived gradients. Methods: Eleven patients undergoing transcatheter TVIV implantation with moderate to severe bioprosthetic valve stenosis were selected for retrospective review. Right atrial mean pressure, right ventricular (RV) systolic and end-diastolic pressure, mean diastolic RA-RV pressure gradient, pulmonary artery capillary wedge pressure, pulmonary artery systolic, end-diastolic and mean pressures, and pulmonary artery pulsatility index (PAPi) both before and after transcatheter valve placement were collected from catheterization reports. Results: After transcatheter TVIV implantation, the mean TS gradient decreased significantly ( P < .01), while the mean RV end-diastolic pressure increased ( P = .046). Pulmonary artery pulsatility index also increased as the TS was relieved ( P = .039). Conclusions: Tricuspid valve-in-valve implantation results in immediate relief of TS, leading to increased RV preload with resultant augmentation of RV and pulmonary pressures. Increased PAPi following the procedure demonstrates acute improvement in RV output but remains low due to the failure of the RA pressure to decline significantly immediately following intervention.
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Affiliation(s)
- Krishan Patel
- Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Soraya Sadeghi
- Ahmanson/UCLA Adult Congenital Heart Disease Center, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Jamil Aboulhosn
- Ahmanson/UCLA Adult Congenital Heart Disease Center, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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DOĞAN A. Pulmonary Artery Pulsatility Index As A Predictor Of Cardiac Mortality In Advanced Chronic Heart Failure: Is It Beyond Right Atrial Pressure? DICLE MEDICAL JOURNAL 2020. [DOI: 10.5798/dicletip.755709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lim HS, Gustafsson F. Pulmonary artery pulsatility index: physiological basis and clinical application. Eur J Heart Fail 2019; 22:32-38. [PMID: 31782244 DOI: 10.1002/ejhf.1679] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 09/27/2019] [Accepted: 10/27/2019] [Indexed: 01/19/2023] Open
Abstract
Pulmonary artery pulsatility index (PAPi) is a haemodynamic parameter that is derived from right atrial and pulmonary artery pulse pressures. A number of reports have described the prognostic value of PAPi in patients with advanced heart failure and cardiogenic shock. However, the derivation and physiological interpretation of this parameter have received little attention. This review will examine the physiological interpretation and clinical data for PAPi.
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Affiliation(s)
- Hoong Sern Lim
- University Hospital Birmingham NHS Foundation Trust, Birmingham, UK
| | - Finn Gustafsson
- Department of Cardiology and Clinical Medicine, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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Rong LQ, Rahouma M, Neuburger PJ, Arguelles G, Emerson J, Mauer E, Tam C, Shore-Lesserson L, Pryor KO, Gaudino M. Use of Pulmonary Artery Pulsatility Index in Cardiac Surgery. J Cardiothorac Vasc Anesth 2019; 34:1220-1225. [PMID: 31653496 DOI: 10.1053/j.jvca.2019.09.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 09/16/2019] [Accepted: 09/18/2019] [Indexed: 11/11/2022]
Abstract
OBJECTIVE This study evaluated whether the pulmonary artery pulsatility index (PAPi) collected before and after cardiopulmonary bypass (CPB) is predictive and diagnostic of new onset right ventricular (RV) failure in the elective cardiac surgical population. DESIGN This was a prospective observational study of patients who underwent cardiac surgery between 2017 and 2019. SETTING Weill Cornell Medicine, a single large academic medical center. PARTICIPANTS The study comprised 119 patients undergoing elective cardiac surgery. INTERVENTIONS Cardiopulmonary bypass, transesophageal echocardiography, pulmonary artery catheter, and elective cardiac surgery. MEASUREMENTS AND MAIN RESULTS Echocardiographic and hemodynamic data were collected at 2 time points: pre-CPB and post-chest closure/post-CPB. Patients with and without post-CPB RV dysfunction fractional area of change (<35%) were compared, and receiver operating characteristic curves were constructed. One hundred and nineteen patients undergoing elective surgery-coronary artery bypass grafting (23%), aortic valve replacement (21%), aortic surgery (19%), and combined surgery (37%)-were evaluated. Post-CPB RV dysfunction was associated with lower pre-CPB PAPi values (2.0 ± 1.0 v 2.5 ± 1.2; p = 0.001 and p = 0.03) and higher pre-CPB central venous pressure (8.3 ± 3.6 and 6.9 ± 2.7; p = 0.003 and p = 0.02, respectively). Pre-CPB PAPi (0.98 [95% confidence interval {CI} 0.96-0.99]), end systolic area (0.99 [95% CI 0.98-0.99]), and end diastolic area (1.01 [95% CI 1.001-1.02]) were independently associated with RV dysfunction in multivariable modeling, with a lower PAPi and end systolic area and higher end diastolic area demonstrating a greater risk of RV dysfunction post-CPB (post-CPB area under the curve for PAPi 0.80 [95% CI 0.71-0.88; sensitivity = 0.68, specificity = 0.93, optimal cutoff = 1.9]). CONCLUSIONS PAPi measured pre-CPB is a potential predictor and marker of post-CPB RV dysfunction and may have diagnostic utility in cardiac surgery. Additional, large-scale studies are needed to confirm this finding.
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Affiliation(s)
- Lisa Q Rong
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY.
| | - Mohamed Rahouma
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY
| | - Peter J Neuburger
- Department of Anesthesiology, New York University Hospital, New York, NY
| | | | | | - Elizabeth Mauer
- Department of Healthcare Policy and Research, Weill Cornell Medicine, New York, NY
| | - Christopher Tam
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY
| | | | - Kane O Pryor
- Department of Anesthesiology, Weill Cornell Medicine, New York, NY
| | - Mario Gaudino
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, New York, NY
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rBMSC/Cav-1 F92A Mediates Oxidative Stress in PAH Rat by Regulating SelW/14-3-3 η and CA1/Kininogen Signal Transduction. Stem Cells Int 2019; 2019:6768571. [PMID: 31781243 PMCID: PMC6855026 DOI: 10.1155/2019/6768571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 08/21/2019] [Indexed: 01/22/2023] Open
Abstract
Background/Objectives Carbonic anhydrase 1 (CA1)/kininogen and selenoprotein W (SelW)/14-3-3η signal transduction orchestrate oxidative stress, which can also be regulated by nitric oxide (NO). The mutated caveolin-1 (Cav-1F92A) gene may enhance NO production. This study explored the effect of Cav-1F92A-modified rat bone marrow mesenchymal stem cells (rBMSC/Cav-1F92A) on oxidative stress regulation through CA1/kininogen and SelW/14-3-3η signal transduction in a rat model of monocrotaline- (MCT-) induced pulmonary arterial hypertension (PAH). Method PAH was induced in rats through the subcutaneous injection of MCT. Next, rBMSC/Vector (negative control), rBMSC/Cav-1, rBMSC/Cav-1F92A, or rBMSC/Cav-1F92A+L-NAME were administered to the rats. Changes in pulmonary hemodynamic and vascular morphometry and oxidative stress levels were evaluated. CA1/kininogen and SelW/14-3-3η signal transduction, endothelial nitric oxide synthase (eNOS) dimerization, and eNOS/NO/sGC/cGMP pathway changes were determined through real-time polymerase chain reaction, Western blot, or immunohistochemical analyses. Results In MCT-induced PAH rats, rBMSC/Cav-1F92A treatment reduced right ventricular systolic pressure, vascular stenosis, and oxidative stress; downregulated CA1/kininogen signal transduction; upregulated SelW/14-3-3η signal transduction; and reactivated the NO pathway. Conclusions In a rat model of MCT-induced PAH, rBMSC/Cav-1F92A reduced oxidative stress by regulating CA1/kininogen and SelW/14-3-3η signal transduction.
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