V<sub>o2peak</sub>, Ve/V<sub>CO2</sub>, and Cardiac Remodeling Correlate with Long-Term Cardiovascular Outcome in Heart Failure Patients

Accurate prognostic stratification in patients with chronic heart failure and reduced ejection fraction (HFrEF) remains a significant clinical challenge. Many different parameters, including left ventricular (LV) and right ventricular (RV) function and cardiopulmonary exercise testing (CPET) paramet...

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Main Authors: Antonio Pagliaro, Luna Cavigli, Roberta Molle, Elisabetta Iardino, Francesca Anselmi, Francesca Righini, Luca Martini, Valerio Zacà, Giulia Elena Mandoli, Maria Concetta Pastore, Marta Focardi, Matteo Cameli, Sonia Bernazzali, Massimo Maccherini, Marco Chiostri, Flavio D’Ascenzi, Serafina Valente
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Journal of Cardiovascular Development and Disease
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Online Access:https://www.mdpi.com/2308-3425/12/5/174
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author Antonio Pagliaro
Luna Cavigli
Roberta Molle
Elisabetta Iardino
Francesca Anselmi
Francesca Righini
Luca Martini
Valerio Zacà
Giulia Elena Mandoli
Maria Concetta Pastore
Marta Focardi
Matteo Cameli
Sonia Bernazzali
Massimo Maccherini
Marco Chiostri
Flavio D’Ascenzi
Serafina Valente
author_facet Antonio Pagliaro
Luna Cavigli
Roberta Molle
Elisabetta Iardino
Francesca Anselmi
Francesca Righini
Luca Martini
Valerio Zacà
Giulia Elena Mandoli
Maria Concetta Pastore
Marta Focardi
Matteo Cameli
Sonia Bernazzali
Massimo Maccherini
Marco Chiostri
Flavio D’Ascenzi
Serafina Valente
author_sort Antonio Pagliaro
collection DOAJ
description Accurate prognostic stratification in patients with chronic heart failure and reduced ejection fraction (HFrEF) remains a significant clinical challenge. Many different parameters, including left ventricular (LV) and right ventricular (RV) function and cardiopulmonary exercise testing (CPET) parameters, are available in the literature. LV ejection fraction (LVEF) is the most used parameter in clinical practice. This study aimed to analyze CPET and echocardiographic data in patients under evaluation for heart transplantation (HTx) to identify the parameter that best correlates with cardiac events. Methods and Results. Echocardiography and CPET were performed in patients with HFrEF under evaluation for HTx. The population comprised 170 patients (mean age: 55 ± 9 years; 88% male; non-ischemic etiology: 63%). LVEF was 30.4 ± 7.6%, peak oxygen uptake (Vo<sub>2peak</sub>) was 17.08 ± 4.6 mL/Kg/min; minute ventilation (VE)/carbon dioxide production (Vco<sub>2</sub>) slope was 34.8 ± 8.7. During a follow-up of 4 ± 1 years, 37 hospitalizations, 4 deaths, 14 HTx, and 5 LV assist device implantation occurred. Patients who experienced major events had a lower Vo<sub>2peak</sub> (<i>p</i> < 0.005), higher VE/Vco<sub>2</sub> slope (<i>p</i> < 0.005), greater LV end-systolic diameter (<i>p</i> < 0.005), and RV end-diastolic diameter (<i>p</i> < 0.005) than patients without events. Conversely, LVEF did not differ between these two groups. VE/Vco<sub>2</sub> slope and RV dimensions significantly correlated with hard cardiac events (<i>p</i> = 0.019 and <i>p</i> = 0.008, respectively). Conclusions. In patients with HFrEF, parameters quantifying the system reserve (i.e., Vo<sub>2peak</sub> and VE/Vco<sub>2</sub> slope) and those demonstrating advanced biventricular remodeling may help stratify the risk of cardiac events. Conversely, LVEF showed a limited prognostic value in this setting.
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spelling doaj-art-ef47235e0846421686f177f673e97bf72025-08-20T03:14:35ZengMDPI AGJournal of Cardiovascular Development and Disease2308-34252025-05-0112517410.3390/jcdd12050174V<sub>o2peak</sub>, Ve/V<sub>CO2</sub>, and Cardiac Remodeling Correlate with Long-Term Cardiovascular Outcome in Heart Failure PatientsAntonio Pagliaro0Luna Cavigli1Roberta Molle2Elisabetta Iardino3Francesca Anselmi4Francesca Righini5Luca Martini6Valerio Zacà7Giulia Elena Mandoli8Maria Concetta Pastore9Marta Focardi10Matteo Cameli11Sonia Bernazzali12Massimo Maccherini13Marco Chiostri14Flavio D’Ascenzi15Serafina Valente16Division of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDepartment of Cardiac Surgery, University of Siena, 53100 Siena, ItalyDepartment of Cardiac Surgery, University of Siena, 53100 Siena, ItalySOD Fisiopatologia Respiratoria, Dipartimento delle Specialistiche Mediche, Az. USL Toscana Centro, 50137 Firenze, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyDivision of Cardiology, Department of Medical Biotechnologies, University of Siena, 53100 Siena, ItalyAccurate prognostic stratification in patients with chronic heart failure and reduced ejection fraction (HFrEF) remains a significant clinical challenge. Many different parameters, including left ventricular (LV) and right ventricular (RV) function and cardiopulmonary exercise testing (CPET) parameters, are available in the literature. LV ejection fraction (LVEF) is the most used parameter in clinical practice. This study aimed to analyze CPET and echocardiographic data in patients under evaluation for heart transplantation (HTx) to identify the parameter that best correlates with cardiac events. Methods and Results. Echocardiography and CPET were performed in patients with HFrEF under evaluation for HTx. The population comprised 170 patients (mean age: 55 ± 9 years; 88% male; non-ischemic etiology: 63%). LVEF was 30.4 ± 7.6%, peak oxygen uptake (Vo<sub>2peak</sub>) was 17.08 ± 4.6 mL/Kg/min; minute ventilation (VE)/carbon dioxide production (Vco<sub>2</sub>) slope was 34.8 ± 8.7. During a follow-up of 4 ± 1 years, 37 hospitalizations, 4 deaths, 14 HTx, and 5 LV assist device implantation occurred. Patients who experienced major events had a lower Vo<sub>2peak</sub> (<i>p</i> < 0.005), higher VE/Vco<sub>2</sub> slope (<i>p</i> < 0.005), greater LV end-systolic diameter (<i>p</i> < 0.005), and RV end-diastolic diameter (<i>p</i> < 0.005) than patients without events. Conversely, LVEF did not differ between these two groups. VE/Vco<sub>2</sub> slope and RV dimensions significantly correlated with hard cardiac events (<i>p</i> = 0.019 and <i>p</i> = 0.008, respectively). Conclusions. In patients with HFrEF, parameters quantifying the system reserve (i.e., Vo<sub>2peak</sub> and VE/Vco<sub>2</sub> slope) and those demonstrating advanced biventricular remodeling may help stratify the risk of cardiac events. Conversely, LVEF showed a limited prognostic value in this setting.https://www.mdpi.com/2308-3425/12/5/174heart failureleft ventricular ejection fractioncardiopulmonary exercise testingheart transplantationprognostic stratificationcardiac remodeling
spellingShingle Antonio Pagliaro
Luna Cavigli
Roberta Molle
Elisabetta Iardino
Francesca Anselmi
Francesca Righini
Luca Martini
Valerio Zacà
Giulia Elena Mandoli
Maria Concetta Pastore
Marta Focardi
Matteo Cameli
Sonia Bernazzali
Massimo Maccherini
Marco Chiostri
Flavio D’Ascenzi
Serafina Valente
V<sub>o2peak</sub>, Ve/V<sub>CO2</sub>, and Cardiac Remodeling Correlate with Long-Term Cardiovascular Outcome in Heart Failure Patients
Journal of Cardiovascular Development and Disease
heart failure
left ventricular ejection fraction
cardiopulmonary exercise testing
heart transplantation
prognostic stratification
cardiac remodeling
title V<sub>o2peak</sub>, Ve/V<sub>CO2</sub>, and Cardiac Remodeling Correlate with Long-Term Cardiovascular Outcome in Heart Failure Patients
title_full V<sub>o2peak</sub>, Ve/V<sub>CO2</sub>, and Cardiac Remodeling Correlate with Long-Term Cardiovascular Outcome in Heart Failure Patients
title_fullStr V<sub>o2peak</sub>, Ve/V<sub>CO2</sub>, and Cardiac Remodeling Correlate with Long-Term Cardiovascular Outcome in Heart Failure Patients
title_full_unstemmed V<sub>o2peak</sub>, Ve/V<sub>CO2</sub>, and Cardiac Remodeling Correlate with Long-Term Cardiovascular Outcome in Heart Failure Patients
title_short V<sub>o2peak</sub>, Ve/V<sub>CO2</sub>, and Cardiac Remodeling Correlate with Long-Term Cardiovascular Outcome in Heart Failure Patients
title_sort v sub o2peak sub ve v sub co2 sub and cardiac remodeling correlate with long term cardiovascular outcome in heart failure patients
topic heart failure
left ventricular ejection fraction
cardiopulmonary exercise testing
heart transplantation
prognostic stratification
cardiac remodeling
url https://www.mdpi.com/2308-3425/12/5/174
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