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A Pacing-Controlled Procedure for the Assessment of Heart Rate-Dependent Diastolic Functions in Murine Heart Failure Models
Published on: July 21, 2023
A new cardiopulmonary exercise testing prognosticating algorithm for heart failure patients treated with
Ugo Corrà1, Alessandro Mezzani, Andrea Giordano
1Division of Cardiology, Laboratory for the Analysis of Cardio-respiratory Signals, Salvatore Maugeri Foundation, IRCCS, Via per Revislate 13, Veruno, NO, Italy. ucorra@fsm.it
European Journal of Preventive Cardiology
|April 1, 2011
Summary
A new cardiopulmonary exercise testing (CPET) algorithm for heart failure (HF) patients is proposed. This updated algorithm uses peak respiratory exchange ratio (RER), exertional oscillatory ventilation (EOV), peak oxygen consumption (VO2), and peak systolic blood pressure (SBP) for improved prognosis.
Area of Science:
- Cardiology
- Pulmonology
- Exercise Physiology
Background:
- A 2004 algorithm using peak oxygen consumption (VO2), ventilation/carbon dioxide output (VE/VCO2) slope, and peak respiratory exchange ratio (RER) was proposed for heart failure (HF) prognosis.
- Significant advancements in HF therapies, notably beta-blocker treatment, have improved patient survival, necessitating algorithm re-evaluation.
Purpose of the Study:
- To critically review cardiopulmonary exercise testing (CPET) outcome studies in beta-blocker treated HF patients.
- To propose a revised prognosticating algorithm for HF patients incorporating updated clinical data and therapeutic advancements.
Main Methods:
- Review of existing CPET outcome studies focusing on HF patients receiving beta-blocker therapy.
- Critical examination of CPET parameters for their prognostic value in contemporary HF management.
Main Results:
- The proposed algorithm integrates peak RER, exertional oscillatory ventilation (EOV), peak VO2, and peak systolic blood pressure (SBP).
- EOV is suggested as a ventilatory parameter, replacing the VE/VCO2 slope.
- Peak SBP is included as a novel hemodynamic-derived index.
Conclusions:
- The revised CPET algorithm offers a potentially more accurate prognostic tool for contemporary HF patients.
- This updated approach accounts for improved survival due to modern HF therapies and incorporates novel CPET parameters.
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