Oxygen uptake efficiency slope at anaerobic threshold can predict peak VO₂ in adult congenital heart disease.

ABSTRACT:

Introduction

Assessment of exercise capacity by cardiopulmonary exercise testing (CPET) in adults with congenital heart disease (CHD) is important for prognostication and preoperative assessment. Peak oxygen uptake (PVO₂) is used commonly, but can be challenging due to the difficulties of undertaking maximal CPET testing in this population. We explored whether oxygen uptake efficiency slope (OUES) at ventilatory anaerobic threshold (VAT), the point during CPET at which OUES becomes strongly correlated with PVO₂, and is more reliably available from submaximal CPET, can predict PVO₂ in adults with CHD.

Methods

We assessed consecutive individuals who completed maximal CPET at our cardiorespiratory centre, as part of routine service review, betwe

SUBMITTER: FitzMaurice TS 

PROVIDER: S-EPMC11658284 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature