Ventilatory power, a cardiopulmonary exercise testing parameter for the prediction of pulmonary hypertension at right heart catheterization.

ABSTRACT:

Background

Several cardiopulmonary exercise test (CPET) parameters (peak VO₂, PetCO₂ and VE/VCO₂) emerged as tools for the prediction of pulmonary arterial hypertension (PAH). Less is known on ventilatory power (VP) in patients with suspect PAH.

Aim

To ascertain possible correlations between VP derived at CPET and hemodynamic parameters at right heart catheterization (RHC) indicative of PH.

Methods

Forty-seven consecutive outpatients with suspect of PAH were assessed by CPET and RHC; VP was defined as peak SBP divided by the minute ventilation-CO2 production slope at CPET and Diastolic Pressure Gradient (DPG), Trans-pulmonary Pressure Gradient (TPG), mean pulmonary artery pressure (mPAP) and pulmonary vascular resistance (PVR) at RHC w

SUBMITTER: Correale M 

PROVIDER: S-EPMC7178492 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature