Right ventricular stroke work index from echocardiography in patients with pulmonary arterial hypertension-the role in short-term follow-up assessment.

ABSTRACT:

Aims

Right ventricular (RV) failure causes high mortality in patients with pulmonary arterial hypertension (PAH). RV stroke work index (RVSWi) poses as a potential predictor of outcome. We evaluated how RVSWi by echocardiography (ECHO) or right heart catheterization (RHC) is altered following PAH treatment and if RVSWi is an indicator of outcome in PAH.

Methods and results

Fifty-four patients with PAH performed ECHO and RHC (median, 0 days between examinations) at baseline and treatment follow-up. RVSWi_RHC was computed as (mPAP-mRAP)×SVi_RHC, (mPAP, mean pulmonary arterial pressure; mRAP, mean right atrial pressure; SVi, stroke volume indexed to body surface area). ECHO-derived RVSWi was calculated as RVSWi_ECHO-Mean = TR_meanPG × SVi

SUBMITTER: Jumatate R 

PROVIDER: S-EPMC11682947 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature