Ventriculo-arterial coupling for predicting cardiac index increase in infants after heart surgery.

ABSTRACT:

Objectives

The aim of this study was to test the ability of ventriculo-arterial coupling (VAC) to predict cardiac index (CI) response after milrinone infusion.

Methods

This was a retrospective, observational study. We measured arterial blood pressure and echocardiography-derived variables, including CI, systemic vascular resistance index, arterial elastance (Ea) and end-systolic ventricular elastance before and after 18-24 h of milrinone infusion. VAC was calculated as the ratio of Ea to end-systolic elastance. Infants with over 15% increase in the CI were defined as CI responders. Logistical regression was used to evaluate predictors of CI responders.

Results

We enrolled 92 infants who underwent cardiac surgery and received milrinone infusion, of whom 45 infants were

SUBMITTER: Li W 

PROVIDER: S-EPMC10497444 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature