Echocardiographic Reference Ranges of Non-Invasive Myocardial Work Indices in Newborns.

ABSTRACT: Background: Myocardial work (MCW), estimated using non-invasive pressure-strain loops, is a novel approach for assessing left ventricular function. MCW offers potential advantages over left ventricular ejection fraction and global longitudinal strain (GLS). This study aimed to establish a reference range for MCW in newborns. Methods and Results: Overall, 113 healthy newborns (mean [±SD] birth weight 3,120±378 g) were included in the study. After entering peripheral systolic and diastolic blood pressure (BP) values, global constructive work (GCW), global work index (GWI), global work efficiency (GWE), and global wasted work (GWW) were calculated using EchoPAC software (version 204). Considering a mean [±SD] GLS of -16.3±2.8%, the mean [±SD] GWI, GCW, GWW, and GWE

SUBMITTER: Yanase Y 

PROVIDER: S-EPMC9437471 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature