Left Ventricular Isovolumetric Relaxation Time Is Prolonged in Fetal Long-QT Syndrome.

Abstract

BACKGROUND Long-QT syndrome (LQTS), an inherited cardiac repolarization disorder, is an important cause of fetal and neonatal mortality. Detecting LQTS prenatally is challenging. A fetal heart rate (FHR) less than third percentile for gestational age is specific for LQTS, but the sensitivity is only ≈50%. Left ventricular isovolumetric relaxation time… (More)
DOI: 10.1161/CIRCEP.117.005797

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