Publication Date

4-1-2019

Journal

The Texas Heart Institute Journal

DOI

10.14503/THIJ-17-6368

PMID

31236081

Publication Date(s)

April 2019

Language

English

PMCID

PMC6555286

PubMedCentral® Posted Date

4-1-2019

PubMedCentral® Full Text Version

Post-Print

Published Open-Access

yes

Keywords

Abnormalities, Multiple, Cardiac Pacing, Artificial, Electrocardiography, Follow-Up Studies, Heart Block, Heart Defects, Congenital, Heart Ventricles, Humans, Infant, Newborn, Male

Abstract

Congenital complete heart block with concomitant biventricular noncompaction cardiomyopathy has been reported once previously. Although not universal, when restrictive physiology is present, impaired diastolic filling may pose a distinct challenge to pacing during the neonatal period. We present the case of a neonate with congenital complete heart block and biventricular noncompaction that resulted in severe diastolic dysfunction and atrioventricular dyssynchrony. We intentionally used 2:1 ventricular pacing to provide atrioventricular synchrony with every paced beat, and this resulted in hemodynamic and clinical improvement. This unconventional pacing technique may be beneficial in other neonates who have complete heart block and diastolic dysfunction.

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