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Atrioventricular block in a new born with acquired long QT syndrome

Published online by Cambridge University Press:  15 August 2006

John R. Phillips ,
Christopher L. Case  and
Paul C. Gillette
John R. Phillips
Affiliation:
Division of Pediatric Cardiology, Cook Children's Heart Center, Fort Worth, TX, USA
Christopher L. Case
Affiliation:
Division of Pediatric Cardiology, Cook Children's Heart Center, Fort Worth, TX, USA
Paul C. Gillette
Affiliation:
Division of Pediatric Cardiology, Cook Children's Heart Center, Fort Worth, TX, USA
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Abstract

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We report a case of 2:1 atrioventricular block associated with acquired long QT syndrome. A newborn presented to our neonatal intensive care unit with intermittent bradycardia due to 2:1 atrioventricular block. Initial evaluation showed QT prolongation and significant electrolytic abnormalities. After correction of the electrolytic imbalance, the QT interval normalized and atrioventricular block resolved. Compared to congenital long QT syndrome with 2:1 atrioventricular block, acquired long QT syndrome with comparable atrioventricular block has a benign prognosis, provided treatment is initiated quickly.

Keywords

Acquired long QT syndromeatrioventricular block
Type
Brief Report
Information
Cardiology in the Young , Volume 11 , Issue 6 , November 2001 , pp. 680 - 682
Copyright
2001 Cambridge University Press