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J Korean Med Sci. 2014 Jun;29(6):879-83. doi: 10.3346/jkms.2014.29.6.879. Epub 2014 May 30.

Transient complete atrioventricular block in a preterm neonate with congenital myotonic dystrophy: case report.

Author information

1
Department of Pediatrics, Chonnam National University Medical School, Gwangju, Korea.

Abstract

Congenital myotonic dystrophy (CMD) is an inherited neuromuscular disorder with cardiac rhythm abnormalities that may occur as a child grows. No report has described complete atrioventricular (AV) block detected in a neonate with CMD. We report a floppy infant of 31(+4) weeks gestation with complete AV block at birth, who was diagnosed with CMD by Southern analysis. She recovered from complete AV block 32 hr after temporary transcutaneous pacing was applied. To the best our knowledge, this is the first recorded case of a complete AV block accompanied by CMD during the neonatal period. When a newborn has a complete AV block, the physician should consider the possibility of the CMD and conduct a careful physical examination.

KEYWORDS:

Complete Atrioventricular Block; Congenital Myotonic Dystrophy; Pacing

PMID:
24932094
PMCID:
PMC4055826
DOI:
10.3346/jkms.2014.29.6.879
[Indexed for MEDLINE]
Free PMC Article
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