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Myotonic dystrophy presenting as atrial flutter in childhood

Published online by Cambridge University Press:  20 January 2005

Kenji Suda
Affiliation:
Division of Pediatric Cardiology, Department of Pediatrics, Tenri Hospital, Tenri City, Japan
Masahiko Matsumura
Affiliation:
Division of Pediatric Cardiology, Department of Pediatrics, Tenri Hospital, Tenri City, Japan
Yuji Hayashi
Affiliation:
Department of Internal medicine, Kinan Hospital, Mihama town, Mie, Japan

Abstract

A 12-year-old boy presented with tachycardia and cardiomegaly. An electrocardiogram showed atrial flutter with a ventricular rate of 170 beats/min. The echocardiogram showed left ventricular dilation, with decreased contractility. Electromyography confirmed the diagnosis of myotonic dystrophy. The atrial flutter was converted to sinus rhythm by electroversion, leading to restoration of normal cardiac function. Our case illustrates that atrial flutter can be an early sign of the cardiac complications of myotonic dystrophy in childhood.

Type
Brief Report
Copyright
© 2004 Cambridge University Press

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