Cardiology in the Young

Brief Reports

Progressively worsening hypertrophic cardiomyopathy in a child with newly diagnosed Costello syndrome while receiving growth hormone therapy

Daisuke Kobayashia1 c1, Amanda L. Cooka1 and Derek A. Williamsa1

a1 Division of Pediatric Cardiology, Department of Pediatrics, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America

Abstract

We describe a 6-year-old boy with newly diagnosed Costello syndrome after the diagnosis of severe hypertrophic cardiomyopathy. His neonatal asymmetric septal cardiomyopathy resolved by 9 months of age but reappeared at 6 years of age. This report highlights two important concepts: the association of genetic syndromes with hypertrophic cardiomyopathy and the possibility of worsening severity of hypertrophic cardiomyopathy linked to growth hormone therapy.

(Received October 29 2009)

(Accepted January 21 2010)

(Online publication March 22 2010)

Correspondence:

c1 Correspondence to: Dr D. Kobayashi, MD, Division of Pediatric Cardiology, Department of Pediatrics, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, United States of America. Tel: +336 716 2694; Fax: +336 716 7100; E-mail: dkobayas@wfubmc.edu

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