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Pacing Clin Electrophysiol. 2013 May;36(5):e140-2. doi: 10.1111/j.1540-8159.2012.03434.x. Epub 2012 May 31.

The phenotype of a CASQ2 mutation in a Saudi family with catecholaminergic polymorphic ventricular tachycardia.

Author information

  • 1Department of Medical Genetics, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia. zhassnan@kfshrc.edu.sa

Abstract

Catecholaminergic polymorphic ventricular tachycardia (CPVT) manifests with episodic syncope or sudden death in young patients following physical activity or emotional stress. The autosomal recessive form of CPVT is caused by mutations in the CASQ2 gene. In a consanguineous family, a novel homozygous CASQ2 mutation (p.L77P) was identified in a child with CPVT who required implantation of a cardioverter defibrillator due to episodes of syncope while on medical therapy. Genetic testing found the younger sibling, who had normal initial clinical screening, to be affected. Our cases underscore the importance of family screening through genetic testing to preemptively apply the appropriate medical intervention in CPVT.

©2012, The Authors. Journal compilation ©2012 Wiley Periodicals, Inc.

PMID:
22650415
[PubMed - indexed for MEDLINE]
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