Exercise-provoked bidirectional ventricular tachycardia in a young woman

Yen Hung Lin, Ling Ping Lai, Ting Kwang Lin, Jiunn Lee Lin

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Exercise-induced ventricular tachycardia (VT) is rare in children and young adults without structural heart disease. Catecholaminergic polymorphic VT (CPVT) is among the possible causes and carries a poor prognosis. The QRS morphology of CPVT can be bidirectional, polymorphic or even ventricular fibrillation. We report a case of CPVT initially presenting as sudden collapse in an 18-year-old Taiwanese woman. Family history was negative for arrhythmias and sudden death. Laboratory analyses, transthoracic echocardiography, magnetic resonance imaging, electrophysiological study including procainamide and isoproterenol test were all negative. Bidirectional VT was induced by treadmill exercise test. She responded well to Β-blocker therapy. Some cases of CPVT are sporadic and some occur in patients with a family history. The treatment of choice for this disease is Β-blocker and implantation of an internal cardioverter defibrillator.

Original languageEnglish
Pages (from-to)780-783
Number of pages4
JournalJournal of the Formosan Medical Association
Volume103
Issue number10
Publication statusPublished - Oct 1 2004
Externally publishedYes

Keywords

  • Adrenergic beta-antagonists
  • Diagnosis
  • Electrocardiography
  • Ventricular tachycardia

ASJC Scopus subject areas

  • Medicine(all)

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