Reversible dilated cardiomyopathy due to thyrotoxicosis

E. Joseph Bauerlein, C. Simon Chakko, Kenneth M. Kessler

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Whether hyperthyroidism can cause a dilated cardiomyopathy remains controversial. It has been generally accepted that thyrotoxicosis may be associated with high output heart failure and may precipitate ischemia or heart failure in patients with either symptomatic or asymptomatic underlying heart disease. However, evidence for the development of a dilated cardiomyopathy in otherwise normal hearts is confined to animal models and the pediatric population.1 Studies showing a decreased cardiac reserve on exercise by nuclear cardiographic studies are often quoted as evidence of occult myocardial dysfunction in hyperthyroid patients. The number of patients in these studies was small and predominantly female (15 of 19).2,3 The fact that women do not consistently increase their ejection fraction with exercise4 challenges the current interpretation of these results. We present a patient in whom thyrotoxicosis was accompanied by a reversible dilated cardiomyopathy.

Original languageEnglish (US)
Number of pages1
JournalThe American Journal of Cardiology
Volume70
Issue number1
DOIs
StatePublished - Jul 1 1992

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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