CONGESTIVE-HEART-FAILURE DUE TO REVERSIBLE CARDIOMYOPATHY IN PATIENTS WITH HYPERTHYROIDISM

被引:0
作者
UMPIERREZ, GE [1 ]
CHALLAPALLI, S [1 ]
PATTERSON, C [1 ]
机构
[1] HARVARD UNIV,SCH PUBL HLTH,CARDIOVASC BIOL LAB,CAMBRIDGE,MA
关键词
HYPERTHYROIDISM; DILATED CARDIOMYOPATHY; HEART FAILURE;
D O I
暂无
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The authors describe the clinical characteristics and response to therapy of seven patients with hyperthyroidism, dilated cardiomyopathy, and low-output cardiac failure. All patients (4 women and 3 men, age 47 +/- 4 years, mean +/- standard error of the mean) were admitted with the primary diagnosis of congestive heart failure. The cause of hyperthyroidism was Graves' disease in six patients, and toxic multinodular goiter in one. On admission, the mean serum T-4 was 21 +/- 1 mu g/dL and mean serum T-8: 411 +/- 77 ng/mL, and serum thyroid-stimulating hormone was suppressed (<0.03 mu U/mL) in all patients. Two-dimensional echocardiogram showed biventricular or four chamber dilatation and impaired left ventricular performance. Therapy of heart failure and hyperthyroidism resulted in rapid clinical improvement. During follow-up (5 months to 9 years), left ventricular ejection fraction improved from a mean of 28% to a mean ejection fraction of 55% (P < 0.01), Resolution of dilated cardiomyopathy with normalization of systolic function was achieved in five patients, and improvement from severe to mild left ventricular dysfunction was observed in two patients, We conclude that some patients with hyperthyroidism may have a reversible form of dilated cardiomyopathy and ''low-output failure.'' Assessment of thyroid hormone status in patients with heart failure might permit the identification of patients with dilated cardiomyopathy and thyrotoxicosis who are likely to have reversible cardiac dysfunction.
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页码:99 / 102
页数:4
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