Key result
Hyperthyroidism represents a reversible cause of new-onset heart failure requiring routine exclusion without CAD.
Why the study?
Hyperthyroidism is a potentially reversible cause of cardiomyopathy, raising uncertainty about whether hyperthyroidism-related cardiomyopathy is due to tachycardiomyopathy or to thyrotoxic cardiomyopathy.
Case Report (n=1)
Supports thyroid screening in new HF without CAD; leaves open need for prospective validation before practice change.
Ischaemic heart disease is the most common cause of heart failure, but less common causes such as hyperthyroidism should be kept in mind. As a potential reversible cause of cardiomyopathy hyperthyroidism should be excluded in every new patient, young and old, especially in the absence of coronary artery disease. Inspired by an intriguing clinical case we address the question whether hyperthyroidism-related cardiomyopathy is due to tachycardiomyopathy or to thyrotoxic cardiomyopathy.
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Vydt et al. (2006) conducted a case report in Hyperthyroidism-related cardiomyopathy (n=1). Hyperthyroidism / thyrotoxicosis was evaluated. Hyperthyroidism is a potentially reversible cause of cardiomyopathy that should be excluded in new heart failure patients, particularly in the absence of coronary artery disease.
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