Atrial Bigeminy Associated With Hypothyroidism: A Case Report

Abstract

The effect of hypothyroidism on the cardiovascular system has been well documented. Hypothyroidism produces both systolic and diastolic dysfunction that can lead to cardiac arrhythmia and congestive heart failure. The consequences of acute hypothyroidism due to thyroid hormone withdrawal in previously thyroidectomized patients on cardiac function have been investigated only in a few studies. We describe a 65-year-old man, having previously undergone a thyroidectomy for thyroid cancer, in whom withdrawal of thyroid hormone led to cardiac arrhythmia manifested as bigeminy. It is the first report in the English literature where a short term overt hypothyroidism is associated with atrial bigeminy.




J Med Cases. 2011;2(3):121-123
doi: https://doi.org/10.4021/jmc203w