The Cardiovascular State in Thyrotoxicosis

A Correlation of Clinical and Hemodynamic Studies in Patients With Hyperthyroidism With and Without Congestive Heart Failure *

“…The majority of patients in whom congestive failure has appeared have been believed to have myocardial disease of other etiology (1,2), but the probability that the circulatory load imposed by hyperthyroidism can cause even the otherwise healthy heart to fail has also been suggested (3)(4)(5). During investigation of the hemodynamic consequences of the endogenous circulatory loads imposed by various disorders, we have obtained clinical and physiologic data in 20 patients with hyperthyroidism, seven of whom were or had been in congestive heart failure.…”