Heart block and hyperthyroidism. Report of two cases.
In two patients with hyperthyroidism who had no signs of heart disease, first-degree heart block with tall and large P waves occurred. In one patient, a left bundle-branch block and transient complete heart block with Stokes-Adams episodes also occurred, although there was no verifiable evidence of acute inflammatory disease.
D000219:Adams-Stokes Syndrome / Q000209:etiology; D000328:Adult; D002037:Bundle-Branch Block / Q000209:etiology; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000209:etiology*; D006801:Humans; D006980:Hyperthyroidism / Q000150:complications*; D013610:Tachycardia / Q000209:etiology