Delayed diagnosis of dilated thyrotoxic cardiomyopathy with coexistent multifocal atrial tachycardia: a case report

摘要

Representative images depicting the findings of the electrocardiogram (a) and chest radiography (b). Electrocardiogram showing isoelectric baseline between P waves, and rapid, irregular rhythm with at least three distinctive P-wave morphologies (arrows; best seen in the II leads). Notably, some P waves were aberrantly conducted to the ventricles, and premature ventricular contraction was also detected. The heart rate was 184 beats/min (a)