Fig. 1From: Myocardial infarction, symptomatic third degree atrioventricular block and pulmonary embolism caused by thalidomide: a case reportElectrocardiography development. a Almost normal ECG shows no conduction block. b ECG indicates first-degree AV block and CRBBB with precordial leads ST segment elevation. c ECG indicates third-degree AV block with precordial leads ST segment elevation. d ECG shows right ventricular stimulation of temporary pacemaker and elevated ST segment restoring (after emergency coronary angiography). e ECG indicates third-degree AV block disappeared and pacemaker removed, but CRBBB was left overBack to article page