Supraventricular origin of bidirectional tachycardia. Report of a case.
D000368:Aged; D002036:Bundle of His / Q000503:physiopathology; D002037:Bundle-Branch Block / Q000503:physiopathology; D004562:Electrocardiography; D006327:Heart Block / Q000503:physiopathology; D006339:Heart Rate; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D012849:Sinoatrial Node / Q000503:physiopathology; D013610:Tachycardia / Q000503:physiopathology*