肥厚型梗阻性心肌病患者常发生晕厥和猝死,机制尚未十分明了。不卧床监护发现这些病人经常出现频发和复杂的室性异位心律,其中室性心动过速可能是猝死的一个重要原因。作者研究了7例有典型临床症状并经超声心动图等检查确诊的肥厚型梗阻性心肌病患者,以往均有心跳骤停或不明原因意识丧失的病史。作者用前瞻法,通过四极导管放入房室,用程控心脏刺激器对房室进 Hypertrophic obstructive cardiomyopathy patients often occur syncope and sudden death, the mechanism is not yet clear. Ambulatory monitoring found that these patients often have frequent and complex ventricular ectopic rhythm, of which ventricular tachycardia may be an important cause of sudden death. The authors studied seven patients with typical clinical symptoms confirmed by echocardiography and other hypertrophic patients with obstructive cardiomyopathy in the past have a history of cardiac arrest or loss of consciousness unexplained cause. The authors use the prospective method, through the quadrupole catheter into the atrioventricular cardiac stimulator to atrioventricular