患者男,49岁,1962年始发生心悸、胸闷,每次持续约30分钟,经服用或静推维拉帕米可缓解.以后每年发作数次.1985年3月14日发生心悸、胸闷,持续半小时后到某区医院门诊,测血压110/90mmHg,心率220次/分,律齐,心电图示“室上性心动过速”,予西地兰0.4mg静推,5分钟后,心率转为64次/分.此时复查心电图.Ⅱ、Ⅲ、aVF及V_(6～8)导联出现异常Q波,疑“急性心肌梗塞”收住院,予以硝酸甘油、消心痛及心痛定等治疗40天以“急性下壁、正后壁心肌梗塞,冠心病”出院.出院后定期门诊,坚持常规服用消心痛、心痛定及维拉帕米等药物.于1993年1月以来,心悸发作 Male, 49 years old, with palpitations and chest tightness beginning in 1962, lasts about 30 minutes each time and can be relieved by taking or intravenously administering verapamil .After that, she attacks several times a year. On March 14, 1985, palpitations and chest tightness persisted Half an hour later to a district hospital clinic, blood pressure 110 / 90mmHg, heart rate 220 beats / min, law Qi, ECG shows “supraventricular tachycardia” to cedilanid 0.4mg static push, 5 minutes later, the heart rate turn For 64 times / min.At this time review of ECG.Ⅱ, Ⅲ, aVF and V_ (6 ~ 8) leads abnormal Q wave, suspected “acute myocardial infarction” admitted to hospital, given nitroglycerin, anti-heartburn and nifedipine and other treatment 40 days to “acute inferior wall, posterior wall myocardial infarction, coronary heart disease,” discharged after regular hospital discharge, insisted routine consumption of heartburn, painkillers and verapamil and other drugs .In January 1993, palpitations attack