患者男性,62岁。因胸部憋闷、心悸4小时于1990年6月14日入院。该患者阵发性胸部憋闷、心悸10余年,诊为预激综合征。平时不服任何药物。于6月14日中午突然胸部憋闷、心悸,心电图示预激综合征合并快速房颤,当即口服乙胺碘呋酮0.4g不缓解,下午5点入院。查体:BP16/11kPa。一般情况可,心律不整,心率186次,心尖部可闻Ⅱ～Ⅲ Male patient, 62 years old. Because of chest oppressed, palpitations 4 hours on June 14, 1990 admitted. The patient with paroxysmal chest oppressed, palpitations more than 10 years, diagnosed as pre-excitation syndrome. Usually do not accept any drugs. At noon on June 14 at noon chest oppressed, palpitations, ECG showed pre-excitation syndrome with rapid atrial fibrillation, immediate oral administration of amiodarone 0.4g does not ease, at 5 pm admission. Physical examination: BP16 / 11kPa. In general, arrhythmias, heart rate 186 times, the apex can smell Ⅱ ~ Ⅲ