患者男,65岁。于20年前阵发心慌、胸闷。初每年发作1～2次,无明显诱因,近两年加重,每劳累、受凉或饮酒后即可诱发,经多次心电图证实均为阵发性室上性心动过速。初经按压眼球、深吸气屏气或压迫颈部动脉窦后均可停止发作。近两年来每10～30天发作1次,均需用西地兰、阿拉明、新斯的明、新福林等药物后方可终止。十余天前曾持续发作15小时,经上述药物及苯妥英钠、利多卡因等应用均无效,而后加用红、氯霉素、激素,最后静推心得宁25毫克后 Male patient, 65 years old. Paroxysmal palpitation 20 years ago, chest tightness. Early episodes of 1 or 2 times per year, no obvious incentive, increased in recent years, each tired, cold or after drinking can be induced by multiple ECG confirmed paroxysmal supraventricular tachycardia. After the beginning of the press of the eye, deep breath-hold or oppression of the cervical sinus can stop after the attack. In the past two years every 10 to 30 days attack 1, are required with cedilanid, Alamin, Neostigmine, new Forint and other drugs before termination. More than ten days before the onset of 15 hours, after the above drugs and phenytoin sodium, lidocaine and other applications are invalid, then add red, chloramphenicol,