对象为100例经心电图证实的反复发作室上速的患者,男37例,女63例,年龄48±15(18～84)岁。3例伴高血压,3例伴支气管哮喘,余均无器质性心脏病依据。所有病例均经电生理研究诱发持续性房室结折返性心动过速(AVNRT)(51例应用异丙肾上腺素和/或阿托品)。患者停用心脏活性药物≥3个半衰期后,取仰卧位插入3根6F4极导管记录高位心房、冠状窦和希氏束电图,再 The subjects were 100 electrocardiogram-confirmed patients with recurrent supraventricular tachycardia. There were 37 males and 63 females, aged 48 ± 15 (18-84 years). 3 cases with hypertension, 3 cases with bronchial asthma, I have no basis for organic heart disease. All patients underwent electrophysiological studies of persistent AVNRT (51 patients with isoproterenol and / or atropine). Patients discontinued cardiac active drugs ≥ 3 half-lives, the supine position to insert three 6F4 catheter recording high atrium, coronary sinus and His sonogram, and then