[病例131] 患者49岁,女,初诊于1977年9月1日。病历:10年前起患心动悸发作,一开始每年发作1～2次,数年前起发作次数增多。外出时曾被救护车送去医院。今年5月起发作频繁,有时动悸严重,有时减轻,有时心律不齐, [Case 131] The patient was 49 years old and she was newly diagnosed on September 1, 1977. Medical records: Suffering from heart attack 10 years ago, 1 to 2 episodes occurred each year from the beginning, and the number of attacks increased several years earlier. He was taken to the hospital by an ambulance when he was out. Infrequent episodes began in May this year, sometimes severe, sometimes reduced, and sometimes irregular.