患者女性,62岁,反复晕厥发作5个月,加重1天于1988年2月15日急诊入院。1987年9月以来,多次心电图记录均示有频发房早并呈二联律,曾拟诊“冠心病”。否认近期内有感冒、发热和吐泻等症状,亦未服过抗心律失常药物。体检:BP16O/80mmHg,一般情况尚可,无明显气急和浮肿,甲状腺不大,颈静脉无怒张,两肺清晰,心率68次/min,早搏呈二联律,无病理性心杂 Female patient, 62 years old, recurrent seizures for 5 months, aggravating one day in February 15, 1988 emergency admission. Since September 1987, multiple electrocardiogram records have shown frequent room early and showed a couplet law, had proposed “coronary heart disease.” Denied the recent cold, fever and vomiting and other symptoms, have not taken anti-arrhythmic drugs. Physical examination: BP16O / 80mmHg, the general situation is acceptable, no obvious shortness of breath and edema, thyroid gland, jugular vein without tension, clear lungs, heart rate 68 beats / min, premature beriberi law, no pathological heart miscellaneous