患者女性,34岁,因阵发性晕厥伴抽搐十二天入院.体检:一般情况可,T36℃,P_(46)次/分,R(20)次/分,BP(116)/60,叩诊心界向左扩大,听诊心律齐,偶可闻及“大炮音,”腹部无异常发现.临床诊断:扩张型心肌病.入院时心电图(附图)aVR导联连续记录,示P-P、R-R各自规律,P-P_(0.64-0.76)秒,心房率平均88次/分,为室性时相性窦性心律不齐;R-R1.34秒,心室率45次/分,大部分QRS增宽呈右束支传导阻滞型,下行QRS时限和形态呈规律性演变:QRS The patient was 34 years old and was admitted to hospital for 12 days due to paroxysmal syncope with convulsions. Physical examination: T36 ° C, P46 times / min, R (20) / min, BP (116) / 60, Percussion heart to the left to expand, auscultation heart Qi Qi, even heard and “cannon sound, ” no abnormalities found in the abdomen .Diagnosis: dilated cardiomyopathy. Admission electrocardiogram (with photos) aVR lead continuous record shows PP , RR of the law, P-P_ (0.64-0.76) seconds, the average atrial rate of 88 beats / min for the ventricular sinus sinus arrhythmia; R-R1.34 seconds, ventricular rate 45 beats / min, most QRS broadening showed a right bundle branch block type, the downward QRS duration and morphology showed regular evolution: QRS