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患者女性,60岁。有反复心悸阵发性发作史。临床以心悸原因待查行心电图检查。 图A为心悸发作时Ⅱ描记,示P波直立,矮小,P—P规则,频率155次/min,P—R不固定,逐渐递增0.13～0.28s;P6,10,16,20之后无QRS波,脱落QRS波的R—R间隔为最长0.60s 其后R—R间隔逐渐缩短 直至P波后无QRS波出现;P—R间期恢复为最短,QRS振幅增高,房室传导呈4:3、6:5交替出现,ST—T改变明显。
Patient female, 60 years old. Have repeated palpitations episodes of paroxysm. Clinical reasons for palpitations to be checked ECG. Figure A is palpitation episodes of Ⅱ tracings, showing P wave upright, short, P-P rule, the frequency of 155 beats / min, P-R is not fixed, and gradually increased 0.13 ~ 0.28s; P6,10,16,20 after no QRS The R-R interval of QRS wave was the longest 0.60s, then the R-R interval was gradually shortened until no QRS wave appeared after P wave. The shortest P-R interval and the amplitude of QRS increased and the AV conduction amplitude was 4 : 3,6: 5 alternating, ST-T changes significantly.