孕中晚期短P-R间期检出率及转归的调查研究

Investigation on the rate and outcome of short P-R interval occurred in the mid and late pregnancy

目的探讨孕中晚期妇女短P-R间期的检出率、产生机制、临床意义及其转归。方法随机采集20~40岁孕中晚期妇女1340例心电图作为研究组,统计其短P-R间期检出率,并进行产后随访,观察其恢复情况;另随机采集20~40岁女性健康体检者1400例作为对照组,统计其短P-R间期的检出率。结果研究组短P-R间期检出率10.97%,对照组检出率1.43%,两组比较差异具有显著性（P〈0.01）;研究组产后1~6个月随访,恢复正常范围者达77.27%。结论妊娠中晚期妇女短P-R间期检出率明显增高,产后大部分恢复至正常范围,说明这种改变属于良性生理性改变,无明显病理性意义。

Objective To investigate the women of late pregnancy in short P-R interval incidence, clinical signifi- cance, and its mechanism. Method random collection of 20 - 40 years old women in late pregnancy in the ECG of 1340 cases as the study group, statistics the incidence rate of short P-R interval, and postpartum follow-up, to ob- serve the recovery ; the other random collection of women aged 20 - 40 and 1400 cases of healthy persons as control group, the incidence of short P-R interval statistics. Result the study group of short P-R interval was 10.97%, the control group was 1.43% , the comparison between the two groups, the difference is significant（P〈0.01 ） ;the study group after 1 - 6 months follow-up, normal range up to 77.27%. Conclusion short P-R interval in pregnant women was significantly higher incidence of postpartum, most of the recovery to the normal range, the change of the benign physiological change, no obvious pathological significance.