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目的分析妊娠期高血压疾病患者体表心电图的心室复极指标,探讨其对心室复极的影响。方法选择2009年4月—2011年4月收治的324例孕妇作为研究对象,根据是否患有妊娠期高血压疾病分为高血压组和正常组各162例。两组均于入院第1天接受心电图检查,分析和比较两组ST-T段、QT间期、QTc等心室复极指标。计量资料采用t检验,计数资料采用χ2检验,P<0.05为差异有统计学意义。结果高血压组ST-T段异常63例,占38.89%;正常组32例,占19.75%,差异有统计学意义(P<0.05)。高血压组QT间期为(323.8±17.1)ms,低于正常组的(355.5±15.7)ms,差异有统计学意义(P<0.05)。高血压组QTc为(444.2±19.3)ms,高于正常组的(428.4±28.4)ms,差异有统计学意义(P<0.05)。结论妊娠期高血压疾病影响心室正常复极,并使心室复极时间延长。
Objective To analyze the ventricular repolarization indexes of body surface electrocardiogram in patients with hypertensive disorder complicating pregnancy and to explore its effect on ventricular repolarization. Methods A total of 324 pregnant women admitted from April 2009 to April 2011 were selected as study subjects and divided into hypertension group and normal group according to whether they had hypertensive disorders during pregnancy. Both groups were on the first day of hospital admission ECG examination, analysis and comparison of two groups of ST-T segment, QT interval, QTc ventricular repolarization index. Measurement data using t test, count data using χ2 test, P <0.05 for the difference was statistically significant. Results There were 63 cases of ST-T abnormality in hypertension group (38.89%), 32 cases of normal group (19.75%), the difference was statistically significant (P <0.05). The QT interval was (323.8 ± 17.1) ms in hypertension group, which was lower than that in normal group (355.5 ± 15.7 ms), the difference was statistically significant (P <0.05). The QTc of hypertension group was (444.2 ± 19.3) ms, which was higher than that of the normal group (428.4 ± 28.4) ms, the difference was statistically significant (P <0.05). Conclusion Hypertensive disorders in pregnancy affect the normal repolarization of the ventricles and extend the duration of ventricular repolarization.