P波最大时限和P波离散度对高血压合并阵发性心房颤动患者的预测价值(1)
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[摘要] 目的 探讨P波最大时限(Pmax)和P波离散度(Pd)对高血压合并阵发性心房颤动(PAF)患者的预测价值。 方法 采用12导联同步心电图记录方法测定82例高血压合并阵发性心房颤动(PAF)患者(观察组)的Pmax、P波最短时限(Pmin)和Pd，同时与66例原发性高血压不合并PAF的患者(对照组)进行比较，分析上述指标对高血压合并PAF发作预测的敏感度、特异度和阳性预测值。 结果 观察组Pmax和Pd分别为(120.5±10.0)ms和(47.6±9.0)ms，均显著高于对照组[(101.5±6.5)ms 和(28.5±7.5)ms]，组间比较差异有统计学意义(P < 0.05)；Pmax预测PAF的敏感度为84.5%，特异度为72.0%，阳性预测值为82.4%；Pd预测PAF的敏感度为78.0%，特异度为80.0%，阳性预测值为86.1%；两者联合应用的敏感度为79.3%，特异度为89.0%，阳性预测值为91.7%。 结论 Pmax和Pd是预测高血压合并PAF的两个简便可靠的心电图指标，两者联合应用可提高预测的特异性和阳性预测值。
[关键词] P波最大时限；P波离散度；阵发性；心房颤动
[中图分类号] R541.75 [文献标识码] A [文章编号] 1673-7210(2012)08(c)-0044-02
Predictive value of maximum P wave duration and P wave dispersion in hypertensive patients combined with paroxysmal atrial fibrillation
LI Jjuan ZHAO Shuai
Department of Emergency，Kaifeng Traditional Chinese Medicine Hospital，He'nan Province, Kaifeng 475000, China
[Abstract] Objective To investigate the predictive value of maximum P wave duration (Pmax) and P wave dispersion (Pd) in hypertensive patients combined with paroxysmal atrial fibrillation (PAF). Methods 12-lead simultaneous ECG was used to measure the Pmax, Pmin and Pd in 82 cases of hypertension patients combined with PAF (observation group). The results were compared with 66 cases of hypertensive patients who were not combined with PAF (control group). Then the sensitivity, specificity and positive predictive value of these indicators to hypertension combined with PAF prediction were analyzed. Results Pmax and Pd in the observation group were (120.5±10.0) ms and (47.6±9.0) ms respectively, which were significantly higher than those of the control group [(101 ......
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