P波离散度对高血压患者并发心房颤动的预测价值

目的：探讨P波离散度在高血压患者阵发性心房颤动发生中的预测价值。方法：将95例高血压患者按有无房颤分为两组,采用同步12导联体表心电图测量Pmax、Pmin和Pd,超声心动图测定左心房内径（LAD）和左心室射血分数（LVEF）,比较两组间Pmax、Pmin、Pd、LAD和LVEF的差异。结果：与对照组相比,观察组Pmax和Pd明显增大（P〈0.05）,两组间Pmin、LAD和LVEF差异无统计学意义（P〉0.05）,Pmax〉110ms＋Pd≥40ms预测房颤的敏感性及阴性预测值有所下降,但特异性和阳性预测值上升。结论：Pd是高血压合并阵发性房颤的预测因子,与Pmax联合应用预测价值更高。

Predictive value of P wave dispersion on paroxysmal atrial fibrillation of patients with essential hypertension

Objective：To investigate the predictive value of P wave dispersion（Pd） on atrial fibrillation（AF） of patients with essential hypertension.Methods：Ninety-five patients were divided into two groups,including the essential hypertensive patients with（the observation group,n=48） or without AF（the control group,n=47）.The maximum P wave duration （Pmax）,the minimum P wave duration（Pmin） and Pd were measured in both groups through the 12-lead surface electrocardiogram.Left atrial dimension （LAD） and left ventricular ejection fraction （LVEF） were also measured by echocardiography.Pmax,Pmin,Pd,LAD and LVEF were compared between the two groups.Results：Compared with the control group,the observation group was significantly increased Pmax and Pd（P〈0.05）,between the two groups Pmin,LAD and LVEF were no significant differences（P〉0.05）,Pmax110 ms ＋ Pd≥40 ms predict the sensitivity of atrial fibrillation and the negative predictive value decreased,but the specificity and positive predictive value increase.Conclusion：Pd is a significant predictor on AF in patients with essential hypertension.Its predictive value is higher when combined Pd and Pmax.