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心房颤动是最常见的持续性心律失常,12导联体表心电图表明,有阵发性房颤病史者,P波明显延长,最大P波时限增加是心房传导时间延长的标志。P波离散度是同步记录的12导联心电图中,不同导联测定的最大P波时限(Pmax)与最短P波时限(Pmin)差值。P波离散度是心房内存在部位依从性非均质
Atrial fibrillation is the most common persistent arrhythmia, 12 lead surface ECG showed that patients with paroxysmal atrial fibrillation, P wave significantly prolonged, the maximum increase in P wave limit is a sign of prolonged atrial conduction. The P wave dispersion is the difference between the maximum P wave limit (Pmax) and the shortest P wave limit (Pmin) measured by different leads in a 12-lead ECG recorded simultaneously. P wave dispersion is the presence of site-based non-homogeneous atrial