关于急性心肌梗死并发阵发性心房颤动与P波离散度的关系

About relationship between acute myocardial infarction with paroxysmal atrial fibrilafion and P wave dispersion

目的探讨急性心肌梗死并发阵发性心房颤动与P波最大时间（Pmax）、P波离散度（Pd）的关系。方法观察33例急性心肌梗死并发阵发性心房颤动患者和25例单纯急性心肌梗死患者的Pmax、Pd。结果两组Pmax（123．99±3．61ms、110．37±2．58ms）、Pd（45．82±2．93ms、29．13±3．57ms）差异均有显著性意义（P〈0．01）；Pmax≥120ms和Pd≥40ms预测心房颤动的敏感性分别为92％和96％，特异性分别为91％和95％。结论Pmax延长和Pd增加可预测急性心肌梗死并发心房颤动的危险眭。

Objective To understand relationship between acute myocardial infarction mith paroxysmal atrial fibrilation and P wave dispersion （ Pd ） and Maximum P wave interval（ P~ ）. Methods Acute myocardial infarction with paroxysmal infaetion control group were observed Pmax and Pd. Results Pmax （ 123. 99 ± 3. 61 ms, 110. 37 ±2. 58 ms）and Pa （45.82±2. 93 ms,29. 13 ±3.57 ms）had significant difference between acute myocardial infarction with PAF and contral group, Pmax≥ 120 ms 和 Pd ≥ 40 ms separated patients from control group,with a higher sensitivity（92% and 96% ） and speeifeity （91% and 95 % ）. Conclusion A prolonged Pmax and a increased Pd may be predictive risk of acute myocardial infarction with paroxysmal atrial fibrillation.