左心房改变与心房颤动的关系

目的 探讨左心房改变与心房颤动发生的关系.方法 根据心电图和动态心电图的检测,将160例患者分为三组,持续性房颤患者54例为A组,阵发性房颤患者52例为B组,仅有心电图P波增宽的患者54例为C组.所有入选患者均经超声心动图检测左心房内径,观察患者窦性心律时心电图P波最大时限(Pmax)和P波离散度(Pdisp),并分析与房颤发生的关系.结果 患者心电图P波切迹明显,Pmax增宽,Pdisp大者房颤发生率高;超声心动图检测左房内径大者房颤发生率高,持续性房颤比阵发性房颤患者左房内径更大(P<0.01).结论 左心房扩大、Pmax增宽、Pdisp增大与房颤的发生以及持续的时间有密切关系.

Relationship between left atrial change and atrial fibrillation

Objective To analyze the relationship between left atrial change and atrial fibrillation.Methods Fifty-four patients who had persistent atrial fibrillation in electrocardiogram and dynamic-electrocardiogram were enrolled in group A,52 patients who had paroxysmal atrial fibrillation in group B,and other 54 patients who only had P wave broaden in electrocardiogram in group C.Left atrial size was measured by ultrasoundcardiogram in all patients and the maximum P wave duration(Pmax),the minimum P wave duration(Pmin),P wave dispersion(Pdisp) were measured by 12-leads electrocardiogram in patients of group B and group C.Results The patients who had evident P incisurae and Pdisp increasing tend to suffer from fibrillation;the larger left atrium was,the higher the possibility of atrial fibrillation was,the left atrium diameter of persistent atrial fibrillation was larger than that of paroxysmal atrial fibrillation.Conclusion The patients with left atrial enlargement and Pmax and Pdisp increasing tend to suffer from atrial fibrillation.