体表心电图房间阻滞在阵发性房颤患者中的临床意义

Clinical significance of interatrial block in surface ECGs of patients with paroxysmal atrial fibrillation

目的探讨阵发性房颤(paroxysmal atrial fibrillation,PAF)患者体表心电图房间阻滞(interatrial block,IAB)发生情况及其临床意义。方法收集在我院住院的PAF患者287例和非PAF的对照组133例。比较两组间临床特征、心脏超声指标及不完全IAB(p-IAB)和高度IAB(a-IAB)发生率。结果PAF组IAB发生率显著高于对照组(p-IAB:39.4%vs.28.3%;a-IAB:24.4%vs.8.3%,P均<0.01),相关性分析显示IAB与PAF正相关(r=0.297,P<0.01),Logistics分析显示IAB是PAF的独立相关因素(OR=2.443,95%CI为1.659~3.596,P<0.01)。结论IAB发生率在PAF患者中较高,是PAF的独立相关因素,体表心电图IAB分析可以作为PAF的临床筛查指标。

Objective To investigate the occurrence and clinical significance of interatrial block(IAB)in surface ECGs of patients with paroxysmal atrial fibrillation(PAF).Methods Data of 287 patients with PAF and 133 patients as non-PAF controls in our hospital were collected.The clinical characteristics,cardiac echocardiographic indicators,and incidences of incomplete IAB(p-IAB)and high-degree IAB(a-IAB)were compared between the two groups.Results The incidence of IAB in the PAF group is significantly higher than that in the control group(p-IAB:39.4%vs.28.3%;a-IAB:24.4%vs.8.3%,P<0.01).Correlation analysis shows a positive correlation between IAB and PAF(r=0.297,P<0.01).Logistics analysis shows that IAB is an independent related factor of PAF(OR=2.443,95%CI:1.659-3.596;P<0.01).Conclusion The incidence of IAB is higher in patients with PAF and IAB is an independent factor related to PAF.IAB analysis based on surface ECG can be considered as a clinical screening method for PAF.