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目的观察受检者完全性左束支阻滞的发生率及心电图特点。方法记录和分析86621例常规12导联同步心电图,分别统计完全性左束支阻滞(CLBBB)及右束支阻滞(RBBB)的发生情况及心电图特点。结果检出完全性左束支阻滞(CLBBB)170例,占0.19%;检出RBBB3243例(男2252例,年龄4～98岁;女991例,年龄2～96岁),占3.74%;完全性右束支阻滞(CRBBB)1587例,占1.83%。RBBB是CLBBB的19倍。有1806例RBBB合并其他心律失常,占55.7%。结论 RBBB较常见,CLBBB不多见。CLBBB合并急性心肌梗死心电图诊断须慎重。
Objective To investigate the incidence of complete left bundle branch block and the characteristics of electrocardiogram in the subjects. Methods 86621 routine 12-lead synchronous ECGs were recorded and analyzed. The incidence of complete left bundle branch block (CLBBB) and right bundle branch block (RBBB) and ECG characteristics were recorded. RESULTS: 170 cases of complete left bundle branch block (CLBBB) were detected, accounting for 0.19%. RBBB was detected in 4343 cases (2252 males, aged 4 to 98 years, 991 females, aged 2 to 96 years) Completeness of the right bundle branch block (CRBBB) 1587 cases, accounting for 1.83%. RBBB is 19 times more than CLBBB. There are 1806 cases of RBBB with other arrhythmias, accounting for 55.7%. Conclusion RBBB is more common, CLBBB rare. CLBBB with acute myocardial infarction ECG diagnosis should be cautious.