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在左束支分支阻滞心电图中以前分支阻滞(LAB)最常见,对冠心病早期诊断有一定的参考价值。我们对飞行人员的LAB进行了分析。 1 材料与方法 1.1 材料 查阅海军航空兵某部队飞行人员的健康本,阅读每年的体检结论及心电图资料,确定为LAB者共9例。 1.2 心电图诊断标准 1.2.1 LAB ①额面QRS平均电轴在-30°以上;②Ⅰ导呈qR或qRs、R、Rs型,Ⅱ、Ⅲ、aVF呈rS型,aVL导呈qR或qRs型。q波<0.02 s。③QRS时限一般≥0.08 s,不超过
In the left bundle branch block ECG before the branch block (LAB) the most common, early diagnosis of coronary heart disease have some reference value. We analyzed the flight crew’s LAB. 1 Materials and Methods 1.1 Materials Check the health of a Naval Air Corps flight crew, read the annual medical examination results and ECG data, identified as a total of 9 cases of LAB. 1.2 ECG diagnostic criteria 1.2.1 LAB ① frontal QRS average electrical axis above -30 °; ② I guide was qR or qRs, R, Rs type, Ⅱ, Ⅲ, aVF was rS type, aVL lead was qR or qRs type. q wave <0.02 s. ③QRS time limit generally ≥ 0.08 s, no more than