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本文以超声心动图及/或临床—X 线为对照,对41例完全性左束支阻滞(CLBBB)存在时左室肥大(LVH)患者诸项心电图参数进行分析研究。结果发现,用常规心电图标准诊断CLBBB 患者的 LVH 时,尽管特异性高,但敏感性和诊断准确率普遍低。用 Sv_2+Rv_5(或 v_6)≥45mm 和 R+S(心前导联最高 R 波+最深 S 波)≥45mm 这两项指标诊断时,敏感性和诊断准确率均较 Sokolow 指标明显增高(p<0.05),特异性也有所增加。因此,初步认为,Sv_2+Rv_5(或v_6)≥45mm 或 R+S≥45mm 是诊断 CLBBB 合并 LVH 的理想指标。
In this study, echocardiography and / or clinical-X line as a control, 41 cases of complete left bundle branch block (CLBBB) in the presence of left ventricular hypertrophy (LVH) in patients with ECG parameters were analyzed. The results showed that, with conventional ECG standard diagnosis of LVH in patients with CLBBB, despite the high specificity, but the sensitivity and diagnostic accuracy is generally low. When Sv_2 + Rv_5 (or v_6) ≥45mm and R + S (the highest R wave of the APN + the deepest S wave) ≥45mm, the sensitivity and diagnostic accuracy were significantly higher than those of Sokolow (p < 0.05), the specificity also increased. Therefore, initially considered, Sv_2 + Rv_5 (or v_6) ≥ 45mm or R + S ≥ 45mm is the ideal indicator of diagnosis of CLBBB with LVH.