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左后分支阻滞(LPFB)的诊断较为困难,主要因为常用的心电图诊断标准缺少特异性,因此本研究企图从 Frank 心向量图上定出比较肯定的标准。作者先按以下暂定的LPFB 的心向量图诊断标准预选病例:
The diagnosis of left posterior branch block (LPFB) is more difficult because of the lack of specificity of the commonly used ECG diagnostic criteria. Therefore, this study attempts to establish a more positive standard from the Frankocardiogram. The author first according to the provisional provisional LPFB heart vector diagram diagnostic criteria pre-selected cases: