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左束支阻滞型心动过速的分类与鉴别诊断(摘录二)

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摘要 宽型QRS波心动过速时,测定QRS波电轴不仅可协助鉴别心动过速起源部位,尚可为心动过速电生理诊断提供线索.室速起源于左心室心尖间隔部(apicoseptal region)者,其电轴指向上方(左偏-30°)起源于右心室流出道或肺动脉(肺动脉瓣上方)的室速,QRS波电轴指向下方.
出处 《岭南心血管病杂志》 2014年第1期132-134,共3页 South China Journal of Cardiovascular Diseases
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