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回顾分析102例急性下壁心肌梗死(AIMI)的心电图变化对右室梗死(RVI)的诊断价值。在102例AMI中,结合临床诊断RVI占40.2％(41/102),以Ⅱ导联R/Q比值<1者,RVI的阳性率为75.5％;以Ⅱ、Ⅲ、aVF导联均呈QS形者,RVI的阳性率为93.8％,两者差异有显著性意义(P<0.01)。两组的敏感性(75.6％、73.2％)和准确性(80.4％、87.2％)差异无显著性意义(P>0.05),其特异性分别为83.6％和96.7％,差异有显著性意义(P<0.05)。两种心电图的测定方法均可作为早期诊断RVI的一个补充,其中以Ⅱ、Ⅲ、aVF导联QRS波形变化优于单一Ⅱ导R/Q比值的改变。
A retrospective analysis of 102 cases of acute inferior myocardial infarction (AIMI) ECG changes in the diagnosis of right ventricular infarction (RVI). In 102 cases of AMI, the RVI positive rate was 75.5% with R / Q ratio <1 of Ⅱ lead combined with clinical diagnosis of RVI (40.2%, 41/102), and Ⅱ, Ⅲ and aVF were QS The positive rate of RVI was 93.8%, the difference was significant (P <0.01). There was no significant difference between the two groups (75.6%, 73.2%) and accuracy (80.4%, 87.2%) (P> 0.05), the specificity was 83.6% and 96.7% respectively, with significant difference P <0.05). Both ECG measurements can be used as a supplement to early diagnosis of RVI. The QRS waveform changes of lead Ⅱ, Ⅲ, aVF are better than that of single Ⅱ lead R / Q ratio.