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目的应用顺序角度导联判定下壁心肌梗死(AIMI)的范围及预后。方法对90例确诊的急性下壁心肌梗死的患者应用顺序角度导联进行回顾性分析,并选择50例健康人作对照。观察梗死部位与ξQ、ξST、ξT的关系及根据顺序角度导联所判定的梗死范围来确定与并发症及预后关系。结果应用顺序角度导联将90例急性下壁心肌梗死患者分为单纯下壁4例、右下壁48例、左下壁8例、后下壁2例、广泛下壁28例;广泛下壁的ξQ、ξST、ξT值及并发症、死亡率最高,其次是右下壁及后下壁,单纯下壁最低。结论通过应用顺序角度导联来判断AIMI的范围、预后及死亡率的判定很有价值,值得推广应用。
Objective To evaluate the extent and prognosis of inferior wall myocardial infarction (AIMI) with sequential angle lead. Methods Ninety patients with acute inferior myocardial infarction diagnosed by retrospective analysis were retrospectively analyzed. Fifty healthy subjects were selected as controls. Observe the relationship between infarct location and ξQ, ξST, ξT and determine the relationship with complications and prognosis according to the range of infarction determined by sequential angle lead. Results Ninety patients with acute inferior myocardial infarction were divided into simple lower wall in 4 cases, right lower wall in 48 cases, left lower wall in 8 cases, posterior inferior wall in 2 cases and extensive inferior wall in 28 cases. ξQ, ξST, ξT values and complications, the highest mortality, followed by the right lower and posterior inferior wall, the lowest simple inferior wall. Conclusion Judging the scope of AIMI by using sequential angle leads is very valuable in judging prognosis and mortality, which is worth popularizing and applying.