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心肌梗塞(MI)是成年人常见病、多发病,但一般认为在儿童则极少发生,成年人MI的心电图诊断标准已为大家所知晓和接受,但在儿童则缺乏一般的诊断标准。作者回顾性地分析37例来自美国得克萨斯儿童医院经尸检证实为透壁MI的病例,病人年龄均小于21岁(范围2天～20岁),心电图均为15导联(常规标准12导联、加V3R、V4R、V7)、分别观察Q波切迹,在I导联或QT间期最长的导联并用Bazett公式予以校正测算QTc值。QTc<440ms为正常,Q波的幅度以Nakanishi等的报道材料为标准,病例解剖均符合标准的急性或非急性MI。结果:37例尸检标本,发生MI的疾病分布是左冠状动脉起源于肺动脉9例(24%);川畸病7例
Myocardial infarction (MI) is a common and frequently occurring disease in adults. However, it is generally considered to occur infrequently in children. The diagnostic criteria for electrocardiogram of MI in adults are well known and accepted. However, children lack general diagnostic criteria. The authors retrospectively analyzed 37 cases of transmural MI confirmed by autopsy at the Texas Children’s Hospital in the United States. Patients were all under 21 years of age (range, 2 days to 20 years) and had an ECG of 15 leads (conventional 12-lead, Plus V3R, V4R, V7) were observed Q wave notch, respectively, in the I lead or QT interval longest lead and Bazett formula to be corrected to calculate the QTc value. QTc <440ms was normal, and the amplitude of Q wave was based on the reported materials of Nakanishi et al. The cases were dissected to meet standard acute or non-acute MI. Results: In 37 autopsy specimens, the distribution of MI occurred in 9 cases (24%) of the left coronary artery originating in the pulmonary artery; 7 cases of Kawasaki disease