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小儿心肌梗塞(MI)罕见,且无统一的心电图诊断标准。本文回顾分析37例经尸检证实的透壁性MI,其中30例有MI的心电图表现,各例的年龄<21岁(2天至20岁)。 37例MI的原发病:左冠状动脉异常起源于肺动脉9例(24％);川崎病7例(19％);心肌病5例(15％);窒息、严重主动脉瓣狭窄、心肌炎各3例(8％);栓塞、肺动脉闭锁伴完整室间隔各2例(5％);其他如系统性红斑狼疮、淋巴瘤、心脏移植术后3例(6％)。37例中28例(75％)为急性MI,其心电图符合成人MI的心电图特征;另9例为非急性MI,其中2例的心电图有宽Q波且QTc>440ms,7例心电图正常。30例MI的异常心电图特征如下:(1)Q波振幅:8例(22％)Ⅲ导联
Infantile myocardial infarction (MI) rare, and there is no uniform ECG diagnostic criteria. We retrospectively analyzed 37 transmural MI confirmed by autopsy, of which 30 had electrocardiographic findings of MI, each of whom was <21 years old (2 days to 20 years). 37 cases of MI primary disease: the left coronary artery originated in 9 cases of pulmonary artery (24%); Kawasaki disease in 7 cases (19%); cardiomyopathy in 5 cases (15%); asphyxia, severe aortic stenosis, myocarditis Three patients (8%) had thromboembolism and pulmonary atresia with complete interventricular septum in 2 cases (5%). Others were systemic lupus erythematosus (SLE), lymphoma and heart transplantation in 3 cases (6%). Of the 37 cases, 28 (75%) were acute MI and their electrocardiogram was consistent with the electrocardiographic features of adult MI. The other 9 patients were non-acute MI. The electrocardiogram of 2 patients had wide Q wave and QTc> 440ms, and 7 patients had normal electrocardiogram. The abnormal electrocardiographic features of 30 patients with MI were as follows: (1) Q wave amplitude: 8 cases (22%) Ⅲ lead