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目的 研究婴儿左冠状动脉起源于肺动脉（ＡＬＣＡＰＡ） 的临床特点及诊断方法。方法 总结分析１９９３～１９９８ 年收治的４ 例ＡＬＣＡＰＡ 的临床特点。结果 ４ 例ＡＬＣＡＰＡ均初诊为婴儿心内膜弹力纤维增生症，发病年龄小于３ 个月，心电图Ｉ，ａＶＬ，Ｖ４～６ 导联出现异常Ｑ 波，彩色多普勒超声心动图检查示左冠状动脉缺如。最后经导管检查及心血管造影确诊。结论 本文提出的诊断方法有助于婴儿ＡＬＣＡＰＡ的诊断，且易为儿科医师掌握。
Objective To study the clinical characteristics and diagnosis of left coronary artery originated from pulmonary artery (ALCAPA) in infants. Methods The clinical features of 4 ALCAPA cases admitted from 1993 to 1998 were analyzed. Results All 4 cases of ALCAPA were newly diagnosed as infantile endocardial fibroelastosis. The age of onset was less than 3 months. Abnormal Q waves appeared on ECG I, aVL and V4 ~ 6 leads. Color Doppler echocardiography showed left coronary artery Missing. Finally confirmed by catheter examination and angiography. Conclusion The diagnostic method proposed in this paper is helpful for the diagnosis of infant ALCAPA and is easily mastered by pediatricians.