正常起源的冠状动脉与心腔或大血管之间有异常交通称之为冠状动脉痿。本文报道3例小儿患者,其中2例为原发性痿,1例为继发性痿。例1 男,5岁。发现心脏杂音2年,无紫绀。胸骨左缘第3～4肋间Ⅱ～Ⅲ°收缩期杂音,肺动脉瓣第二音增强有分裂。EKG正常。胸片两肺血正常,心外形大小正常。超声心动图:右肺动脉前似见 Normal birth of the coronary artery and the heart chamber or between the abnormal blood vessels known as coronary atrophy. This article reports 3 cases of pediatric patients, of which 2 cases of primary atrophy, 1 case of secondary atrophy. Example 1 male, 5 years old. Heart murmur 2 years, no cyanosis. Sternal left margin of the 3rd ~ 4 intercostal Ⅱ ~ Ⅲ ° systolic murmur, pulmonary valve increased the second tone of the division. EKG is normal. Chest radiographs of two lungs normal, heart shape normal size. Echocardiography: The right pulmonary artery seen before