左冠状动脉起源于肺动脉患儿的心电图分析

The electrocardiogram analysis on the anomalous origin of the left coronary artery from the pulmonary artery

目的探讨心电图对左冠状动脉起源于肺动脉的临床诊断价值。方法回顾性分析32例左冠状动脉起源于肺动脉患儿的心电图。结果27例患儿在I、aVL、V5、V6导联出现异常Q波,23例患儿在I、aVL、V5、V6导联出现不同程度ST段下移、28例患儿在I、aVL、V5、V6导联出现不同程度T波倒置,11例有左心室肥大的表现。结论患儿尤其是早期出现心衰的婴幼儿,如果心电图出现I、aVL、V5、V6导联异常Q波和ST段下移、T波倒置及左心室肥大,高度提示左冠状动脉起源于肺动脉的可能。

Objective To evalute the diagnostic value of ECG to on the children with anomalous origin of the left coronary artery, from the pulmonary artery （ALCAPA）. Methods I2-Lead ECG was reviewed in 32 patients with ALCAPA. Results Deep Q wave was found in 27 cases in leads I ,aVL and V5,V6. ST segment depression with different degree was shown in 23 eases in leads I,aVL and V5,V6, and T wave inversion was found in 28 eases in the same leads, left ventricle hypertrophia was found in 11 cases. Conclusions ALCAPA should be considered when deep Q wave and ST segment depression or T wave inversion was found in I,aVL,V5 ,V6 leads in the children＇ s ECG.