Abstract:

Objective To investigate the transthoracic echocardiography（TTE）features of patients with abnormal coronary artery origin（CAOA）and to evaluate the changes of cardiac function before and after coronary transplantation. Methods We retrospectively collected the imaging and clinical data of 43 CAOA patients confirmed in our hospital（from 2008，1 to 2020，4），and analyzedthe ultrasonic characteristics before and after operation in 16 out of the 43 patients accepting coronary transplantation. Results CAOA were more common in women（65.1%， 28/43），and most of the patients visited the doctor due to heart murmurs during physical examination（22/43， 51.2%）. The abnormal origin of left coronary artery（LCA）was the most common type，accounting for 65.1%（28/43）. For LCA abnormal patients，the most common type was LCA from pulmonary artery（PA）（20/43，46.5%）. 58.1% （25/43）of the CAOA patients didn′t present other malformation. Echocardiography showed enlargement of the left ventricular，massive mitral regurgitation（7/43，16.3%），but no changes in LVEF and FS. During the follow⁃up of 16 patients undergoing surgery，LVEDD and mitral regurgitation were reduced in 6 months after surgery when compared with those before surgery（P < 0.05）. Conclusions Echocardiography showsthe LCA originating from PA is the most common type in CAOA patients，usuallyaccompanied without other malformation，and mainly shows LV enlargement， mitral regurgitation. The left ventricular remolding recovers 6 months after coronary artery transplantation.

Key words:

abnormal coronary artery origin, cardiac function, echocardiography