Diagnosis of transposition of the great arteries with posterior aorta by echocardiography / 中华超声影像学杂志

ABSTRACT

Objective To improve the understanding to transposition of the great arteries with posterior aorta and decrease the clinic misdiagnosis by summarizing their echocardiography features . Methods Echocardiography images were retrospectively reviewed for 7 cases with transposition of the great arteries with posterior aorta who diagnosed in Anzhen Hospital ,and their echocardiography features were summarized .Results In 7 patients ,5 patients had operation ,including 3 for arterial switch operation ,1 for right GLEEN ,1 for right GLEEN and Fortan surgery ,and 2 patients were lost to follow‐up .The echocardiography characters① Artery short view showed aorta and pulmonary artery existed the half‐surrounding relationship .The aorta was situated posteriorly and the pulmonary artery anteriorly .②Multiple views showed aorta was completely and mostly arised from the right ventricle ,while the pulmonary artery was came off the left ventricle .③ Ventricular septal defects were presented in all cases and aorta could ride the defect of ventricular septal .④ In most cases ,fibrous continuity between the aortic and mitral valve through a ventricular septal defect was found and there was no conus under the aorta .⑤ Some cases could combine the different degree stenosis of the outflow tract of subpulmonary valve and pulmonary valve . Conclusions The connection relationship between two arteries and ventricles can displayed clearly on the long axis view of double outflow tracts of two ventricles under xiphoid process .The acoustic window under the xiphoid process is the key for diagnosis and differential diagnosis of the disease .