Study of echocardiography in the diagnosis of interrupted aortic arch with aberrant right subclavian artery

Abstract

Objective To explore the value and availability of echocardiography in the diagnosis of interrupted aortic arch (IAA) with aberrant right subclavian artery (ARSCA) in children. Methods The echocardiographic images and clinical data of 6 patient s with IAA and ARSCA confirmed by operation were analyzed retrospectively. Results six cases of IAA (all were type B) was associated with ARSCA. Among them, 4 cases were misdiagnosed as IAA-C. In IAA-B associated with ARSCA right and left common carotid artery were originated from the aortic arch before interruption, and they appeared as a symmetrical ″Y″ shape with ascending aorta; left and right subclavian artery were originated from the aortic arch after interruption, and the blood vessel lines of ARSCA were variable but always extending to the upper right; the ratio of the diameter of pulmonary artery and aorta were increased obviously. Conclusions It is significant to carefully examine aberrant right subclavian artery, and it was help to the cardiac surgery. Key words: Echocardiography; Interrupted aortic arch; Right subclavian artery/aberration