Transposition of the great arteries with posterior aorta: Detection by two-dimensional echocardiography

Abstract

Two-dimensional echocardiographic features in a case of transposition of the great arteries (TGA) with the posterior aorta are described. The unusual arrangement of the great arteries and the presence of bilateral conuses and aortic-mitral fibrous continuity were clearly demonstrated by angiocardiography and then confirmed at surgery.

Multimodality Imaging Guidelines of Patients with Transposition of the Great Arteries: A Report from the American Society of Echocardiography Developed in Collaboration with the Society for Cardiovascular Magnetic Resonance and the Society of Cardiovascular Computed Tomography

“…In the majority of patients with TGA, the aorta is rightward and anterior to the pulmonary artery, but there can be wide variability in the spatial relationships between the great arteries, including the rare relationship of a posterior and/or leftward aorta. 6 Approximately 60% of patients with TGA have an intact ventricular septum, and the other 40% have ventricular septal defects (VSD). 7 At birth, a patent foramen ovale and patent ductus arteriosus (PDA) are usual and allow a variable amount of mixture of oxygenated and deoxygenated blood.…”

Newly revised category for complex congenital cardiac segmental connections

“…In this variant, the aortic valve is located right‐posterior‐inferior to the pulmonary valve and the aortic‐mitral fibrous continuity may persist through an outlet type VSD. The greater part of the aortic orifice is above the right ventricle and the pulmonary artery arises to the left of the conal septum and is completely above the left ventricle [3,4]. In {S.D.I}‐posterior TGA (Fig.…”