Right aortic arch with isolation of the left subclavian artery

Abstract

A 5-year-old boy with cyanotic heart disease and weak pulses in the left arm is described. Cardiac catheterization and cineangiography confirmed the diagnosis of tetralogy of Fallot and right aortic arch with isolation of the left subclavian artery. In addition to the aortogram and right ventricular cineangiography, pulmonary angiography was performed, demonstrating that blood did not reach the left subclavian artery through a left ductus arteriosus.

Isolation of the subclavian artery: 4 cases report and literature review

“…Most subclavian isolation was associated with intracardiac [4,[7][8][9][10], aortic arch (interrupted arch [11] or bilateral ductus [12]), or great vessels anomalies [13], most frequently tetralogy of Fallot. All our four patient presented with associated cardiac lesions.…”

Right Aortic Arch With Isolation of the Left Subclavian Artery: Case Report and Review of the Literature

“…Because of the decreased pressure and flow in an isolated left subclavian artery, it cannot be used for this purpose. 4,8,26 The associated giant saccular intracavernous carotid aneurysm and the angiographically azygous anterior cerebral artery in the patient we describe are intriguing. A true azygous intracavernous carotid aneurysms, which are congenital in origin,"?…”

Isolated Left Subclavian Artery, Complete Atrioventricular Block, and Tricuspid Atresia in a Neonate

“…Isolated LSA from the ductus arteriosus has been described in patients with and without congenital heart disease and has frequently been associated with right aortic arch. 1,2 Approximately 60% of such patients have tetralogy of Fallot, double-outlet right ventricle, atrial and ventricular septal defects, or a combination of these. [3][4][5] Embryologically, the left 7th intersegmental artery migrates cephalad to the level of the ductal arch, after which the distal left dorsal aorta involutes, isolating the LSA from the aortic arch but maintaining its connectivity to the PA through the ductus arteriosus.…”