Aberrant right subclavian artery: An infrequent finding in ecoendoscopy. Multicentered experience

Abstract

The aberrant right subclavian artery is the most frequent aortic vascular anomaly with an incidence of 0.4% - 2% in the general population. Endoscopic ultrasound allows the diagnosis of multiple pathologies including this type of alterations. The main objective is to evaluate the presence of the aberrant right subclavian artery as an infrequent finding in upper ultrasound endoscopy. The population will be made up of all the patients treated in the gastroenterology service at the Trinidad Teaching Medical Center and the Atias Clinic for upper echoendoscopy. A retrospective, observational descriptive, cross-sectional study will be carried out. 9,966 patients with upper ultrasound endoscopies were studied, 6 were found to have aberrant right subclavian artery (4 women and 2 men) aged between 39 and 72 years, all with radial transducer, only one had intermittent solid dysphagia, all confirmed by angiography. Tomography; resulting in 0.06% of the total population. It is a rare finding despite being the most common aortic vascular anomaly, it can go unnoticed during the upper ultrasound endoscopy. With the radial transducer, the anechoic tubular structure that emerges from the distal portion of the arch of the aorta can be seen crossing to the right between the column and the posterior wall of the esophagus. Our incidence was 0.06% compared to the study by Yusuf of 0.33%.