This leaflet is to help you understand what Aberrant Right Subclavian Artery (ARSA) is, what tests you need and the implication of having been diagnosed with ARSA for you and your baby.

Mar 9, 2025 · Aberrant right subclavian arteries (ARSA), also known as arteria lusoria, are among the commonest aortic arch anomalies. The estimated incidence is 0.5-2% 1. They are often asymptomatic, but ~10% of people may complain of tracheo-esophageal symptoms, almost always as dysphagia, termed dysphagia lusoria 2.

Jun 8, 2022 · For patients with an aberrant right subclavian artery (ARSA), decisions on whether to intervene are best individualized based on the presence or absence of symptoms and complications.

Nov 1, 2023 · ARSA was detected in 23 cases (1.1%). ARSA was an isolated finding in 11 cases and all of these fetuses had a normal karyotype. Seven fetuses with ARSA were confirmed to have trisomy 21 and all of these fetuses had associated ultrasound abnormalities.

The purpose of this study was to determine the frequency of aberrant right subclavian artery (ARSA) among unselected fetuses and to evaluate its association with chromosomal abnormalities and other congenital anomalies.

Aberrant right subclavian artery (ARSA) ARSA is a second trimester soft marker. Its presence suggests an increased risk of trisomy 21 in the fetus. There was cerebral ventriculomegaly as well (not shown). Presence of two markers further increases the risk of trisomy 21.

An aberrant right subclavian artery (ARSA) arises directly from the aortic arch and crosses behind the trachea towards the right arm. This variant occurs in approximately 1-2% of the population; however, the frequency increases in individuals with chromosomal abnormalities such as trisomy 21 and 22q11.2 microdeletion.

What is an Aberrant Right Subclavian Artery (ARSA)? ARSA is a relatively common variation of the vessels of the Aortic Arch. The Aorta is one of the great blood vessels that deliver blood from the heart: it supplies oxygen-rich blood to the head and body. As the aorta exits the heart it runs upward towards the head, then forms the Aortic

May 11, 2010 · One such arch abnormality is an aberrant origin of the right subclavian artery (ARSA). This artery usually arises above the level of the aortic arch, as the first branch from the innominate (or brachiocephalic) artery, which in turn is …

Patients with an ARSA may require cardiac surgery using intraoperative transesophageal echocardiographic (TEE) imaging given that there is an association between congenital aortic arch abnormalities and cardiac defects.