What is an aberrant left subclavian artery?
Left aberrant subclavian artery (LASA), is a type of right aortic arch (RAA) branching, which takes-off distally to the right subclavian artery and usually crosses behind the esophagus to the left upper limb.
Is aberrant left subclavian artery life threatening?
Arterial-esophageal fistula is a rare but potentially fatal complication. Right aortic arch with aberrant left subclavian artery is a rare congenital vascular anomaly that can cause esophageal compression, particularly when the proximal portion of the aberrant subclavian artery forms a Kommerell’s diverticulum.
What causes ARSA heart?
An aberrant right subclavian artery (ARSA) is a rare vascular anomaly that is believed to induce feeding and swallowing difficulties in 20% of the patients, caused by dorsal compression of the esophagus by the anomalous artery.
Is ARSA serious?
It should be noted that ARSA is, in general, an asymptomatic benign finding; however, esophageal compression, resulting in dysphagia, has been reported in some cases [7,8]. The identification of ARSA in fetuses with Down syndrome was first reported in 2005 by Chaoui et al. [9].
Is ARSA a heart defect?
An additional cardiac defect was present in three cases (10.7%) in our study. Thus far, the most frequently reported structural abnormality coexisting with ARSA has been cardiac defects (5.4%- 23.5%) [5,7,15,16].
What is ARSA disease?
ARSA Gene – Arylsulfatase A Defects in this gene lead to metachromatic leucodystrophy (MLD), a progressive demyelination disease which results in a variety of neurological symptoms and ultimately death. Alternatively spliced transcript variants have been described for this gene.
How rare is aberrant left subclavian artery?
Aberrant subclavian artery, or aberrant subclavian artery syndrome, is a rare anatomical variant of the origin of the right or left subclavian artery. This abnormality is the most common congenital vascular anomaly of the aortic arch, occurring in approximately 1% of individuals.
How is dysphagia Lusoria diagnosed?
Diagnosis of dysphagia lusoria is via barium swallow and chest Computed tomography scan. Manometric abnormalities are variable, but age-related manometric changes may contribute to clinically relevant dysphagia lusoria in patients who present later in life.
What is ARSA heart?
Introduction. Aberrant right subclavian artery (ARSA) is the most common congenital abnormality of the aortic arch [1-6]. In ARSA, the right aortic arch regresses between the right common carotid and right subclavian arteries, instead of being distal to them.
How do you treat dysphagia Lusoria?
Various open and endovascular techniques have been used to treat aberrant LSA in right aortic arch. Endovascular treatment in the presence of esophageal or tracheal compression is not optimal because symptoms may persist after stent exclusion. 6 Open surgical repair is the preferred solution.
How common is dysphagia Lusoria?
Dysphagia lusoria, commonly named Bayford-Autenrieth dysphagia, is a rare clinical entity with an estimated prevalence of approximately 0.5% first described by David Bayford in 1790.
Is ARSA heart defect?