Aortic arch anomalies in adult disorders of deglutition.

Congenital vascular anomalies of the aortic arch are unusual etiologies of dysphagia in the adult. Swallowing abnormalities associated with compression of the esophagus primarily occur at birth or in the immediate neonatal period. However, as the result of arteriosclerotic vascular disease or aneurysm formation, anomalies which were asymptomatic postnatally may produce dysphagia in the adult. A retrospective analysis of 59 cases with aortic arch anomalies presenting initially in adulthood revealed characteristic clinical signs and symptoms. An aberrant right subclavian artery with left aortic arch was the most frequently encountered abnormality. The embryologic development of each vascular anomaly is described and the value of selective arteriography with contrast esophagography is stressed. Patients with minimal swallowing impairment are treated with dietary management alone. Surgical division of the anomalous artery is indicated only when severe dysphagia is associated with progressive life-threatening anorexia and weight loss.