Right Cervical Aortic Arch and Aberrant Subclavian Artery Causing Vascular Ring Formation.

This case report describes a congenital anomaly involving a right cervical aortic arch and an aberrant subclavian artery (ASA) leading to vascular ring (VR) formation. This anomaly is characterized by the presence of the aortic arch in the cervical region rather than the thoracic cavity. The ASA can contribute to the formation of a VR encircling the trachea and esophagus, potentially causing severe respiratory complications. Early diagnosis and effective management in pediatric patients are crucial, given the life-threatening risk of respiratory compromise. In this case, the patient was diagnosed prenatally and initially exhibited only mild respiratory symptoms. Over time, however, the patient developed breathing difficulties and recurrent infections secondary to the VR, which prompted bronchoscopy, microlaryngoscopy, and subsequent surgical intervention. The VR was surgically corrected through aortic uncrossing and reimplantation of the right subclavian artery. Fewer than five prior reports have documented a similar case, underscoring the importance of promptly recognizing the symptoms of a potential vascular anomaly to preserve airway integrity. This report contributes to establishing surgical criteria and intervention strategies, thereby enhancing preparedness for managing similar congenital cardiac abnormalities in the future.