Successful prosthetic graft replacement for middle aortic syndrome in a 9-year-old child.

Middle aortic syndrome is a rare vascular disorder characterised by segmental narrowing of the distal thoracic aorta and/or proximal abdominal aorta, often accompanied by renal artery involvement. The condition may arise from genetic abnormalities, acquired factors, or idiopathic causes. In this study, we report the case of a 9-year-old boy who was found to have hypertension during a routine school health examination. Computed tomography angiography confirmed the diagnosis of middle aortic syndrome, revealing long-segment stenosis of the distal thoracic aorta. Following a comprehensive assessment, the patient underwent descending aortic reconstruction with a 14 mm Intergard knitted vascular graft. At the 6-month follow-up, imaging demonstrated satisfactory graft patency, and the patient's blood pressure remained well-controlled without the need for antihypertensive medications.