[Mid-aortic Syndrome Requiring Surgical Intervention during Infancy;Report of a Case].

Mid-aortic syndrome (MAS) is a very rare disease characterized by stenosis from the distal of the thoracic aorta to the abdominal aorta, in many case it is found as a result of hypertension and the like, and it needs surgical intervention in early childhood to adolescence. Here, we report a case of MAS which recognized prominent left ventricular myocardial hypertrophy from the early stage and needed surgical intervention in the infancy. We selected patch angioplasty using expanded polytetrafluoro ethylene( ePTFE) graft, and after surgery pressure gradient was disappeared.