Our findings indicate the role of p22phox-based NADH/NADPH oxidase and the local renin-angiotensin system in the pathogenesis of TAA. Statin and ARB might have inhibitory effects on the formation of aneurysms via the suppression of NADH/NADPH oxidase.

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Infrarenal aortic lesions caused by PAU were generally localized, and endovascular grafting appears to be a feasible alternative to surgical repair.

Congenital interruption of the inferior vena cava is an uncommon vascular anomaly. In this setting, the appearance of deep vein thrombosis is very rare because associated azygous or portal continuation develops as a collateral system for venous return. The authors present a case of infrahepatic interruption of the inferior vena cava in a 21-year-old man who presented with symptoms of deep vein thrombosis. Clinical features and prognosis of this entity are discussed.