Arteriosclerosis Obliterans Apr 2026

Medical Report: Arteriosclerosis Obliterans (ASO) Arteriosclerosis Obliterans (ASO) is a chronic, occlusive arterial disease characterized by the hardening and narrowing of large- and medium-sized arteries, primarily affecting the lower extremities. Outside of specific regions like Japan, it is more commonly referred to as . 1. Disease Overview and Pathophysiology

: The condition is primarily caused by atherosclerosis , where fatty deposits (plaque) accumulate in the arterial intima (innermost layer). This leads to stenosis (narrowing) or complete occlusion, limiting blood flow to tissues. arteriosclerosis obliterans

: It most commonly occurs in men over the age of 45. While rare under age 50, its incidence peaks in the 60s for aortoiliac disease and the 70s for distal arterial disease. 2. Clinical Presentation arteriosclerosis obliterans