J.Jpn. Surg. Soc.. 97(7): 492-497, 1996

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Feature topic

THE CLINICO-PATHOLOGICAL ASPECTS OF ACUTE EXACERBATION OF ARTERIOSCLEROSIS OBLITERANCE

Arteriosclerosis obliterance (ASO) is defined as the ischemic status of lower extremity produced by a stenotic and/or occlusive lesion of lumens of major arterial trees based on the pathology of atherosclerotic change. The sign and symptom of ASO are usually thought to be progressed slowly by natural progression process of atherosclerosis, however, in certain occasion, the progression of clinicopathological status of leg ischemia is acute as well as grave, so as to manifest rest pain or necrosis of the lower extremity. The basic mechanism of acute exacerbation of lower leg ischemia is attributed to the acute extended thrombus formation in artrial lumen. The factors influencing to the thrombus formation are represented as Virchow’s Trias such as the changes in arterial wall, the stasis of blood flow and the coagulability of blood. One of the characteristic feature associated with lnassive and extended ischelnia of lower leg is myonephropathic metabolic syndrome proposed by Haimovich in 1960. This syndrome is particularly seen immediately following the restoration of blood. How to the severely damaged leg and characterized by renal as well as systemic organs disorder. The relationship between the extent of muscle dalnage and the duration of ischemia is anaIysed through our data.

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