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J Korean Soc Vasc Surg. 2003 May;19(1):94-99. Korean. Case Report.
Kwon JN , Park DE , Chae KM , Roh BS , So BJ .
Department of Surgery, Wonkwang University Hospital, Iksan, Korea.
Department of Radiology, Wonkwang University Hospital, Iksan, Korea.

Blue digit syndrome, peripheral atheroembolism, and atheromatous embolization, all refer to microembolization and occlusion of the smaller distal arteries. Despite the longstanding recognition that atheroemboli arise from severely degenerative atherosclerotic plaques in the proximal circulation, many questions remain about the pathophysiology and natural history of this disorder. The threat to the survival of a single digit may not appear to be of great consequence, but repeated episodes of atheroembolism with continued destruction of the collateral circulation may portend disaster for the digit. Diagnostic efforts should be promptly concentrated on the location, stabilization and preferably, eradication of the embolic source. We report 2 cases of blue digit syndrome were managed by endarterectomy and intra-arterial stenting. Case 1: A 61-year-old man was presented with the blue toe syndrome at the third, fourth, fifth toes. The bilateral pedal pulses were normally palpable and ankle-brachial pressure indices (ABI) were within normal range. At the findings of duplex ultrasonography and CT angiography, right common femoral artery showed a focal eccentric stenosis with mural thrombus. The right common femoral artery endarterectomy was performed for the athersclerotic ulcerating plaque. Case 2: A 64-year-old man was presented with 11-month history of his left leg pain and 1-week history of his left third, fourth fingers. He had a history of flap operation for his left fourth finger tip due to necrosis. At the findings of angiography, multiple stenosis of left common iliac and left subclavian arteries were found. The lesion of left subclavian artery lesion was presumed to be the source of blue finger syndrome and treated with intra-arterial stent placement after balloon angioplasty.

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