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  • Title: In-situ bypass surgery on arteriographically invisible vessels detected by Doppler-ultrasound for limb salvage.
    Author: Eiberg JP, Hansen MA, Jørgensen LG, Rasmussen JB, Jensen F, Schroeder TV.
    Journal: J Cardiovasc Surg (Torino); 2004 Aug; 45(4):375-9. PubMed ID: 15365518.
    Abstract:
    AIM: The aim of this paper was to evaluate our primary experience with bypass surgery on arteries only visible on Doppler-ultrasound in patients suffering from critical lower limb ischemia. METHODS: During a study period of 10 months, Doppler-ultrasound routinely supplemented digital subtraction arteriography (DSA) whenever it failed to reveal patent runoff vessels suitable for in-situ saphenous vein bypass surgery. If an arteriographically invisible runoff artery was detected on Doppler-ultrasound and the patient was eligible for surgery, a bypass procedure was performed. All patients were facing a lower limb amputation due to critical limb ischemia (tissue loss, SVS/ISCV-category 5). Postoperatively the patients were followed according to a standard graft surveillance program, including clinical examination, ankle pressure measurements and a color Doppler-ultrasound at discharge and after 1, 6 and 12 months. RESULTS: Fifty-one in-situ saphenous vein bypasses were performed, 5 (10%) on arteriographically occult runoff vessels detected only on Doppler-ultrasound. After a 12-month follow-up, 3 bypasses were still patent and only one patient had an amputation. One bypass occluded after 6 months but the patient stayed asymptomatic. CONCLUSIONS: Doppler-ultrasound permits in-situ by-pass surgery on arteriographically invisible vessels reducing the proportion of inoperable patients by 10%.
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