Bergamini T M, George S M, Massey H T, Henke P K, Klamer T W, Lambert G E, Miller F B, Garrison R N, Richardson J D
Department of Surgery, University of Louisville School of Medicine, KY, USA.
Ann Surg. 1995 May;221(5):507-15; discussion 515-6. doi: 10.1097/00000658-199505000-00008.
The authors determined the impact of an intensive surveillance program of autogenous vein bypasses on patency and limb salvage.
Surveillance protocols of vein bypasses can identify graft-threatening lesions to permit elective revisions before thrombosis. The authors compared follow-up based on clinically indicated procedures with intensive surveillance.
From 1985 to 1994, 615 autogenous vein bypasses (454 in situ, 161 reversed/composite) to popliteal (n = 169) and tibial (n = 446) arteries were performed for critical limb ischemia (n = 507), claudication (n = 88), and popliteal aneurysm (n = 20). Intensive surveillance of autogenous vein bypasses consisted of ankle brachial index and duplex scan with graft velocities measured at 1 month, 3 months, 6 months, and every 6 months subsequently. After surgery 317 bypasses had intensive surveillance, 222 bypasses were clinically indicated for follow-up, and 76 bypasses were excluded because follow-up or patency was less than 31 days.
Primary patency at 5 years was similar for bypasses treated by intensive surveillance (56%) and those treated with clinically indicated procedures (67%). Secondary patency and limb salvage at 5 years was significantly improved (p < 0.02) for bypasses followed by intensive surveillance (80% and 94%) compared with clinically indicated procedures (67% and 73%). Revision of patent bypasses was higher (p < 0.000001) for bypasses treated by intensive surveillance (61 of 70, 87%) compared with those treated with clinically indicated procedures (9 of 34, 26%). Secondary patency at 2 years was significantly higher (p < 0.02) for revision of patent bypasses (79%) compared with thrombosed bypasses (55%).
Long-term autogenous vein bypass patency and limb salvage is significantly improved by intensive surveillance, permitting identification and correction of graft threatening lesions before thrombosis.
作者确定自体静脉搭桥强化监测方案对通畅率和肢体挽救的影响。
静脉搭桥监测方案可识别威胁移植物的病变,以便在血栓形成前进行择期修复。作者比较了基于临床指征的随访与强化监测。
1985年至1994年,对腘动脉(n = 169)和胫动脉(n = 446)进行了615例自体静脉搭桥手术(454例原位搭桥,161例翻转/复合搭桥),治疗严重肢体缺血(n = 507)、间歇性跛行(n = 88)和腘动脉瘤(n = 20)。自体静脉搭桥的强化监测包括踝臂指数和双功超声扫描,在术后1个月、3个月、6个月及随后每6个月测量移植物血流速度。术后317例搭桥接受强化监测,222例搭桥根据临床指征进行随访,76例搭桥因随访时间或通畅时间少于31天而被排除。
强化监测组搭桥的5年原发性通畅率(56%)与临床指征组(67%)相似。强化监测组搭桥的5年继发性通畅率和肢体挽救率(分别为80%和94%)与临床指征组(分别为67%和73%)相比有显著改善(p < 0.02)。强化监测组搭桥(70例中的61例,87%)的通畅搭桥修复率高于临床指征组(34例中的9例,26%)(p < 0.000001)。通畅搭桥修复的2年继发性通畅率(79%)显著高于血栓形成搭桥(55%)(p < 0.02)。
强化监测可显著提高自体静脉搭桥的长期通畅率和肢体挽救率,能够在血栓形成前识别并纠正威胁移植物的病变。