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首页> 外文期刊>gefasschirurgie >Results of peripheral bypass surgery in patients with critical limb ischemia (CRITISCH registry)
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Results of peripheral bypass surgery in patients with critical limb ischemia (CRITISCH registry)

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Aim. On the basis of the CRITISCH registry outcomes in patients with critical limb ischemia (CLI) undergoing lower extremity bypass surgery were analyzed according to the site of distal anastomosis and type of bypass material. Patients and methods. A total of 284 patients with lower extremity bypasses consisting of 75 patients with bypasses above the knee (group 1), 80 with bypasses below the knee (group 2) and 129 crural or pedal bypasses (group 3) were included in the study. Altogether, 159 autologous saphenous vein grafts and 125 synthetic grafts were used. Results. There were no perioperative complications in 191 out of the 284 patients (67.3 ) and 236 of the 284 patients (83.1 ) had open bypasses at hospital discharge. An uneventful postoperative course was observed in 76 of the patients in group 1, 62.5 in group 2 and 65.1 in group 3. Amputation-free survival was 86 at 1 year in group 1, 65 in group 2 and 69 in group 3. For bypasses above the knee synthetic grafts were at least not inferior to vein grafts (amputation-free survival at 1 year: prosthetic bypasses 92 and saphenous vein grafts 71 , p = 0.147), whereas in the crural/pedal bypass group vein grafts showed better amputation-free survival at 1 nbsp;year (76 ) compared with synthetic bypasses (56 , p = 0.105). Patients with a PREVENT III (PIII) CLI risk score <= 3 exhibited better amputation-free survival at 1 year (78 ) compared to patients with a PIII CLI risk score of 4-7 (69 , p = 0.053). The same applied to patients with Rutherford class 4 vs. Rutherford class 6 CLI. Conclusion. In patients with CLI and above-knee bypasses, vein grafts confer no benefits compared with synthetic grafts for at least 1 year follow-up; however, in the case of more distal anastomoses vein grafts should be preferred.

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