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Critical Limb Ischemia in the Dialysis-Dependent Patient: Infrainguinal Vein Bypass Is Justified

St. Mary's Hospital, London, UK

T. W. G. Carrell, MChir, FRCS

St. Mary's Hospital, London, UK

M. P. Jenkins, MS, FRCS

St. Mary's Hospital, London, UK

J. H. N. Wolfe, MS, FRCS

St. Mary's Hospital, London, UK

N. J. W. Cheshire, MD, FRCS

St. Mary's Hospital, London, UK, nick.cheshire{at}imperial.ac.uk

The combination of critical limb ischemia and end-stage renal failure (ESRF, ie, dialysis- dependent) represents severe systemic atherosclerosis and is associated with a very poor medium-term survival. Many nephrologists and surgeons advocate primary amputation. We examined the recent experience in this unit to determine whether infrainguinal bypass in these patients can be justified. Retrospective study of all patients with critical limb ischemia and ESRF undergoing surgery in a regional vascular and renal unit between January 1996 and May 2003. Forty-two patients with ESRF (median age 65 years) were referred with critical limb ischemia. Seventeen patients underwent 24 (7 bilateral) infrainguinal bypasses (17 autologous vein, 7 polytetrafluoroethylene [PTFE] conduit; tissue loss in 21/24, 88%), and 25 patients had primary major amputations of 32 limbs. Early occlusion occurred in 5 grafts (21%, all 5/5 PTFE). In-hospital mortality was 13% in the bypass group, 24% in the amputation group. Median in-hospital stay was 59 days in the bypass group, 46 days in the amputation group. Thirty-day, 1- and 2-year survival was 88%, 50%, and 33% in the bypass group; 83%, 39%, and 35% in the amputation group. The limb salvage rate was 66% at 1 year. Seventy-five percent (18/24) of operated on limbs (15/17 of vein grafts) avoided major amputation at follow-up (median 18 months) or death. The combination of critical limb ischemia and end- stage renal failure carries a poor medium-term survival independent of primary amputation or surgical revascularization. Infrainguinal bypass in selected cases with vein conduit can, however, allow the majority of these patients to avoid major limb amputation.

Vascular and Endovascular Surgery, Vol. 40, No. 5, 362-366 (2006)
DOI: 10.1177/1538574406293739


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