Subintimal Angioplasty of Isolated Infragenicular Vessels in Lower Limb Ischemia: Long-term Results

Author:

Ingle Hemant,Nasim Ahktar,Bolia Amman,Fishwick Guy1,Naylor Ross,Bell Peter R.F.,Thompson Matthew M.

Affiliation:

1. Department of Radiology, Leicester Royal Infirmary, Leicester, England, UK

Abstract

Purpose: To assess the outcome of subintimal angioplasty in treating isolated infragenicular arterial disease in patients with severe lower limb ischemia. Methods: A retrospective study reviewed 67 consecutive patients (39 men; mean age 76 years, range 41–96) who underwent infragenicular subintimal angioplasty between March 1997 and May 2000 for ischemia in 70 limbs. The median length of occlusion was 6 cm (range 1–10) in the below-knee popliteal arteries, 4 cm (range 1–4) in the tibioperoneal trunk, 21 cm(range 1–35) in the anterior tibial artery, 10 (1–30) in the posterior tibial artery, and 5 (range 1–20) in the peroneal artery. Results: The technical and clinical success rates were 86% and 80%, respectively. In the 10 (14%) patients with a technical failure, 3 underwent successful bypass, 4 had an amputation, 1 had a lumbar sympathectomy, and 2 were treated conservatively. Of the 4 (6%) limbs that did not achieve clinical success, 2 patients required femorodistal bypass and their ulcers improved; in the other 2, ulcerations did not heal completely. The cumulative limb salvage rate and freedom from critical limb ischemia (CLI) quantified by Kaplan-Meier life-table analysis were 94% and 84% at 36 months. Mortality rates were 19% at 1 year, 43% at 2 years, and 51% at 3 years. In a subgroup analysis, the rate of CLI was significantly lower in nondiabetics (4%) and than in diabetics (24%, p=0.02), but neither survival nor amputation rates were significantly different. Conclusions: Subintimal angioplasty is a safe and effective procedure for treating isolated crural vessels in patients with severe lower limb ischemia.

Publisher

SAGE Publications

Subject

Cardiology and Cardiovascular Medicine,Radiology, Nuclear Medicine and imaging,Surgery

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