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Updated: Jun 21, 2026

Assessing Therapeutic Angiogenesis in a Murine Model of Hindlimb Ischemia
Published on: June 8, 2019
Is atherectomy the best first-line therapy for limb salvage in patients with critical limb ischemia?
Gabriel Loor1, Christopher L Skelly, Carl-Magnus Wahlgren
1Department of Vascular Surgery, University of Chicago, Chicago, Illinois, USA.
Insights
Open bypass surgery offers better limb salvage rates than atherectomy for critical limb ischemia patients. This study found bypass superior for limb preservation, especially in cases with tissue loss.
Area of Science:
- Vascular Surgery
- Interventional Cardiology
- Peripheral Artery Disease
Background:
- Critical limb ischemia (CLI) poses a significant risk of limb loss.
- Treatment options for CLI include open bypass surgery and atherectomy.
- Comparing the efficacy of these interventions for limb salvage is crucial.
Purpose of the Study:
- To compare the effectiveness of atherectomy versus open bypass surgery for limb salvage in patients with critical limb ischemia.
- To evaluate outcomes based on lesion severity (TASC C and D).
Main Methods:
- Retrospective review of 99 consecutive procedures for CLI between January 2003 and October 2006.
- Procedures included surgical bypass (n=59) and atherectomy (n=33).
- Analysis focused on 1-year primary patency and limb salvage rates.
Main Results:
- Both bypass and atherectomy showed similar 1-year primary patency rates (64% vs 63%).
- Open bypass achieved a significantly higher 1-year limb salvage rate (87% vs 69%; P = .004).
- In the tissue loss subgroup, bypass also demonstrated superior limb salvage (79% vs 60%; P = .04).
Conclusions:
- Open bypass surgery may be a more effective first-line therapy than atherectomy for limb salvage in CLI patients.
- These findings suggest a preference for bypass in managing CLI, particularly when tissue loss is present.
Objective:
To determine the efficacy of atherectomy for limb salvage compared with open bypass in patients with critical limb ischemia.
Methods:
Ninety-nine consecutive bypass and atherectomy procedures performed for critical limb ischemia between January 2003 and October 2006 were reviewed.
Results:
A total of 99 cases involving TASC C (n = 43, 44%) and D (n = 56, 56%) lesions were treated with surgical bypass in 59 patients and atherectomy in 33 patients. Bypass and atherectomy achieved similar 1-year primary patency (64% vs 63%; P = .2). However, the 1-year limb salvage rate was greater in the bypass group (87% vs 69%; P = .004). In the tissue loss subgroup, there was a greater limb salvage rate for bypass patients versus atherectomy (79% vs 60%; P = .04).
Conclusions:
Patients with critical limb ischemia may do better with open bypass compared with atherectomy as first-line therapy for limb salvage.
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