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Updated: May 31, 2026

Assessing Therapeutic Angiogenesis in a Murine Model of Hindlimb Ischemia
Published on: June 8, 2019
Critical limb ischemia: endovascular strategies for limb salvage
Philip B Dattilo1, Ivan P Casserly
1University of Colorado, Aurora, CO 80045, USA.
Insights
Critical limb ischemia (CLI), a severe form of peripheral arterial disease, requires revascularization for limb salvage. An endovascular-first approach offers high success rates and low risks for CLI patients.
Area of Science:
- Vascular Surgery
- Interventional Cardiology
- Peripheral Arterial Disease Management
Background:
- Critical limb ischemia (CLI) is the most severe manifestation of peripheral arterial disease (PAD).
- Atherosclerosis, particularly affecting lower extremity tibial and foot vessels, is the primary cause of CLI.
- Limb salvage in CLI patients necessitates effective revascularization strategies.
Purpose of the Study:
- To present an endovascular-first clinical strategy for revascularizing patients with CLI.
- To summarize the clinical outcomes associated with endovascular therapy for CLI.
Main Methods:
- Review of clinical strategies focusing on an endovascular-first approach for CLI.
- Analysis of outcomes data for endovascular revascularization in CLI patients.
Main Results:
- Endovascular techniques are increasingly preferred over surgical bypass for CLI revascularization.
- Endovascular approaches demonstrate high technical success rates.
- Endovascular therapy is associated with low procedure-related morbidity and mortality.
Conclusions:
- An endovascular-first strategy is effective for treating critical limb ischemia.
- Endovascular revascularization is a safe and successful option for limb salvage in CLI.
- Contemporary practice favors endovascular over surgical revascularization for CLI.
Abstract:
Critical limb ischemia (CLI) represents the most severe clinical manifestation of peripheral arterial disease, defined as the presence of chronic ischemic rest pain, ulcers, or gangrene attributable to objectively proven arterial occlusive disease. The dominant pathology underlying CLI is atherosclerosis, distributed at multiple levels along the length of the lower extremity and with a propensity for involvement of the tibial vessels in the leg and the small vessels of the foot. To achieve limb salvage in patients with CLI, revascularization of the affected limb is generally required. In contemporary practice, endovascular techniques are rapidly replacing surgical bypass as the first option for revascularization for CLI based on high technical success rates and low rates of procedure-related morbidity and mortality. This review will describe the clinical strategy of the authors who have adopted an endovascular-first approach to revascularization in treating patients with CLI and summarize the clinical outcomes of endovascular therapy in this population.
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