Endovascular therapy for critical limb ischemia

Area of Science:

• Vascular Surgery
• Interventional Cardiology
• Endovascular Medicine

Background:

• Critical limb ischemia (CLI) is an advanced stage of peripheral arterial disease (PAD) characterized by severe lower extremity pain, ulceration, or gangrene.
• Patients with CLI face high mortality (25% at 1 year) and amputation rates (25% at 1 year), often due to comorbidities.
• Traditional treatment involved bypass surgery, but endovascular techniques are transforming CLI management.

Purpose of the Study:

• To review contemporary and emerging endovascular therapies for critical limb ischemia.
• To highlight the shift in treatment paradigms towards less invasive, catheter-based interventions.
• To emphasize the importance of a multidisciplinary approach for limb salvage in CLI patients.

Main Methods:

• Review of current literature on endovascular treatments for CLI.
• Summary of established techniques such as balloon angioplasty, atherectomy, and bare-metal stenting.
• Discussion of novel technologies including drug-eluting stents, drug-coated balloons, and chronic total occlusion devices.

Main Results:

• Endovascular therapies are increasingly utilized for CLI, offering alternatives to traditional bypass surgery.
• Rapid advancements in catheter-based technologies are occurring, necessitating ongoing outcome evaluation.
• Multidisciplinary management, including aggressive medical therapy, wound care, and revascularization, is crucial for limb salvage.

Conclusions:

• Endovascular interventions represent a significant advancement in managing critical limb ischemia.
• Emerging technologies promise further improvements in revascularization and limb salvage rates.
• A comprehensive, multidisciplinary strategy remains essential for optimizing outcomes in CLI patients.