Spinal cord stimulation for unreconstructible chronic limb ischaemia

Area of Science:

• Vascular Surgery
• Critical Limb Ischemia Treatment

Background:

• Limited prospective randomized studies exist for Supramalleolar bypass surgery (SCS).
• Existing microcirculatory studies and clinical experience suggest SCS has a positive effect on limb salvage.
• Recent advancements emphasize comprehensive arterial visualization for non-reconstructable limb assessment.

Purpose of the Study:

• To evaluate the efficacy of Supramalleolar bypass surgery (SCS) in treating critical limb ischemia (CLI).
• To compare SCS with traditional reconstructive surgical techniques.

Main Methods:

• Review of existing randomized studies, microcirculatory research, and clinical case series.
• Analysis of reported patency rates for femoro- and popliteo-pedal bypass surgery.
• Assessment of indications for SCS in CLI management.

Main Results:

• One small randomized study (51 patients) showed significant tissue loss reduction and a trend towards increased limb salvage with SCS.
• Microcirculatory studies confirm a positive effect of SCS.
• Extraordinary patency results for femoro- and popliteo-pedal bypass surgery suggest SCS should be reserved for unreconstructable CLI.

Conclusions:

• Supramalleolar bypass surgery (SCS) demonstrates encouraging results in reducing tissue loss and potentially increasing limb salvage.
• SCS is not a substitute for reconstructive surgery and should be reserved for patients with unreconstructable critical limb ischemia.
• Further prospective studies are needed to confirm the long-term efficacy and optimal application of SCS.