Lower Extremity Revascularization in End-Stage Renal Disease

Area of Science:

• Vascular Surgery
• Nephrology
• Critical Care Medicine

Background:

• Critical limb ischemia (CLI) in end-stage renal disease (ESRD) patients presents a significant challenge for vascular surgeons.
• These dialysis patients exhibit high short-term mortality, irrespective of treatment strategy.
• Management options include local wound care, revascularization (endovascular or surgical), and amputation.

Purpose of the Study:

• To review the complex management strategies for ESRD patients with CLI.
• To evaluate the outcomes of different treatment modalities, focusing on limb salvage and survival.
• To inform decision-making regarding revascularization versus amputation in this high-risk population.

Main Methods:

• Review of current literature and clinical guidelines for managing CLI in ESRD patients.
• Analysis of outcomes associated with local wound care, endovascular therapy, surgical revascularization, and amputation.
• Consideration of patient-specific factors such as life expectancy and quality of available conduits.

Main Results:

• Local wound care may suffice for small wounds if infection is controlled and perfusion is adequate.
• Surgical revascularization offers high limb salvage but carries a 5-10% mortality risk and limited 5-year survival (28%).
• Endovascular therapy also has high perioperative mortality, with limb salvage rates comparable to surgery.
• Amputation is reserved for advanced CLI stages (WIfI system).
• Revascularization strategies are predicted to be more cost-effective and functionally beneficial than primary amputation.

Conclusions:

• Management of ESRD patients with CLI is complex, balancing limb salvage against high mortality risks.
• Revascularization can achieve limb salvage despite limited overall survival.
• Surgical bypass may be most beneficial for dialysis patients with a good life expectancy and suitable conduits.