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Meta-Analysis
. 2021 Aug 1;98(2):297-307.
doi: 10.1002/ccd.29688. Epub 2021 Apr 6.

End-stage renal disease patients undergoing angioplasty and bypass for critical limb ischemia have worse outcomes compared to non-ESRD patients: Systematic review and meta-analysis

Desireé B Dawson  1 , Nelson A Telles-Garcia  1 , Jessica L Atkins  1 , George S Mina  1 , Adrian P Abreo  2 , Chiranjiv S Virk  3 , Paari S Dominic  1
Affiliations
Meta-Analysis

End-stage renal disease patients undergoing angioplasty and bypass for critical limb ischemia have worse outcomes compared to non-ESRD patients: Systematic review and meta-analysis

Desireé B Dawson et al. Catheter Cardiovasc Interv. .

Abstract

Background: End-stage renal disease (ESRD) is associated with increased morbidity and mortality following lower extremity amputation for critical limb ischemia (CLI). Angioplasty and bypass are used in ESRD patients with CLI; however, the treatment of choice remains controversial. We compared the long-term outcomes in patients with CLI undergoing angioplasty or bypass to evaluate the differences between patients with ESRD and those without ESRD.

Methods: Established databases were searched for observational studies comparing outcomes following bypass or angioplasty for CLI in patients with ESRD to those in non-ESRD patients. End points included survival, limb salvage, amputation-free survival (AFS), and primary and secondary patency at 1-year post-procedure. Pooled odds ratios (OR) with 95% confidence intervals (CI) were calculated using a random effect model.

Results: We included 20 studies with a total of 24,851 patients. ESRD patients compared to non-ESRD patients with CLI had significantly lower survival post-angioplasty (OR 0.51, 95% CI 0.36-0.72, p < .001) and post-bypass (OR 0.26, 95% CI 0.15-0.45, p < .001). ESRD patients had lower rates of limb salvage post-bypass (OR 0.33, 95% CI 0.21-0.53, p < .001) and post-angioplasty (OR 0.54, 95% CI 0.41-0.70, p < .001). AFS was significantly lower in ESRD patients compared to non-ESRD patients following angioplasty (OR 0.48, 95% CI 0.32-0.71, p < .001) and bypass (OR 0.28, 95% CI 0.16-0.47, p < .001) despite no significant differences in primary patency. ESRD patients had overall worse secondary patency post-angioplasty and/or bypass (OR 0.54, 95% CI 0.32-0.94, p = .03) compared to non-ESRD patients. A meta-analysis of four studies directly comparing survival in ESRD patients with CLI based on whether they underwent angioplasty or bypass showed no difference (OR 0.93, 95% CI 0.64-1.35, p = .69).

Conclusion: ESRD patients have worse survival, limb salvage, and AFS outcomes following angioplasty and bypass for CLI compared to non-ESRD patients. Large randomized controlled trials comparing these two modalities of treatment in this patient population are needed for further clarity.

Keywords: dialysis; patency; peripheral arterial disease.

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References

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