We assessed wound healing in patients on hemodialysis (HD) with critical limb ischemia (CLI). This study enrolled 267 patients (including 120 patients on HD and 147 patients not on HD) who underwent endovascular therapy (EVT) for CLI. The primary endpoint was wound-healing rate at two years. Secondary endpoints were time to wound healing, wound recurrence rate, and limb salvage at two years. The percentage of male and young patients was higher in the HD patients ( p < 0.01). A lower patency of the pedal arch after EVT was observed frequently in HD patients ( p < 0.01). The wound-healing rate was significantly lower in HD patients (79.5% vs. 92.4%, p < 0.001). Time to wound healing was significantly longer in HD patients (median 132 days vs. 82 days, p = 0.005). Wound recurrence was observed more frequently in HD patients (25.0% vs. 10.2%, p = 0.007). Limb salvage (72.8% vs. 86.4%, p = 0.002) was significantly lower in HD patients. In a cox proportional hazard model, HD was an independent predictor of wound healing (risk ratio (RR), 0.46; 95% confidence interval (CI), 0.33-0.62; p < 0.001) and wound recurrence (RR, 1.58; 95% CI, 1.11-2.22; p = 0.01). HD was independently associated with lower and delayed wound healing, and wound recurrence.
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