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Supplementary Material for: Impact of Kidney Disease on Peripheral Arterial Interventions: A Systematic Review and Meta-Analysis

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posted on 22.06.2020, 05:35 by Anantha-Narayanan M., Sheikh A.B., Nagpal S., Smolderen K.G., Turner J., Schneider M., Llanos-Chea F., Mena-Hurtado C.
Background: There are limited data on outcomes of patients undergoing peripheral arterial disease (PAD) interventions who have comorbid CKD/ESRD versus those who do not have such comorbid condition. We performed a systematic review and meta-analysis to analyze outcomes in this patient population. Methods: Five databases were searched for studies comparing outcomes of lower extremity PAD interventions for claudication and critical limb ischemia (CLI) in patients with CKD/ESRD versus non-CKD/non-ESRD from January 2000 to June 2019. Results: Our study included 16 observational studies with 44,138 patients. Mean follow-up was 48.9 ± 27.4 months. Major amputation was higher with CKD/ESRD compared with non-CKD/non-ESRD (odds ratio [OR 1.97] [95% confidence interval [CI] 1.39–2.80], p = 0.001). Higher major amputations with CKD/ESRD versus non-CKD/non-ESRD were only observed when indication for procedure was CLI (OR 2.27 [95% CI 1.53–3.36], p < 0.0001) but were similar for claudication (OR 1.15 [95% CI 0.53–2.49], p = 0.72). The risk of early mortality was high with CKD/ESRD patients undergoing PAD interventions compared with non-CKD/non-ESRD (OR 2.55 [95% CI 1.65–3.96], p < 0.0001), which when stratified based on indication, remained higher with CLI (OR 3.14 [95% CI 1.80–5.48], p < 0.0001) but was similar with claudication (OR 1.83 [95% CI 0.90–3.72], p = 0.1). Funnel plot of included studies showed moderate bias. Conclusions: Patients undergoing lower extremity PAD interventions for CLI who also have comorbid CKD/ESRD have an increased risk of experiencing major amputations and early mortality. Randomized trials to understand outcomes of PAD interventions in this at-risk population are essential.

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