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Postprocedural Skin Perfusion Pressure Correlates With Clinical Outcomes 1 Year After Endovascular Therapy for Patients With Critical Limb Ischemia

Background: Although skin perfusion pressure (SPP) is widely used clinically to predict probability of wound healing, correlation between clinical outcomes and SPP has not been systematically studied. Methods: This subanalysis of the prospective multicenter OLIVE registry of patients who received infrainguinal endovascular therapy (EVT) for critical limb ischemia (CLI) assessed the association between clinical outcomes and postoperative SPP in 211 consecutive patients. Logistic regression analysis was performed, with amputation-free survival (AFS), modified major adverse limb events (MALEs), and complete wound healing as dependent variables and postprocedural SPP as independent variable. Result: Pre- and postprocedural SPP was 28 ± 11 and 46 ± 18 mm Hg, respectively. In logistic regression analysis, postprocedural SPP correlated with 1-year AFS (P = .018), modified MALEs (P < .001), and wound healing (P = .022). Conclusion: Postprocedural SPP correlates with clinical outcomes after EVT for patients with CLI.