Title

Failed Prior Endovascular Interventions Do Not Affect 30-day Cardiovascular or Limb-related Outcomes of Infrainguinal Bypasses for Chronic Limb Threatening Ischemia

Document Type

Journal Article

Publication Date

1-1-2020

Journal

Annals of Vascular Surgery

DOI

10.1016/j.avsg.2020.07.028

Abstract

© 2020 Elsevier Inc. Background: It is often hypothesized that failed prior endovascular intervention could adversely affect the outcome of subsequent infrainguinal bypass in the corresponding limb. However, this perception is not well supported in the literature because of conflicting data. The aim of this study is to address this controversial issue via analysis of a multicenter prospectively collected database. Methods: Patients who underwent infrainguinal bypass for chronic limb threatening ischemia (CLTI) were identified in the targeted American College of Surgeons National Surgical Quality Improvement Program database from 2011 to 2017. These patients were stratified into 4 groups: first time femoral-popliteal bypass, femoral-popliteal bypass after failed prior endovascular revascularization, first time femoral-tibial bypass, and femoral-tibial bypass after failed prior endovascular revascularization. Thirty-day outcomes including mortality, graft patency, major amputations, and major organ dysfunction were measured. Results: We identified 7,044 patients who underwent surgical bypasses for CLTI. Patients were mostly well matched among the 4 groups except for differences in sex, hypertension, and preoperative renal function. In terms of major adverse cardiovascular events and major adverse limb events, femoral-popliteal or femoral-tibial bypasses after failed prior endovascular intervention had comparable 30-day outcomes to first-time bypasses. However, patients with failed prior endovascular intervention had increased rates of postoperative wound infection, required significantly more blood transfusions, and had longer operative time. Conclusions: Failed prior endovascular intervention does not adversely affect 30-day outcomes of subsequent infrainguinal bypass surgery in mortality, limb salvage, or other major cardiovascular complications.

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