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Multidisciplinary approach achieves limb salvage without revascularization in patients with mild to moderate ischemia and tissue loss.

Abstract：

OBJECTIVE:The Society for Vascular Surgery Wound, Ischemia, and foot Infection (WIfI) classification system has been validated to predict wound healing and limb salvage of patients with peripheral artery disease (PAD). Our goal was to evaluate the association between WIfI stage and wound healing, limb salvage, and survival in a select cohort of patients with PAD and tissue loss undergoing an attempt of wound healing without immediate revascularization (conservative approach) in a multidisciplinary wound program. METHODS:Veterans with PAD and tissue loss were prospectively enrolled in our Prevention of Amputation in Veterans Everywhere (PAVE) program. Limbs were stratified to a conservative, revascularization, primary amputation, and palliative limb care approach based on the patient's fitness, ambulatory status, perfusion evaluation, and validated pathway of care. Rates of wound healing, wound recurrence, limb salvage, and survival were retrospectively analyzed by WIfI clinical stages (stage 1-4) in the conservative group. Cox regression modeling was used to estimate clinical outcomes by WIfI stage. RESULTS:Between January 2006 and October 2017, there were 961 limbs prospectively enrolled in our PAVE program. A total of 233 limbs with 277 wounds were stratified to the conservative approach. WIfI staging distribution included 19.7% stage 1, 20.2% stage 2, 38.6% stage 3, and 21.5% stage 4. All ischemia scores were classified as 1 or 2. Advanced wound interventions and minor amputations were performed on 40 limbs (16.6%) and 57 limbs (23.7%), respectively. Average long-term follow-up was 41.4 ± 29.0 months. Complete wound healing without revascularization was achieved in 179 limbs (76.8%) during 4.4 ± 4.1 months. Thirty-four limbs (14%) underwent deferred revascularization because of a lack of complete wound healing. At long-term follow-up, wound recurrence per limb was 39%. Overall limb salvage at long-term follow-up was 89.3%. Stratified by WIfI stage, there was no statistically significant difference between groups for wound healing (P = .64), wound recurrence (P = .55), or limb salvage (P = .66) after adjustment for significant patient, limb, and wound characteristics. CONCLUSIONS:In select patients with mild to moderate ischemia and tissue loss, a stratified approach can achieve acceptable rates of wound healing and limb salvage, with limited need for deferred revascularization. WIfI clinical staging did not predict wound healing, limb salvage, or survival in this cohort.

journal_name

J Vasc Surg

journal_title

Journal of vascular surgery

authors

Gabel J,Bianchi C,Possagnoli I,Mehta R,Abou-Zamzam AM Jr,Teruya T,Kiang S,Bishop V,Valenzuela A

doi

10.1016/j.jvs.2019.07.103

subject

Has Abstract

pub_date

2020-06-01 00:00:00

pages

2073-2080.e1

issue

eissn

0741-5214

issn

1097-6809

pii

S0741-5214(19)32329-8

journal_volume

pub_type

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Multidisciplinary approach achieves limb salvage without revascularization in patients with mild to moderate ischemia and tissue loss.