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Early experience with venous arterialization for limb salvage in no-option patients with chronic limb-threatening ischemia. | LitMetric

Early experience with venous arterialization for limb salvage in no-option patients with chronic limb-threatening ischemia.

J Vasc Surg

Division of Vascular Surgery and Endovascular Therapy, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX. Electronic address:

Published: October 2022

AI Article Synopsis

Article Abstract

Objective: Chronic limb-threatening ischemia (CLTI) is associated with adverse limb outcomes and increased mortality. However, a small subset of the CLTI population will have no feasible conventional methods of revascularization. In such cases, venous arterialization (VA) could provide an alternative for limb salvage. The objective of the present study was to review the outcomes of VA at our institution.

Methods: We performed a single-institution review of 41 patients who had been followed up prospectively and had undergone either superficial or deep VA. The data collected included patient demographics, comorbidities, VA technique (endovascular vs hybrid), and WIfI (wound, ischemia, and foot infection) limb staging. Data were collected at 1-month, 6-month, and 1-year intervals and included the following outcomes: patency, wound healing, major adverse limb events, major amputation, and death. Descriptive statistics were used for analysis.

Results: The study group included 41 patients who had undergone successful open hybrid superficial or deep endovascular VA; 21 (51.2%) had undergone a purely endovascular procedure and 20 (48.8%), hybrid VA. The WIfI clinical stage was as follows: stage 4, 33 (80.5%); stage 3, 6 (14.6%); and stage 2, 1 (2.4%). Of the 41 patients, 24 (58.5%) had completed follow-up at 6 months and 16 (39%) at 1 year. At 1 year, the VA primary patency was 28.6% (95% confidence interval [CI], 0.15%-0.43%), primary assisted patency was 44.3% (95% CI, 0.27%-0.60%), and secondary patency was 67% (95% CI, 0.49%-0.80%). The complete wound healing rate was 2.7% (n = 1) at 1 month, 62.5% (n = 15) at 6 months, and 18.8% (n = 3) at 1 year. Overall wound healing at 1 year was 46.3% (n = 19). The number of major adverse limb events at 1 year was 15 (36.5%) and included 8 reinterventions (19.5%) and 7 major amputations (17%). The number of deaths was zero (0%) at 1 month and four (19%) at 6 months. Two deaths (9.5%) were attributed to COVID-19 (coronavirus disease 2019). No further deaths had occurred within 1 year. The limb salvage survival probability at 1 year was 81%.

Conclusions: These findings suggest that for a select subset of CLTI patients presenting with a high WIfI clinical limb stage and no viable options for conventional open or endovascular arterial revascularization, superficial and deep VA are feasible options to achieve limb salvage.

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Source
http://dx.doi.org/10.1016/j.jvs.2022.05.012DOI Listing

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