PMID- 34019990 OWN - NLM STAT- MEDLINE DCOM- 20211220 LR - 20221207 IS - 1097-6809 (Electronic) IS - 0741-5214 (Linking) VI - 74 IP - 5 DP - 2021 Nov TI - PROMISE I: Early feasibility study of the LimFlow System for percutaneous deep vein arterialization in no-option chronic limb-threatening ischemia: 12-month results. PG - 1626-1635 LID - S0741-5214(21)00737-0 [pii] LID - 10.1016/j.jvs.2021.04.057 [doi] AB - OBJECTIVE: We report the 6- and 12-month outcomes of the PROMISE I early feasibility study after treatment of no-option chronic limb-threatening ischemia (CLTI) with percutaneous deep vein arterialization (pDVA) using the LimFlow System. METHODS: Thirty-two patients with no-option CLTI, previously offered major amputation, were enrolled in this single-arm early feasibility study of the LimFlow pDVA System. No-option CLTI was defined as being ineligible for surgical or endovascular arterial revascularization. Patients were assessed for clinical status, pain, wound healing, and duplex ultrasound at 30 days, 6 months, and 12 months post-treatment. Primary endpoint analysis was amputation-free survival (AFS) at 30 days and 6 and 12 months. AFS was defined as freedom from above-ankle amputation of the index limb and freedom from all-cause mortality. Secondary endpoints evaluated included technical success of the procedure, and wound healing at 6 and 12 months. RESULTS: Of 32 enrolled patients, 31 (97%) were successfully treated with the LimFlow System at the time of the procedure, and two (6.3%) were lost to follow-up. The 30-day, 6-month, and 12-month AFS rates were 91%, 74%, and 70% respectively. The wound healing status of fully healed or healing was 67% at 6 months, and 75% at 12 months. Reintervention was performed in 16 patients (52%) with 14 (88%) of the maintenance reinterventions occurring within the first 3 months. The majority of reinterventions (n = 12; 75%), involved the arterial inflow tract proximal to the stented LimFlow circuit, and no in-stent stenoses were determined to have been the cause of reintervention. CONCLUSIONS: The LimFlow pDVA System was utilized in treating patients with no-option CLTI. A high technical success rate was observed, with a significant percentage of patients surviving free of major amputation at 12 months. These results suggest early safety and provide an initial assessment of the efficacy of the LimFlow pDVA System that supports the expansion of carefully executed studies to determine whether this is a viable option that can be used in this critically disadvantaged and growing patient population. CI - Copyright (c) 2021 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Clair, Daniel G AU - Clair DG AD - Department of Surgery, University of South Carolina, Columbia, SC. Electronic address: daniel.clair@uscmed.sc.edu. FAU - Mustapha, Jihad A AU - Mustapha JA AD - Advanced Cardiac and Vascular Amputation Prevention Centers, Grand Rapids, Mich. FAU - Shishehbor, Mehdi H AU - Shishehbor MH AD - Harrington Heart & Vascular Institute, University Hospitals Cleveland Medical Center and Case Western Reserve University School of Medicine, Cleveland, Ohio. FAU - Schneider, Peter A AU - Schneider PA AD - Division of Vascular and Endovascular Surgery, University of California San Francisco, San Francisco, Calif. FAU - Henao, Steve AU - Henao S AD - Division of Vascular Surgery, New Mexico Heart Institute, Albuquerque, NM. FAU - Bernardo, Nelson N AU - Bernardo NN AD - Medstar Washington Hospital Center, Washington, DC. FAU - Deaton, David H AU - Deaton DH AD - Division of Vascular Surgery, University of Pennsylvania, Philadelphia, Pa. LA - eng PT - Clinical Trial PT - Journal Article PT - Multicenter Study DEP - 20210518 PL - United States TA - J Vasc Surg JT - Journal of vascular surgery JID - 8407742 SB - IM MH - Aged MH - Aged, 80 and over MH - Amputation, Surgical MH - *Blood Vessel Prosthesis MH - Blood Vessel Prosthesis Implantation/adverse effects/*instrumentation MH - Chronic Disease MH - Endovascular Procedures/adverse effects/*instrumentation MH - Feasibility Studies MH - Female MH - Humans MH - Ischemia/diagnostic imaging/physiopathology/*surgery MH - Limb Salvage MH - Lower Extremity/*blood supply MH - Male MH - Middle Aged MH - Peripheral Arterial Disease/diagnostic imaging/physiopathology/*surgery MH - Prospective Studies MH - Regional Blood Flow MH - Retreatment MH - *Stents MH - Time Factors MH - Treatment Outcome MH - United States MH - *Vascular Access Devices MH - Vascular Patency OTO - NOTNLM OT - Amputation OT - Chronic limb-threatening ischemia OT - Critical limb ischemia OT - No-option chronic limb-threatening ischemia OT - Percutaneous deep vein arterialization EDAT- 2021/05/22 06:00 MHDA- 2021/12/21 06:00 CRDT- 2021/05/21 20:16 PHST- 2020/03/30 00:00 [received] PHST- 2021/04/17 00:00 [accepted] PHST- 2021/05/22 06:00 [pubmed] PHST- 2021/12/21 06:00 [medline] PHST- 2021/05/21 20:16 [entrez] AID - S0741-5214(21)00737-0 [pii] AID - 10.1016/j.jvs.2021.04.057 [doi] PST - ppublish SO - J Vasc Surg. 2021 Nov;74(5):1626-1635. doi: 10.1016/j.jvs.2021.04.057. Epub 2021 May 18.