PMID- 36301873 OWN - NLM STAT- MEDLINE DCOM- 20221031 LR - 20221031 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 17 IP - 10 DP - 2022 TI - Comparison of arterial and venous allograft bypass in chronic limb-threatening ischemia. PG - e0275628 LID - 10.1371/journal.pone.0275628 [doi] LID - e0275628 AB - INTRODUCTION: Femoro-popliteal bypass with autologous vascular graft is a key revascularization method in chronic limb-threatening ischemia (CLTI). However, the lack of suitable autologous conduit may occur in 15-45% of the patients, necessitating the implantation of prosthetic or allogen grafts. Only little data is available on the outcome of allograft use in CLTI. AIMS: Our objective were to evaluate the long term results of infrainguinal allograft bypass surgery in patients with chronic limb-threatening ischemia (CLTI) and compare the results of arterial and venous allografts. METHODS: Single center, retrospective study analysing the outcomes of infrainguinal allograft bypass surgery in patients with CLTI between January 2007 and December 2017. RESULTS: During a 11-year period, 134 infrainguinal allograft bypasses were performed for CLTI [91 males (67.9%)]. Great saphenous vein (GSV) was implanted in 100 cases, superficial femoral artery (SFA) was implanted in 34 cases. Early postoperative complications appeared in 16.4% of cases and perioperative mortality (<30 days) was 1.4%. Primary patency at one, three and five years was 59%, 44% and 41%, respectively, while secondary patency was 60%, 45% and 41%, respectively. Primary patency of the SFA allografts was significantly higher than GSV allografts (1 year: SFA: 84% vs. GSV: 51% p = 0,001; 3 years: SFA: 76% vs. GSV: 32% p = 0,001; 5 years: SFA: 71% vs. GSV: 30% p = 0.001). Both primary and secondary patency of SFA allograft implanted in below-knee position were significantly higher than GSV bypasses (p = 0.0006; p = 0.0005, respectively). Limb salvage at one, three and five years following surgery was 74%, 64% and 62%, respectively. Long-term survival was 53% at 5 years. CONCLUSION: Allograft implantation is a suitable method for limb salvage in CLTI. The patency of arterial allograft is better than venous allograft patency, especially in below-knee position during infrainguinal allograft bypass surgery. FAU - Garbaisz, David AU - Garbaisz D AD - Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, Budapest, Hungary. FAU - Osztrogonacz, Peter AU - Osztrogonacz P AD - Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, Budapest, Hungary. FAU - Boros, Andras Mihaly AU - Boros AM AD - Department of Cardiology, Heart and Vascular Center, Semmelweis University, Budapest, Hungary. FAU - Hidi, Laszlo AU - Hidi L AUID- ORCID: 0000-0003-4128-0523 AD - Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, Budapest, Hungary. FAU - Sotonyi, Peter AU - Sotonyi P AUID- ORCID: 0000-0002-2216-4298 AD - Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, Budapest, Hungary. FAU - Szeberin, Zoltan AU - Szeberin Z AD - Department of Vascular and Endovascular Surgery, Heart and Vascular Center, Semmelweis University, Budapest, Hungary. LA - eng PT - Journal Article DEP - 20221027 PL - United States TA - PLoS One JT - PloS one JID - 101285081 SB - IM MH - Male MH - Humans MH - *Ischemia MH - Vascular Patency MH - Chronic Limb-Threatening Ischemia MH - Retrospective Studies MH - Saphenous Vein/surgery MH - Limb Salvage MH - Allografts MH - Treatment Outcome MH - *Peripheral Arterial Disease MH - Risk Factors PMC - PMC9612501 COIS- The authors have declared that no competing interests exist. EDAT- 2022/10/28 06:00 MHDA- 2022/11/01 06:00 PMCR- 2022/10/27 CRDT- 2022/10/27 13:43 PHST- 2022/02/14 00:00 [received] PHST- 2022/09/20 00:00 [accepted] PHST- 2022/10/27 13:43 [entrez] PHST- 2022/10/28 06:00 [pubmed] PHST- 2022/11/01 06:00 [medline] PHST- 2022/10/27 00:00 [pmc-release] AID - PONE-D-22-04564 [pii] AID - 10.1371/journal.pone.0275628 [doi] PST - epublish SO - PLoS One. 2022 Oct 27;17(10):e0275628. doi: 10.1371/journal.pone.0275628. eCollection 2022.