PMID- 34076565 OWN - NLM STAT- MEDLINE DCOM- 20220328 LR - 20221207 IS - 0001-5458 (Print) IS - 0001-5458 (Linking) VI - 122 IP - 2 DP - 2022 Apr TI - The impact of an angiosome-targeted revascularization on healing rate, limb salvage and survival in critical limb threatening ischemia. PG - 107-115 LID - 10.1080/00015458.2021.1881337 [doi] AB - OBJECTIVE: According to the angiosome concept ulcer healing and limb salvage should be superior if direct arterial flow to the source vessel of an affected angiosome is established compared to indirect flow where the angiosome is perfused by means of collaterals. The objective of this study was to evaluate the impact of direct versus indirect revascularization (DR/IR) in endovascular versus bypass surgery on ulcer healing, limb salvage and mortality. MATERIALS AND METHODS: A retrospective analysis of both endovascular and bypass distal (below the knee) lower limb revascularizations for chronic limb-threatening ischemia (CLTI) between 1993 and 2014 was performed. RESULTS: The study population consisted of 126 endovascular and 198 bypass procedures. DR and IR were achieved in 57.4% and 42.6% limbs respectively. DR was not superior to IR regarding all three major endpoints when endovascular and bypass procedures were analyzed separately. Endovascular and bypass procedures resulted in comparable healing rates. All patients who did not achieve wound healing (HR 7.49; 95% CI 4.25-13.20, p = .0001) or needed to be treated with a bypass (HR 1.79; 95% CI 1.05-3.05, p = .034) were at an increased risk for major amputation. Increased mortality rate was noted after endovascular procedures (HR 1.45; 95% CI 1.04-2.00, p = .026). CONCLUSION: This retrospective study with comparable results for DR and IR did not support the angiosome concept. Achieving wound healing remains critical in patients with CLTI to reduce major amputation rates. Overall the implications of the angiosome concept seem to be limited due to its feasibility in patients with CLTI. FAU - Croo, Alexander AU - Croo A AD - Department of Thoracic and Vascular Surgery, Ghent University Hospital, Ghent, Belgium. FAU - Versyck, Timothy AU - Versyck T AD - Department of Thoracic and Vascular Surgery, Ghent University Hospital, Ghent, Belgium. FAU - Duinslaeger, Alec AU - Duinslaeger A AD - Department of Thoracic and Vascular Surgery, Ghent University Hospital, Ghent, Belgium. FAU - Harth, Charlotte AU - Harth C AD - Department of Thoracic and Vascular Surgery, Ghent University Hospital, Ghent, Belgium. FAU - Vermassen, Frank AU - Vermassen F AD - Department of Thoracic and Vascular Surgery, Ghent University Hospital, Ghent, Belgium. FAU - Randon, Caren AU - Randon C AD - Department of Thoracic and Vascular Surgery, Ghent University Hospital, Ghent, Belgium. LA - eng PT - Journal Article DEP - 20210621 PL - England TA - Acta Chir Belg JT - Acta chirurgica Belgica JID - 0370571 SB - IM MH - Amputation, Surgical MH - *Endovascular Procedures/adverse effects MH - Humans MH - Ischemia/surgery MH - *Limb Salvage/methods MH - Retrospective Studies MH - Risk Factors MH - Time Factors MH - Treatment Outcome MH - Wound Healing OTO - NOTNLM OT - Angiosome concept OT - direct and indirect revascularization OT - major amputation OT - wound healing EDAT- 2021/06/03 06:00 MHDA- 2022/03/29 06:00 CRDT- 2021/06/02 12:16 PHST- 2021/06/03 06:00 [pubmed] PHST- 2022/03/29 06:00 [medline] PHST- 2021/06/02 12:16 [entrez] AID - 10.1080/00015458.2021.1881337 [pii] AID - 10.1080/00015458.2021.1881337 [doi] PST - ppublish SO - Acta Chir Belg. 2022 Apr;122(2):107-115. doi: 10.1080/00015458.2021.1881337. Epub 2021 Jun 21.