PMID- 33407009 OWN - NLM STAT- MEDLINE DCOM- 20220309 LR - 20221207 IS - 1477-0377 (Electronic) IS - 1358-863X (Linking) VI - 26 IP - 2 DP - 2021 Apr TI - Inframalleolar bypass for chronic limb-threatening ischemia. PG - 187-194 LID - 10.1177/1358863X20978468 [doi] AB - The aims of this study were to analyze the results of inframalleolar bypass for chronic limb-threatening ischemia (CLTI) and to identify outcome-predicting factors. All consecutive patients undergoing inframalleolar bypass for CLTI between 2015 and 2018 were included in this retrospective, single-center study. Outflow artery was the most proximal patent vessel segment in continuity with inframalleolar arteries. Bypasses originating from the popliteal artery were defined as 'short bypasses'. Sixty patients underwent inframalleolar bypass, with four patients undergoing bilateral procedures, making a total of 64 limbs included. The mean age was 73 +/- 14 and 52 (81%) were male. The great saphenous vein was the preferred conduit (n = 58, 91%), in a devalvulated fashion (n = 56, 88%). Superficial femoral artery was the most common inflow artery for 'long' grafts (n = 22, 34%), while popliteal artery was the inflow artery for all 'short' grafts (n = 25, 39%). Dorsalis pedis artery was chosen as an outflow artery in 41 patients (63%). Median follow-up was 21 months. Two-year primary and secondary patency, limb salvage, amputation-free survival, and overall survival rates were 67 +/- 6%, 88 +/- 4%, 84 +/- 4%, 72 +/- 6%, and 85 +/- 4%, respectively. At multivariate analysis, dialysis was an independent predictor for poor primary patency (HR, 4.6; 95% CI, 1.62-13.05; p = 0.004), whereas a short bypass was independently associated with an increased primary patency (HR, 0.3; 95% CI, 0.10-0.89; p = 0.03). In conclusion, bypass grafting to the inframalleolar arteries resulted in good patency rates, limb salvage and overall survival. Dialysis patients had lower primary patency but still had good limb salvage and survival. Short bypass was a predictor of improved primary patency. FAU - Benedetto, Filippo AU - Benedetto F AD - Unit of Vascular Surgery, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico G. Martino, University of Messina, Messina, Italy. FAU - Spinelli, Domenico AU - Spinelli D AUID- ORCID: 0000-0002-5002-0435 AD - Unit of Vascular Surgery, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico G. Martino, University of Messina, Messina, Italy. FAU - Pipito, Narayana AU - Pipito N AD - Unit of Vascular Surgery, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico G. Martino, University of Messina, Messina, Italy. FAU - Barilla, David AU - Barilla D AUID- ORCID: 0000-0002-4675-7901 AD - Unit of Vascular Surgery, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico G. Martino, University of Messina, Messina, Italy. FAU - Stilo, Francesco AU - Stilo F AD - Vascular Surgery Unit, Campus Bio-Medico of Rome University, Rome, Italy. FAU - De Caridi, Giovanni AU - De Caridi G AD - Unit of Vascular Surgery, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico G. Martino, University of Messina, Messina, Italy. FAU - Barilla, Chiara AU - Barilla C AD - Unit of Vascular Surgery, Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Policlinico G. Martino, University of Messina, Messina, Italy. FAU - Spinelli, Francesco AU - Spinelli F AD - Vascular Surgery Unit, Campus Bio-Medico of Rome University, Rome, Italy. LA - eng PT - Journal Article DEP - 20210106 PL - England TA - Vasc Med JT - Vascular medicine (London, England) JID - 9610930 SB - IM MH - Amputation, Surgical MH - *Chronic Limb-Threatening Ischemia MH - Humans MH - *Ischemia/diagnostic imaging/surgery MH - Limb Salvage MH - Male MH - Popliteal Artery/diagnostic imaging/surgery MH - Retrospective Studies MH - Saphenous Vein MH - Treatment Outcome MH - Vascular Patency OTO - NOTNLM OT - below-the-ankle bypass OT - chronic limb-threatening ischemia (CLTI) OT - infrainguinal bypass OT - inframalleolar bypass OT - lower limb revascularization OT - pedal artery EDAT- 2021/01/08 06:00 MHDA- 2022/03/11 06:00 CRDT- 2021/01/07 05:41 PHST- 2021/01/08 06:00 [pubmed] PHST- 2022/03/11 06:00 [medline] PHST- 2021/01/07 05:41 [entrez] AID - 10.1177/1358863X20978468 [doi] PST - ppublish SO - Vasc Med. 2021 Apr;26(2):187-194. doi: 10.1177/1358863X20978468. Epub 2021 Jan 6.