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Sutureless venous microanastomosis using thermosensitive poloxamer and cyanoacrylate: experimental study on a rat model

Abstract : Introduction: Sutureless microvascular anastomoses could simplify the microvascular field, shortening operative time and improving the final outcome. The use of thermosensitive poloxamers (TP407) together with the application of cyanoacrylate as an alternative method for conventional sutures was well-documented for arteries, but not for veins. The purpose of our study was to prove the feasibility of this technique for venous anastomoses and compare it with the traditional hand-sewn technique on a rat model. Materials and methods: Twenty male Sprague-Dawley rats that weighed between 265 and 310 g were used. In the sutureless group (SG), 20 left external jugular veins (LEJV) end-to-end anastomoses were performed using a T704 and cyanoacrylate glue. They were compared to 20 right external jugular veins (REJV) anastomoses sutured with conventional 10-0 stitches (control group - CG). Diameters of veins, anastomosis time, and patency rate at 15 days were reported. Foreign body reaction was assessed histologically. Results: The mean diameter of the LEJV was 0.94 +/- 0.1 mm and 0.95 +/- 0.09 mm for the REJV. The mean anastomosis time was 11.9 +/- 1.37 min for the SG and 27.75 +/- 3.31 min for the CG. In the latter group, the immediate patency rate was 95% and 90% at 15 days. For the SG group, 90% of the anastomoses were patent immediately and 85% at 15 days. Conclusion: TP407 and cyanoacrylate could offer a fast and reliable technique for sutureless venous anastomoses. Before human application, effectiveness of this method remains to be confirmed in larger animals in a long-term follow-up. (C) 2021 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.
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Soumis le : jeudi 3 mars 2022 - 10:23:10
Dernière modification le : lundi 5 septembre 2022 - 15:30:22

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Q. Qassemyar, G. Michel, M. Gianfermi, M. Atlan, Eric Havet, et al.. Sutureless venous microanastomosis using thermosensitive poloxamer and cyanoacrylate: experimental study on a rat model. Journal of Plastic, Reconstructive and Aesthetic Surgery, Elsevier, 2022, 75 (1), pp.433-438. ⟨10.1016/j.bjps.2021.05.072⟩. ⟨hal-03595114⟩

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