Sutureless vascular anastomoses by N-butyl-2 cyanoacrylate adhesive: an experimental animal study.

Background: The purpose of this animal study was to find out whether sutureless anastomoses using N-butyl-2-cyanoacrylate were effective in the suppression of neointimal hyperplasia or not.

Material And Methods: Ten male adult mongrel dogs were used in this animal study. The animals were randomly divided into a control group (n = 5) and a study group (n = 5). The study group underwent sutureless anastomoses using N-buthyl-2-cyanoacrylate adhesive. Infrarenal aortoaortic graft was interposed using polytetrafluoroethylene.

Results: In the study group, the mean intimal thickness at the proximal anastomosis was 27.4 +/- 1.94 microm and 27.4 +/- 1.51 microm at the distal anastomosis. In the control group, the mean intimal thickness was 138.4 +/- 5.02 mum at the proximal anastomosis and 67.6 +/- 6.42 microm at the distal anastomosis. Intimal thickness at the proximal and distal anastomoses in the control group was significantly (p < 0.001) greater than in the study group. Also, perianastomotic inflammation was more obvious in the control group compared to the study group (p < 0.01).

Conclusion: Sutureless anastomoses using with N-butyl-2-cyanoacrylate adhesive might be a good alternative to conventional suture technique.