Experimental substantiation of the fast method of microvascular anastomosis seamless connection using a self-expanding stent technology

Purpose. Studying the possibilities of forming a fast seamless method of microvascular anastomosis using a stent. Material and methods. The experiments were carried out on 30 white outbred rats weighing 400 g or more. A self-expanding stent was used to form a microvascular anastomosis. The experimental technique is as follows: under optical magnification, a midline laparotomy is performed, then, isolation, mobilization and preparation for of abdominal aorta for anastomosis are performed. After this, the abdominal aorta is clipped and intersected between the clips. A stenting of the lumen of the vessel is performed.

Results.According to our technique, 30 animals were operated on. Six animals died during stenting of the lumen of the vessel, two from thrombosis, three from bleeding due to the discrepancy between the size of the stent and the vessel, and one due to an overdose of anesthetic drugs. In the remaining animals in the postoperative period, complications were not detected. On the 10–30th day after surgery the animals were removed from the experiment using anesthesia.

Conclusions. The data obtained in the experiment indicates the possibility of connecting vessels through the use of a self-expanding stent for quick and reliable connection between small-diameter vessels end to end.

Key words: stent, microanastomosis, microsurgery, experimental surgery, vessels

Conflicts of interest. The authors have no conflicts of interest to declare. Funding. There was no funding for this study.

For citation: Dustov S.H., Reshetov I.V. Experimental substantiation of the fast method of microvascular anastomosis seamless connection using a self-expanding stent technology. Golova i sheya. Rossijskij zhurnal Head and neck Russian Journal. 2020;8(1):40–46 (in Russian).

 The authors are responsible for the originality of the data presented and the possibility of publishing illustrative material – tables, figures, photographs of patients.