Microsurgical arterial anastomosis in young and adult rats: an evolutive and comparative study

• Autor(a) principal: Santos,Maria Mercês
• Data de Publicação: 2022
• Outros Autores: Tannuri,Ana Cristina Aoun, Lacerda,Adriana Vasconcelos, Gonçalves,Josiane de Oliveira, Ricardi,Luiz Roberto Schlaich, Tannuri,Uenis
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Acta Cirúrgica Brasileira (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502022000600202
• topic: Microcirculation; Anastomosis, Surgical; Microsurgery; Blood Flow Velocity; Models, Animal

ABSTRACT Purpose: To evaluate the caliber of an arterial micro-anastomosis in the young growing animal using a continuous suture technique. Additionally, late morphological changes and blood flows distal to the anastomosis were evaluated. Methods: Seventy-four Wistar rats were submitted to laparotomy to access the aorta for blood flow measurement. The aorta was sectioned using microsurgery technique and an end-to-end anastomosis with continuous suture. After a period of six months to one year, the anastomosis was checked. Results: Regarding the size of the aortas, comparing the pre- and postoperative values, there was an increase of 13.33% in adult animals and 25% in young animals, without any difference in the blood flows. Conclusions: The arteries of young rats show signs of growth at the site of the anastomosis performed with continuous suture.