THE DESIGN OF THE ARTERIOVENOUS VASCULAR LOOP DOES NOT AFFECT ITS PATENCY: EXPERIMENTAL STUDY

To evaluate the effect of the design of a femoral vascular loop with anastomosis in the femoral artery of rabbits on the presence of flow (patency) after seven days. A total of 39 rabbits underwent arteriovenous microanastomosis using the microsurgical technique. Two loop designs were used: one circ...

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Bibliographic Details
Published in:Acta ortopedica brasileira 2020-05, Vol.28 (3), p.121-127
Main Authors: Saito, Mateus, Rezende, Marcelo Rosa DE, Santos, Gustavo Bispo Dos, Bittencourt, Thiago, Nunes, Maria DO Carmo, Mattar, Rames
Format: Article
Language:English
Subjects:
Arteriovenous Anastomosis
Femoral Vein
Original
ORTHOPEDICS
Vascular Grafting
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Summary:To evaluate the effect of the design of a femoral vascular loop with anastomosis in the femoral artery of rabbits on the presence of flow (patency) after seven days. A total of 39 rabbits underwent arteriovenous microanastomosis using the microsurgical technique. Two loop designs were used: one circular and the other angled. The parameters evaluated were presence or absence of flow, signs of hemolysis and hemodynamic changes. After seven days, flow was present in 68% of the angled loops and 75% of the circular loops (p > 0.05). There was a significant intragroup decrease in pCO and a significant increase in pH. For the other parameters evaluated, no significant differences between the two loop models were found. A reproducible vascular loop model was shown. There was no significant difference between the two vascular loop models about the presence of flow after seven days. .
ISSN:1413-7852
1809-4406
1809-4406
DOI:10.1590/1413-785220202803231477