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Bacterial cellulose to reinforce urethrovesical anastomosis. A translational study
Maia, Guilherme Tavares da Silva; Albuquerque, Amanda Vasconcelos de; Martins Filho, Euclides Dias; Lira Neto, Filipe Tenório de; Souza, Veridiana Sales Barbosa de; Silva, Anderson Arnaldo da; Lira, Mariana Montenegro de Melo; Lima, Salvador Vilar Correia.
Afiliação
  • Maia, Guilherme Tavares da Silva; Universidade Federal de Pernambuco. Centro de Ciências da Saúde. Hospital das Clínicas, Departamento de Cirurgia, Serviço de Urologia. Recife. Brasil
  • Albuquerque, Amanda Vasconcelos de; Universidade Federal de Pernambuco. Centro de Ciências da Saúde. Departamento de Cirurgia, Núcleo de Cirurgia Experimental. Recife. Brasil
  • Martins Filho, Euclides Dias; Universidade Federal de Pernambuco. Centro de Ciências da Saúde. Departamento de Cirurgia, Hospital das Clínicas. Recife. Brasil
  • Lira Neto, Filipe Tenório de; Universidade Federal de Pernambuco. Centro de Ciências da Saúde. Departamento de Cirurgia, Hospital das Clínicas. Recife. Brasil
  • Souza, Veridiana Sales Barbosa de; Universidade Federal de Pernambuco. Centro de Ciências da Saúde. Departamento de Cirurgia, Núcleo de Cirurgia Experimental. Recife. Brasil
  • Silva, Anderson Arnaldo da; Universidade Federal de Pernambuco. Centro de Ciências da Saúde. Departamento de Cirurgia, Núcleo de Cirurgia Experimental. Recife. Brasil
  • Lira, Mariana Montenegro de Melo; Universidade Federal de Pernambuco. Centro de Ciências da Saúde. Departamento de Patologia. Recife. Brasil
  • Lima, Salvador Vilar Correia; Universidade Federal de Pernambuco. Centro de Ciências da Saúde. Departamento de Cirurgia, Hospital das Clínicas. Recife. Brasil
Acta cir. bras. ; 33(8): 673-683, ago. 2018. ilus, tab, graf
Article em En | VETINDEX | ID: vti-735111
Biblioteca responsável: BR68.1
ABSTRACT

Purpose:

To evaluate the efficacy of the cellulosic exopolysaccharide membrane (CEM) as a urethral reinforcement for urethrovesical anastomosis.

Methods:

Twenty eight rabbits were submitted to urethrovesical anastomosis with or without CEM reinforcement. The animals were divided into 4 groups C7, CEM7, C14 and CEM14 (C= only anastomosis or CEM = anastomosis + CEM), evaluated after 7 weeks, and 14 weeks. The biointegration and biocompatibility of CEM were evaluated according to stenosis, fistula, urethral wall thickness, urethral epithelium, rate of inflammation and vascularization.

Results:

Between the two experimental groups, the difference in the number of stenosis or urinary fistula was not statistically significant. The morphometric analysis revealed preservation of urethral lumen, well adhered CEM without extrusion, a controlled inflammatory process and implant vascularization. The urothelium height remained constant over time after CEM reinforcement and the membrane wall was thicker, statistically, after 14 weeks.

Conclusion:

The absence of extrusion, stenosis or urinary fistula after 14 weeks of urethrovesical anastomosis demonstrates cellulosic exopolysaccharide membrane biocompatibility and biointegration with tendency to a thicker wall.(AU)
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