Bladder autoaugmentation in dogs: assessment of different laparoscopic methods.
OBJECTIVE
Bladder autoaugmentation was described in 1989, and the effectiveness of this surgical technique in the management of neurogenic bladder dysfunctions is still debated. Few experimental studies with different animals and diverse changes in technique have been described, making comparison of studies difficult. The aim of this study was to assess laparoscopic bladder autoaugmentation in dogs, allowing future studies to be developed using a uniform surgical technique and the results to be compared.


METHODS
Seven male mongrel dogs weighing from 15 to 20 kg under general anesthesia underwent urodynamic evaluation. Laparoscopic bladder autoaugmentation was then attempted either with or without the use of the intravesical silicone balloon.


RESULTS
The reproduction of the open technique caused complications. Changing the method of dissection was essential for completing the surgery. As different limitations appeared solutions were found as well. The use of the intravesical balloon requires the surgery to be different, although quite similar.


CONCLUSIONS
Laparoscopic bladder autoaugmentation is feasible in the canine model with and without the intravesical silicone balloon. The best way to perform the surgery was identified for both methods. Future studies can be developed using a uniform surgical technique, and the functional results will be comparable.
de Oliveira Querne
Fernando Augusto
FA
Division of Urology, University of Campinas, Campinas, São Paulo, Brazil. faoq75@gmail.com
da Silva
Daniel C
DC
Padovani
Guilherme P
GP
Coelho Alves Brasil
Lisa de Castro Ferreira
Lde C
Brandalise
Nelson A
NA
D'Ancona
Carlos A L
CA