Experimental model of bladder instability in rabbits



Título del documento: Experimental model of bladder instability in rabbits
Revista: International braz j urol
Base de datos: PERIÓDICA
Número de sistema: 000296486
ISSN: 1677-5538
Autors: 1


Institucions: 1Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Medicina de Botucatu, Botucatu, Sao Paulo. Brasil
Any:
Període: Ene-Feb
Volum: 29
Número: 1
Paginació: 62-71
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en inglés OBJECTIVE: Propose a new experimental model of bladder instability in rabbits after partial bladder obstruction. MATERIALS AND METHODS: Thirty North Folk male rabbits, weighting 1,700 to 2,820 g (mean: 2,162 g) were studied. The animals were distributed in 2 experimental groups, formed by 15 rabbits each: Group 1 - clinical control. In this group there was no surgical intervention; Group 2 - bladder outlet obstruction. In this group, after anesthetizing the animal, urethral cannulation with Foley catheter 10F was performed and then an adjustable plastic bracelet was passed around the bladder neck. It was then adjusted in order to not constrict the urethra. The following parameters were studied in M1 - pre-operative period; M2 - 4 weeks post-operatively moments: 1)- urine culture; 2)- cystometric study; 3)- serum creatinine and BUN. RESULTS: Bladder weight was 2.5 times larger in the group with obstruction than in the control group. Cystometric evaluation showed a significant increase in maximal vesical volume in the final moment at Group G2. However, there was no statistically significant difference among the groups studied. There was no statistically significant difference between maximal detrusor pressure and vesical compliance in the different moments or in the studied groups. There was an absence of uninhibited detrusor contractions in all the animals in group 1, and involuntary contractions were detected in 93% of group 2 animals. There was no significant variation in BUN and serum creatinine either among the groups or in the
Disciplines Medicina
Paraules clau: Cirugía,
Medicina experimental,
Vejiga,
Conejos,
Urodinámica,
Obstrucción uretral,
Vejiga neurogénica
Keyword: Medicine,
Experimental medicine,
Surgery,
Bladder,
Rabbits,
Urodynamics,
Urethral obstruction,
Neurogenic bladder
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