Is there an association between urolithiasis and roux-en-y gastric bypass surgery?
Int. braz. j. urol
;
35(4): 432-435, July-Aug. 2009. tab
Artigo
em Inglês
| LILACS
| ID: lil-527201
ABSTRACT
Purpose:
Several studies have documented high incidence of urinary lithiasis after jejunoileal by-pass. Roux-en-y gastric bypass surgery (RYGB) is currently the most common bariatric procedure. Because of its difficult for absorption, RYGB has a potential risk to increase the incidence of lithiasis. This study was conducted in order to test the hypothesis that RYGB increases the incidence urolithiasis after 50 percent of excessive weight loss. Materials andMethods:
We performed a retrospective cohort study to evaluate 58 patients who underwent RYGB at the Obesity Service at Santa Casa de Misericordia de Sao Paulo, between 2000 and 2005, with minimum follow-up of 10 and maximum of 72 months, after the procedure.Results:
Forty-five (77.6 percent) patients had ¡Ý 50 percent loss of weight excess. There was no difference between the frequency of urolithiasis before and after the procedure, and nephrolithiasis was observed after surgery in only one patient, however this had been detected before the procedure.Conclusion:
In the period studied, RYGB does not seem to affect the incidence of urolithiasis after weight reduction. This may be due to its smaller malabsorptive component as compared with jejunoileal ¡°by-pass¡±, thereby possibly not significantly influencing the oxalate metabolism.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Derivação Gástrica
/
Urolitíase
Tipo de estudo:
Estudo de etiologia
/
Estudo de incidência
/
Estudo observacional
/
Estudo prognóstico
/
Fatores de risco
Limite:
Adulto
/
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Int. braz. j. urol
Assunto da revista:
Urologia
Ano de publicação:
2009
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Santa Casa de Sao Paulo/BR
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