Avalia？？o da síndrome de dumping em pacientes obesos mórbidos submetidos à opera？？o de bypass gástrico com reconstru？？o em Y de Roux

objective: the objective of this research was to determine the real prevalence and characteristics of dumping syndrome in a series of cases submitted to laparoscopic roux-en-y gastric bypass for morbid obesity. methods: we assessed dumping symptoms in 34 patients who had undergone that procedure; they filled a questionnaire, which included the dumping clinical diagnosis score proposed by sigstad. results: regarding patients' complaints, dumping prevalence was 44%. this number increased to 76% when applying the sigstad's score. the most frequent symptoms were "need for lying down" (88%), fatigue (69%) and sleepiness (69%). only 28% of the dumpers felt incapable of performing everyday activities. there was no difference in weight loss percentage between dumpers and non-dumpers. conclusion: the sigstad score is an usefull tool for the diagnostic of dumping, but a critic vision must be adopted when using in pacients submited to the roux en y gastric bypass. the dumping syndrome was frequent in this group, although usually under-diagnosed; it neither hampers patients' everyday activities considerably, nor helps in the weight-loosing process.