8. In the 2007 outcome analysis by Schouten et al (n=101) found out that the effect on weight is dependent of the indication for revision. Weight recidivism patient's BMI decreased from 40.5 Kg/m2 to 30.1 Kg/m2; excessive weight loss patients BMI increased from 22.3 Kg/m2 to 25.3 Kg/m2; and adequate response patients to VBG but with severe eating difficulties remained stable (29.8 Kg/m2 to 29.0 Kg/m2) all after a mean follow-up of 38 months.