Surgery results in greater improvement in weight loss outcomes and weight associated comorbidities compared with non-surgical interventions , regardless of the type of procedures used .
When compared with each other , certain procedures result ed in greater weight loss and improvements in comorbidities than others .
Outcomes were similar between RYGB and sleeve gastrectomy , and both of these procedures had better outcomes than adjustable gastric b and ing .
For people with very high BMI , biliopancreatic diversion with duodenal switch result ed in greater weight loss than RYGB .
Isolated sleeve gastrectomy led to better weight-loss outcomes than adjustable gastric b and ing after three years follow-up .
BACKGROUND Bariatric ( weight loss ) surgery for obesity is considered when other treatments have failed .
The effects of the available bariatric procedures compared with medical management and with each other are uncertain .
This is an up date of a Cochrane review first published in 2003 and most recently up date d in 2009 .
OBJECTIVES To assess the effects of bariatric surgery for overweight and obesity , including the control of comorbidities .
Long-Term Results of a Prospective Comparison of Roux-en-Y Gastric Bypass versus a Variant of Biliopancreatic Diversion in a Non-Superobese Population (BMI 35–50 kg/m2)
Background This study presents late results of a previously published 2-year prospect i ve comparison between Roux-en-Y gastric bypass ( RYGBP ) versus biliopancreatic diversion with Roux-en-Y gastric bypass ( BPD-RYGBP ) in an exclusively non-superobese population . Methods From a cohort of 130 patients with a BMI of 35–50 kg/m2 , 65 were r and omly selected to undergo RYGBP and 65 to BPD-RYGBP .  All underwent follow-up evaluation at 1 , 3 , 6 , and 12 months postoperatively and every year thereafter . Results Follow-up at the eighth year was achieved in 60 % of the BPD-RYGBP and in 58 % of the RYGBP group ( p = 1.00 ) . Mean excess weight loss ( EWL% ) , was significantly higher following BPD-RYGBP ( 76.89 ± 1.53 ) as compared to RYGBP ( 67.17 ± 1.43 ) ( p = 0.0004 ) . The mean success rate ( percentage of patients with EWL% ≥50 % ) was significantly higher after BPD-RYGBP ( 95.85 ± 1.01 ) than RYGBP ( 75.91 ± 3.58 ) ( p = 0.0001 ) . No significant differences were observed for late non-metabolic complications . The incidence of anemia , iron deficiency , B12 deficiency , and low-ferritin levels was relatively high in both groups with not always significant differences . Severe protein malnutrition occurred in four patients ( three BPD-RYGBP and one RYGBP ) ( p = 0.37 ) . In only one BPD-RYGBP patient ( 1.54 % ) was revision surgery to RYGBP necessary , due to recurrent episodes of hypoproteinemia . The remaining patients were treated successfully with total parenteral nutrition and nutritional counseling . Conclusions Late results presented in this paper agree with the previously published 2-year results of the same patient cohort . Although both procedures are safe and effective  , BPD-RYGBP seems to prevail in terms of successful weight loss without a significantly higher incidence of metabolic and non-metabolic complications
Surgery results in greater improvement in weight loss outcomes and weight associated comorbidities compared with non-surgical interventions , regardless of the type of procedures used .
When compared with each other , certain procedures result ed in greater weight loss and improvements in comorbidities than others .
Outcomes were similar between RYGB and sleeve gastrectomy , and both of these procedures had better outcomes than adjustable gastric b and ing .
For people with very high BMI , biliopancreatic diversion with duodenal switch result ed in greater weight loss than RYGB .
Isolated sleeve gastrectomy led to better weight-loss outcomes than adjustable gastric b and ing after three years follow-up .
BACKGROUND Bariatric ( weight loss ) surgery for obesity is considered when other treatments have failed .
The effects of the available bariatric procedures compared with medical management and with each other are uncertain .
This is an up date of a Cochrane review first published in 2003 and most recently up date d in 2009 .
OBJECTIVES To assess the effects of bariatric surgery for overweight and obesity , including the control of comorbidities .