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Long-term experience with duodenal switch in adolescents
Picard Marceau1, Simon Marceau, Simon Biron
1Department of Bariatric Surgery, Laval Hospital, Laval University, Chemin Ste-Foy, Quebec, Canada. picard.marceau@chg.ulaval.ca
Obesity Surgery
|September 14, 2010
Summary
Biliopancreatic diversion with duodenal switch (DS) offers significant weight loss and comorbidity resolution in adolescents. Despite potential complications in Prader-Willi syndrome (PWS) patients, the benefits of DS outweigh the risks for severe childhood obesity.
Area of Science:
- Pediatric Surgery
- Bariatric Surgery
- Metabolic Disorders
Background:
- Severe and extreme obesity in children and adolescents is a progressive disease requiring surgical intervention.
- The optimal timing and choice of surgical procedures for adolescent obesity remain subjects of debate.
- Biliopancreatic diversion with duodenal switch (DS) is a surgical option for severe pediatric obesity.
Observation:
- A 16-year study involved 13 adolescents (aged 15-17) undergoing open DS, with follow-up ranging from 2 to 16 years.
- Three patients with Prader-Willi syndrome (PWS) were analyzed separately due to distinct postoperative courses.
- Long-term follow-up assessed weight, comorbidities, nutritional status, reproductive health, and neurodevelopment.
Findings:
- In non-PWS adolescents, DS resulted in significant mean BMI reduction (55.9 to 28.8 kg/m²) and 82.1% excess weight loss, with sustained results.
- All comorbidities resolved except asthma, which improved; two reoperations were needed for obstruction and ulcer.
- PWS patients experienced longer hospitalizations, shorter-term benefits (approx. 5 years), and higher complication rates, including one death post-reoperation.
Implications:
- DS demonstrates substantial long-term benefits for severe adolescent obesity, including significant weight reduction and comorbidity cure.
- While DS is effective in adolescents, careful consideration of risks is necessary, particularly for those with PWS.
- The procedure supports improved quality of life and reproductive health in successfully treated adolescents.

