Registry on Obesity Surgery in Adolescents

Inclusion Criteria

• •BMI (or projected BMI) \> 40 kg/m² (projected BMI = weight over the age- and gender-specific BMI z-score defined as severe obesity corresponding at a projected BMI of 40 at the age of 18y) OR
• •BMI ((or projected BMI) \> 35 kg/m² (projected BMI = weight over the age- and gender-specific BMI z-score defined as severe obesity corresponding at a projected BMI of 35 at the age of 18y) + 1 or more of the following obesity-related comorbid conditions: Obstructive Sleep Apnea Syndrome, Non-alcoholic steatohepatitis, type 2 diabetes, hypertension, benign intracranial hypertension.
• •Minimum 6 months of organized weight loss attempts before surgery (multidisciplinary follow-up)
• •Completed most of their linear growth (Tanner stage ≥ IV, bone age ≥ 13 years in girls and ≥ 14 years in boys assessed by the Tanner and Whitehouse method)
• •Capability and willingness to adhere to postoperative guidelines and prolonged surveillance
• •Informed Consent Form (ICF) signed by patient and parents (or legal guardian)