Paediatric Body Composition Measurement Techniques in Morbidly Obese Patients -- Insulin Resistance in the Morbidly Obese Adolescent -- Inflammation as a Trigger for Insulin Resistance and Cardiometabolic Disease -- Inpatient Lifestyle Interventions to Treat Childhood Obesity -- Conservative Treatment for Morbidly Obese Adolescents: The German Experience -- Comorbidities: Non Alcoholic Fatty Liver in Childhood Obesity -- Measurement of Atherosclerosis in Morbidly Obese Adolescents -- Arthritis and Joint Problems in Morbidly Obese Adolescents -- Bariatric Surgery in Adolescents: Practical Guidelines from a Pediatrician's Point of View -- Vitamin Deficiencies After Bariatric Surgery? -- Laparoscopic Gastric Banding -- Metabolic Surgery in Adolescents -- Situation in Sweden -- Experiences from Adolescents at the Viennese Center for Bariatric Surgery -- Is There an Indication for BPD-DS/BPD? What the Potential Advantages/Disadvantages to RYNGB? -- Psychological, Nutritional and Sports-Scientific Aspects of Obesity in Adolescence -- Current Guidelines of Bariatric Surgery in Adolescents -- Cardiovascular Risk in Childhood Obesity.