Baseline BMI is a Strong Predictor of Nadir BMI after Adolescent Gastric Bypass

摘要: Objective Surgical treatment of extreme obesity may be appropriate for some adolescents. We hypothesized that surgical weight loss outcomes differ by preoperative level (body mass index [BMI] ≥99th percentile). Study design A longitudinal assessment clinical characteristics from 61 adolescents who underwent laparoscopic Roux-en-Y gastric bypass at a single pediatric center 2002 until 2007 was performed. Patients were categorized into 1 3 BMI groups: group 1, BMI=40.0 to 54.9 (n = 23); 2, BMI=55.0 64.9 21); 3, BMI=65.0 95.0 17). Changes in and cardiovascular risk factors between baseline year evaluated using repeated-measures mixed linear modeling. Results the overall cohort (60.2 ± 11 kg/m 2 ) decreased 37.4% after surgery ( P .8762). The rate change absolute units significantly varied class (group × time interaction, , 38 5 47 9 respectively. One surgery, only 17% patients achieved nonobese ). Significant improvements systolic diastolic blood pressure .0007), triglyceride levels Conclusions Laparoscopic resulted improvement or reversal decrease approximately 37% all patients, regardless starting BMI, surgery. timing adolescent is an important consideration, because "late" referral bariatric highest values preclude obesity.