D12. Monitoring Postoperative Weight Changes Following Reduction Mammoplasty in Adolescents

PURPOSE:Macromastia can limit women's ability to exercise. Reduction mammoplasty has been reported to improve exercise capability and stimulate weight loss. However, young, overweight women are often denied this procedure for risk of poor outcomes. Considering the lack of published quantitative data, we sought to examine change in weight and body mass index (BMI) in adolescent women following reduction mammoplasty. METHODS: Retrospective chart review was performed of patients under 21 years of age that underwent reduction mammoplasty at our institution from 2015 through 2019. RESULTS: Sixty-four patients with follow-up weight measurements were included in analysis. Median follow-up time of our sample was 48.5 months. Only 23 (35.9%) experienced a decrease in BMI at final follow-up compared to baseline. Patients classified as healthy weight preoperatively (BMI 18.5-24.9kg/m2) experienced a significant increase in BMI at 2-year, 3-year, 5-year, and final postoperative follow-up compared to baseline. Overweight (25.0-29.9kg/m2) or obese (≥30kg/m2) patients did not experience significant BMI change at final postoperative follow-up. CONCLUSION: BMI and weight trended upwards postoperatively across all BMI classifications. Reduction mammoplasty alone is not sufficient to stimulate weight loss. Healthy lifestyle changes should be encouraged to help prevent weight gain in adolescent women following reduction mammoplasty.