ArticleObesity surgery2026
Effectiveness of Bariatric Surgery Versus Nutritional Interventions in Adolescents: A Retrospective Cohort Study.
Article in Obesity surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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12 authors.
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Abstract
introductionBariatric surgery offers sustained weight loss for adolescents with severe obesity, but long-term data on its effectiveness is limited. Our objective was to compare outcomes in adolescents who underwent bariatric surgery versus those who received nutritional intervention.
methodsWe conducted a retrospective cohort study of individuals under 18 who underwent bariatric surgery within < institution name> between 2011 and 2021. A comparison group included adolescents with class II obesity or higher and who had ≥ 3 dietitian visits. Anthropometric measures and blood test results (hemoglobin, TSH, vitamin D, folic acid, B12) were collected over five years. Multivariate linear mixed models assessed group differences over time.
resultsThe cohort included 278 adolescents: 152 in the surgery group and 126 in the nutritional group. Over five years, BMI decreased from 44 to 32 in the surgery group but remained largely unchanged in the nutritional group (45.5 to 44), p < 0.001. At year 5, the surgery group had lower hemoglobin (12.45 vs. 13.46, p < 0.001) and declining B12 levels (p < 0.001). TSH levels decreased modestly in both groups, more so in the surgery group (p = 0.04).
conclusionsBariatric surgery in adolescents led to significant, sustained BMI reductions but was associated with declines in some nutritional markers, highlighting the need for ongoing monitoring.
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