Obesity Surgery

, Volume 27, Issue 12, pp 3110–3117 | Cite as

Long-Term Outcome of Bariatric Surgery in Morbidly Obese Adolescents: a Systematic Review and Meta-Analysis of 950 Patients with a Minimum of 3 years Follow-Up

  • Saeed Shoar
  • Habibollah Mahmoudzadeh
  • Mohammad Naderan
  • Shahram Bagheri-Hariri
  • Catherine Wong
  • Ahmad Shahabeddin Parizi
  • Nasrin Shoar
Original Contributions



Obesity in pediatric and adolescent population has reached a universal pandemic. This study aimed to summarize the literature on the longest available outcome of bariatric surgery in morbidly obese adolescents.


A systematic review was conducted to pool available data on the longest available (>3 years) weight loss and comorbidity resolution outcome in adolescent bariatric surgery.


A total of 14 studies reporting the result of bariatric surgery after 3 years in 950 morbidly obese adolescents were included. Preoperative age and BMI ranged from 12 to 19 years and from 26 to 91 kg/m2, respectively. Females were the predominant gender (72.8%). Laparoscopic roux-en-Y gastric bypass (n = 453) and adjustable gastric banding (n = 265) were the most common bariatric procedure performed. The number of patients at the latest follow-up was 677 (range from 2 to 23 years). On average, patients lost 13.3 kg/m2 of their BMI. Among comorbidities, only diabetes mellitus resolved or improved dramatically. Of 108 readmissions, 91 led to reoperation. There was a weight regain < 5 kg/m2 between 5 and 6 years of follow-up. Removal, exchange, or conversion of the previous band constituted the majority of the revisional procedures. Three deaths were reported. No long-term data was obtainable on nutritional deficiency or growth status of adolescents who underwent a bariatric procedure.


Although bariatric surgery is a safe and effective procedure in the treatment of adolescent morbid obesity, long-term data is scarce regarding its nutritional and developmental complication in this growing population of patients.


Adolescent Pediatric Obesity Morbidly obese Bariatric surgery Mid-term Systematic review Meta-analysis 


Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interest.

Statement of Informed Consent

Not relevant.

Statement of Human and Animal Rights

Not relevant.


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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Department of Medicine and SurgeryTehran University of Medical SciencesKashanIran
  2. 2.Department of SurgeryCancer Institute, Imam Khomeini Hospital Complex, Tehran University of Medical SciencesTehranIran
  3. 3.Department of Emergency MedicineImam Khomeini Hospital Complex, Tehran University of Medical SciencesTehranIran
  4. 4.Weight Loss Center, The Brooklyn HospitalBrooklynUSA
  5. 5.Department of Epidemiology and StatisticsUniversity of GroningenGroningenNetherlands
  6. 6.Department of MedicineShahid Beheshti Hospital, Kashan University of Medical SciencesKashanIran

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