Long-term effect of bariatric surgery versus conventional therapy in obese Korean patients: A multicenter retrospective cohort study

Ji Yeon Park, Yoonseok Heo, Yong Jin Kim, Joong Min Park, Seong Min Kim, Do Joong Park, Sang Kuon Lee, Sang Moon Han, Kyung Won Shim, Yeon Ji Lee, Ja Youn Lee, Jin Won Kwon

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10 Scopus citations


Purpose: Long-term results following bariatric surgery compared to conventional treatments has never been reported in morbidly obese Korean patients. This study aimed to evaluate the long-term efficacy of bariatric surgery in morbidly obese Korean patients compared to conventional medical treatments. Methods: In this multicenter retrospective cohort study, we reviewed 137 obese subjects between January 2008 and February 2011 with a body mass index (BMI) > 30 kg/m2 who had more than 5 years of follow-up clinical data after bariatric surgery (surgery group, n = 49) or conventional treatment (conventional treatment group, n = 88). Anthropometric data and the status of comorbidities were compared between the 2 groups. Results: The median follow-up period was 72.1 months (range 19.3-109.7 months). At the last follow-up, the surgery group showed a greater amount of total weight loss than the conventional treatment group (24.9% vs. 2.8%, P < 0.001). The prevalence of diabetes and hypertension significantly decreased in the surgery group, while the conventional treatment group showed a marked increase in these comorbidities. In the surgery group, Roux-en-Y gastric bypass and sleeve gastrectomy achieved comparable long-term weight loss (26.5% vs. 22.4%, respectively; P = 0.087). Conclusion: In the long-term, bariatric surgery achieved and maintained significantly greater weight reduction, as well as a decrease in obesity-related comorbidities, than did conventional medical therapy in morbidly obese Korean patients.

Original languageEnglish
Pages (from-to)283-289
Number of pages7
JournalAnnals of Surgical Treatment and Research
Issue number6
StatePublished - Jun 2019

Bibliographical note

Publisher Copyright:
Copyright © 2019, the Korean Surgical Society.


  • Bariatric surgery
  • Gastrectomy
  • Gastric bypass
  • Morbid obesity


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