Surgical Interventions for Type 2 Diabetes in Obese Korean Patients

Overview

This multicenter retrospective study compared sleeve gastrectomy (SG) and Roux-en-Y gastric bypass (RYGB) in Korean patients with obesity and type 2 diabetes mellitus (T2DM). The study evaluated diabetes remission rates, weight loss, and postoperative complications over 1 and 2 years, providing population-specific evidence to guide surgical decision-making in East Asia.

Background

Obesity and T2DM are interrelated global health challenges, with rising prevalence worldwide and in East Asia. Metabolic/bariatric surgery (MBS) is an effective treatment for both conditions, with SG and RYGB being the most common procedures. While RYGB often yields greater weight loss and glycemic control, SG is simpler with fewer complications. However, evidence comparing these procedures in Asian populations remains limited, necessitating studies tailored to their unique clinical characteristics.

Data Highlights

Note: Specific numerical results were not included in the provided text.

Key Findings

• RYGB involves a smaller gastric pouch and longer alimentary and biliopancreatic limbs compared to SG’s tubular stomach creation.
• Primary outcome was complete T2DM remission at 1 and 2 years, defined by medication cessation and normalized HbA1c or fasting glucose.
• Inverse probability of treatment weighting was used to adjust for baseline differences between groups, accounting for multiple clinical covariates.
• Both procedures included concomitant hiatal hernia repair when present.
• Study addresses the need for East Asian-specific data due to unique genetic and phenotypic factors influencing diabesity outcomes.

Clinical Implications

This study highlights the importance of tailoring bariatric surgical approaches to the East Asian population with T2DM and obesity, considering their distinct clinical profiles. Understanding the comparative effectiveness and safety of SG versus RYGB can inform personalized surgical decisions to optimize diabetes remission and minimize complications. Clinicians should consider both metabolic benefits and procedural risks when selecting the surgical method.

Conclusion

The multicenter Korean study provides valuable population-specific insights into the comparative outcomes of SG and RYGB for T2DM remission and weight loss in obese patients. These findings support informed surgical decision-making tailored to East Asian patients with diabesity.

References

1. World Health Organization 2016 -- Global Obesity Prevalence
2. Global Diabetes Prevalence 1980-2014
3. Concept of Diabesity
4. Rising T2DM in East Asia
5. Metabolic/Bariatric Surgery Efficacy
6. International Guidelines for Metabolic Surgery
7. Asian BMI Thresholds for Obesity
8. Mechanisms of T2DM Remission Post-Surgery
9. Common MBS Procedures: SG and RYGB
10. SG Technical Simplicity and Safety
11. RYGB Weight Loss and Glycemic Outcomes
12. SLEEVEPASS and SM-BOSS Trials
13. Oseberg Trial on Diabetes Remission
14. Need for Asian Population-Specific Evidence
15. East Asian Phenotypic Differences in T2DM
16. Korean Gastric Cancer and Resectional Bypass
17. Comparable Outcomes of Resectional and Conventional RYGB
18. Korean Society for Metabolic and Bariatric Surgery Accreditation
19. ASMBS Criteria for Complications