LSG vs OAGB: 7-Year Follow-up Data of a Randomised Control Trial and Comparative Outcome Based on BAROS Score

Area of Science:

• Bariatric Surgery
• Metabolic Surgery
• Obesity Management

Background:

• Morbid obesity presents significant health challenges requiring effective long-term management strategies.
• Laparoscopic sleeve gastrectomy (LSG) and one anastomosis gastric bypass (OAGB) are established bariatric procedures.
• Comparative long-term data on LSG versus OAGB outcomes are crucial for clinical decision-making.

Purpose of the Study:

• To compare the long-term efficacy of LSG and OAGB in patients with morbid obesity.
• To evaluate outcomes using the Bariatric Analysis Reporting and Outcome System (BAROS) score at 7 years post-surgery.
• To assess changes in body weight, quality of life, and comorbidity resolution.

Main Methods:

• A randomized controlled trial involving 201 patients (100 LSG, 101 OAGB) operated between 2013-2015.
• Analysis of total body weight (TBW), body mass index (BMI), percent excess weight loss (%EWL), and percent total weight loss (%TWL) at 7-year follow-up.
• Assessment of quality of life (QoL) scores, comorbidity resolution, and BAROS outcomes.

Main Results:

• At 7 years, both LSG and OAGB demonstrated significant reductions in TBW and BMI.
• OAGB achieved higher mean %EWL (59.99% vs. 50.78%) and %TWL (27.71% vs. 23.22%) compared to LSG.
• Significantly more OAGB patients (68.76%) achieved very good or excellent BAROS outcomes versus LSG patients (36.37%).

Conclusions:

• Both LSG and OAGB are effective long-term bariatric procedures for morbid obesity.
• OAGB demonstrates superior long-term weight loss and patient outcomes compared to LSG.
• The BAROS score highlights the significant advantage of OAGB in achieving excellent long-term results.