Weight Loss Analysis According to Different Formulas after Sleeve Gastrectomy With or Without Antral Preservation: a...

Area of Science:

• Bariatric Surgery
• Surgical Outcomes
• Obesity Management

Background:

• Standardized measurement of weight loss after bariatric surgery is crucial for reporting outcomes.
• Various weight loss measurement formulas exist, necessitating evaluation for different surgical techniques.

Purpose of the Study:

• To analyze weight loss after sleeve gastrectomy with or without antrum preservation using different measurement formulas.
• To compare the effectiveness of sleeve gastrectomy at 3 cm versus 8 cm from the pylorus.

Main Methods:

• Prospective randomized study of 60 patients undergoing sleeve gastrectomy.
• Patients were divided into two groups: 3 cm from pylorus (n=30) and 8 cm from pylorus (n=30).
• Weight loss variables including BMI, excess weight loss (%EWL), percentage of excess BMI loss (%PEBMIL), and total weight loss (%TWL) were calculated at 3, 6, and 12 months.

Main Results:

• Both groups showed similar weight evolution, with mean BMIs approaching expected values at 12 months.
• The 3 cm group demonstrated higher %TWL and %PEBMIL, indicating superior weight loss compared to the 8 cm group.
• %EWL favored the 3 cm group, with fewer suboptimal results.

Conclusions:

• Sleeve gastrectomy with antrum preservation (3 cm group) yields better weight loss outcomes than the 8 cm group, particularly when assessed by %EWL and %TWL.
• While both techniques are effective in reducing BMI, standardized, dynamic measurement tables specific to surgical techniques are essential for accurate outcome assessment.