Metabolic Syndrome Modifies Changes in Body Composition After Sleeve Gastrectomy: A Quantitative CT Study

Area of Science:

• Bariatric Surgery Outcomes
• Metabolic Health and Obesity
• Body Composition Analysis

Background:

• Obesity is a complex metabolic disorder associated with significant health risks.
• Laparoscopic sleeve gastrectomy (LSG) is a common bariatric procedure for weight loss.
• The impact of LSG on body composition and metabolic parameters can vary based on individual metabolic status, such as the presence of metabolic syndrome (MS).

Purpose of the Study:

• To evaluate changes in body mass index (BMI), body composition, and laboratory markers after LSG.
• To compare these changes between obese patients with and without metabolic syndrome (MS).
• To analyze the correlations between body composition and clinical indicators, stratified by MS status.

Main Methods:

• Prospective study of 52 obese patients undergoing LSG.
• Collection of clinical and CT-based body composition data preoperatively and at 12-month follow-up.
• Categorization into metabolic syndrome (MS) and non-MS groups for comparative analysis.

Main Results:

• All patients showed significant improvements in weight, laboratory parameters, and body composition post-LSG.
• Visceral fat area and liver fat (LF) demonstrated the most substantial improvements.
• Greater reductions in BMI and postvertebral muscle fat were observed in the non-MS group. Postoperative changes in LF correlated with blood glucose in the MS group, while BMI changes correlated with triglycerides and LDL in the non-MS group.

Conclusions:

• LSG effectively improves body composition and metabolic parameters in obese individuals.
• The relationship between body composition changes and laboratory indicators post-LSG is dependent on the patient's metabolic status.
• Tailored interventions based on comprehensive body composition and metabolic assessments are crucial for optimizing outcomes in bariatric surgery patients with distinct metabolic phenotypes.