Background

Although patients with a BMI of 30-35 kg/m2 have been newly included in the metabolic and bariatric surgery patient group, Comparative studies with patients with a BMI of 35 kg/m2 or higher are still insufficient.ObjectiveTo compare the changes in weight and metabolic syndrome components in the 1 year after sleeve gastrectomy in patients with BMI 30-35 kg/m2 and patients with BMI 35 kg/m2 or higher.

Methods

Retrospective chart reviews were conducted on patients who underwent sleeve gastrectomy at a single university hospital in Korea from 2019 to 2022. Changes in body weight and changes in the following metabolic syndrome components were investigated until 1 year after surgery; blood pressure, triglyceride, HDL cholesterol, waist circumference, and fasting blood glucose.

Results

A total of 46 patients who were followed up to 1 year after sleeve gastrectomy were included in the study. The mean age was 42.1+-10.1 years and 71% of women. The mean preoperative BMI was 37.5+-15.4kg/m2. The 1-year postoperative %weight loss was significantly higher in the BMI 30-35 kg/m2 group (mean, 28.4+-8.3kg/m2) compared to the BMI >35 kg/m2 group (mean, 33.1+-9.3 kg/m2). Metabolic syndrome components did not show any significant difference in the 1-year after surgery between both groups.

Conclusions

Compared to the BMI 30-35 kg/m2 group, the group with a BMI of 35 kg/m2 or higher showed a significantly higher %weight loss 1 year after sleeve gastrectomy. However, there was no significant difference in the degree of improvement in the metabolic syndrome components between both groups.