Background

Laparoscopic sleeve gastrectomy (LSG) is frequently performed bariatric procedure for treating morbid obesity through reduction of stomach volume.Aim of the Study: The purpose of this study was to evaluate the volumetric changes of gastric reservoir one year after LSG using multislice spiral computed tomography (MSCT) and to investigate their relationship with weight loss.

Methods

This a prospective study that included 40 consecutive obese patients presented to General Surgery Department, Kafr Elsheikh University Hospital, during the period from November 2018 to November 2020. All patients were referred for abdominal MSCT with volumetric measurement of gastric pouch one month and one year after surgery after performing LSG.

Results

Forty patients (28 female and 12 males) were included in the study. There was a statistically significant difference throughout the whole follow-up period (P-value =0.05) regarding weight loss, BMI reduction, percentage of excess weight loss, and percentage of excess body mass index loss (%EBMIL). Using multi-slice computer tomography, the gastric volume was assessed. Significant increase in total gastric reservoir volume (82.9±11 and 171.6± 23.6 ml at 1 and 12 months, respectively) was observed. However, our results showed no significant correlation (r= 0.131, P= 0.491) between the percentage of excess weight loss and the increase of gastric reservoir volume after 1 year of surgery.

Conclusions

Sleeve dilatation is a common finding after SG even after performing a narrow gastric pouch, yet dilatation was not correlated with insufficient weight loss after 1 year after SG long.