Correlation Between the Number of Ghrelin-Secreting Cells in the Gastric Fundus and Excess Weight Loss after Sleeve Gastrectomy.

Background: Weight loss after laparoscopic sleeve gastrectomy (LSG) has been mainly attributed to the restriction of gastric volume; however; other factors may contribute to weight loss after LSG. This study aimed to investigate the correlation between the number of ghrelin-secreting cells in the gastric fundus and excess weight loss (EWL) at 12 months after LSG.

Methods: The surface area of the gastric fundus was measured postoperatively in square centimeter.