Anatomy of the pre-pyloric vein and right gastroepiploic branches: Guiding the transection initiation site for sleeve gastrectomy

Figure 1 Diagram of anatomical landmarks A and B, and the distance between them. A: The pre-pyloric vein (or the pyloric ring if the pre-pyloric vein is unclear) is defined as anatomical landmark A; B: The first branch of the right gastroepiploic artery along the greater curvature that crosses the pylorus at the horizontal midline is defined as anatomical landmark B; C: Measurement of the distance between points A and B along the greater curvature of the stomach; D: Distance between A and B measured with a ruler intraoperatively.

Figure 2  Scatter plot of AB distance.

Figure 3 AB distance in different grouping states. ^aP < 0.05. NS: No significant; BMI: Body mass index; BP: Blood pressure.