Final separation of the omentum from the proximal portion of the stomach is done by dividing the left gastroepiploic vessels, which at the highest proximal level on the stomach become the short gastric vessels. The vascular connections to and from the omentum are now maintained solely from the right gastric and right gastroepiploic vessels. In order for the omental pedicle graft to reach the brain without tension, further surgical tailoring of the omentum is carried out, with care being taken to ensure the preservation of a major omental artery and vein.