FIGURE 2.

Schematic diagram of 2 different scenarios for pancreatic fluid flow. (A) Pancreatic fluid flows into the gastric tube and (B) pancreatic fluid flows out through the pancreatic drain tube. When pancreatic fluid is not drained through pancreatic drainage tube or is predominately from the pancreatic stump, it will get into gastrointestinal anastomosis and lower gastrointestinal tract, so the amylase in gastric fluid would increase and the amylase in pancreatic drainage tube would decrease (A). On the other hand, when pancreatic fluid is drained through pancreatic drainage, the amylase level in the pancreatic drain fluid increases, while that in the gastric drain fluid decreases (B).