No fistula | Drainage amylase on or after postoperative day 3 is not three times than upper normal serum amylase value |
Grade A | No specific treatment was required even though drainage amylase on or after postoperative day 3 is three times than upper normal serum amylase value |
Grade B | Requires a change management or adjustment of clinical pathway (antibiotics, total parenteral nutrition, or repositioning of drainage tubes) |
Grade C | Requires major charge in the clinical pathway; clinical intervention is aggressive and often in the ICU setting |