Table 1.

International Study Group for Pancreatic Surgery grading of delayed gastric emptying after pancreatic surgery

DGE grade	NGT required	Unable to tolerate solid oral intake at:	Vomiting/gastric distension	Use of prokinetics
A	4–7 days or reinsertion after PoD 3	PoD 7	Yes/no	Yes/no
B	8–14 days or reinsertion after PoD 7	PoD 14	Yes	Yes
C	>14 days or reinsertion after PoD 14	PoD 21	Yes	Yes

DGE, delayed gastric emptying; NGT, nasogastric tube; PoD, postoperative day.

To exclude mechanical causes of abnormal gastric emptying, the patency of either the gastrojejunostomy or the duodenojejunostomy should be confirmed by endoscopy or upper gastrointestinal gastrographin series.

Adopted from Wente et al.¹⁵