Table 1.

I-FEED scoring system

Scoring item	Intake	Feeling nauseated	Emesis	Exam	Duration of symptoms
Scoring	Tolerating oral diet (0)	None (0)	None (0)	No distention (0)	0–24 h (0)
	Limited Tolerance (1)	Responsive to treatment (1)	≥ episode of low volume (< 100 ml) and non-bilious (1)	Distention without tympany (1)	24–72 h (1)
	Complete intolerance (2)	Resistant to treatment (2)	≥ episode of high volume (> 100 ml) and bilious (2)	Significant distention with tympany (2)	> 72 h (2)

I-FEED, Intake, Feeling Nauseated, Emesis, Exam, and Duration of symptoms. The scoring system attributes 0–2 points for each of the 5 components based on the clinical presentation of the patient and categorizes patients into normal (0–2), postoperative GI intolerance (3–5), and postoperative GI dysfunction (≥ 6)