Ultrasound assessment of the gastric content among diabetic and non-diabetic patients before elective surgery: a prospective multicenter study.

Background: Although diabetic gastroparesis could be responsible for delayed gastric emptying, there is conflicting evidence about the volume of gastric content in diabetic patients after preoperative fasting. We hypothesized that diabetic patients had an increased gastric content before anesthesia induction despite the following of fasting recommendations. We used ultrasound assessment of gastric content to evaluate this risk.