Ultrasound Measure of Gastric Volume in Diabetic and Non Diabetic Patients Before General Anesthesia

Quantitative Ultrasound Assessment of Gastric Volume in Diabetic and Non Diabetic Patients Scheduled for a General Anesthesia

The main objective is to compare the frequency of a " full stomach " in diabetic patients compared with a control population, all the patients having followed the instructions of preoperative fast.

Inclusion Criteria:

• Patients aged over 18
• American Society of Anesthesiologists (ASA) classification 1 to 3
• Needed a general anesthesia for a programmed surgical intervention
• Respect of instructions of the pre-operative fasting;
• Affiliation to the social security;
• Consent form signed

Non inclusion Criteria:

• Pregnant or breastfeeding women
• Patients already operated or to be operated from the upper digestive tract (esophagus, stomach, duodenum)
• Patients treated with a prokinetic treatment and / or a level 3 analgesic

Exclusion criteria

• Unfeasibility to ultrasound measurement of antral area
• Failure to observe fasting instructions