Stopped: The principal investigator has left Nice University Hospital and no other doctor has taken over for the study.
Gastric aspiration represents the third cause of perioperative death in France. In scheduled surgery, it can be prevented by preoperative fasting. The French and American guidelines recommend a fasting of 2 hours for clear liquids and 6 hours for solid food. However, these durations could be too short in case of delayed gastric emptying due to medications of diabetes for example. This latter condition has an increasing incidence. Numerous complications are related to chronic hyperglycemia including delayed gastric emptying also known as gastroparesis. Around one third of diabetic patients presents this complication. Gastric ultrasound represents a non-invasive method to explore the stomach. It allows the qualitative and quantitative evaluations of gastric content. As diabetic patients present a risk of non-empty stomach despite fasting,investigators decided to conduct a prospective observational study compare the appearance of the stomach assessed by ultrasonography between diabetic and non-diabetic patients before scheduled surgery
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Timeframe: Preoperative