Pulmonary aspiration of gastric content is one of the most feared perioperative complication of general anesthesia. Pregnant women are usually considered as high risk of pulmonary aspiration but there is no epidemiological study evaluating gastric content in pregnant women during the entire gestation periode.

The main objective is evaluating prevalency of "full stomach" in differents stages of pregnancy in fasted pregnant women.

Subjects will be recruited at Montpellier University Hospital, from fasted pregnant women before surgery or from ultrasound exam performed during pregnancy.

Inclusion criteria

An subject must fulfill all of the following criteria in order to be eligible for study enrollment:

• Aged at least 18 years old
• Pregnant women
• Fasted ( at least 6h for solid , 2h for clear fluid )

Exclusion criteria

• Previous Bariatric surgery / upper gastro-intestinal surgery
• Adult under protection

The Investigator would like to perform an ultrasound assessment of gastric content to every fasted pregnant women before surgery or during ultrasound exam happening during standard pregnancy monitoring.

NC