The goal of this before and after observational study is to evaluate the impact of a global sensitization campaign (targeted on surgeons, anesthetist and patients) about pre-operative fasting in an adult population. The main questions it aims to answer are:

• Does the sensitization campaign reduce fasting time?
• Does reduce fasting time increase quality of post-operative recovery?

Sensitization campaign will be performed between the before and after phases, it will include:

• Planned and repeated mandatory on site lecture about pre-operative guidelines for surgeons, anesthetists and paramedics.
• Reminder display in surgical wards and consults.
• Individualized fasting cards for patients.
• Short message service reminder on pre-operative fasting rules for patients.
• Medical fasting prescription with clear fasting times.

Inclusion Criteria:

- Adult undergoing a surgical procedure.

Exclusion Criteria:

• Already intubated patient before surgery.
• Redo surgery during the same hospitalization
• Medical indication of fasting (e.g : occlusive syndrome)
• Patient unable to anwser the questionnaire.
• Patient under lawful protection
• Pregnant women
• Minor (<18 years)

All patients undergoing a surgical procedure (scheduled or urgent) at the CHU d'Angers (France) during the inclusion period.