Observance of Preoperative Fasting Time a Before-and-after Sensitization Campaign to Fasting Guidelines Study

"* 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."