Reducing surgical waiting time has been shown to be associated with a reduction in postoperative morbidity and mortality in this type of surgery. The use of a gradation of surgical emergencies makes it possible to prioritise them in an objective, consensual manner and to carry them out within a theoretical expected waiting time relative to the degree of urgency. The investigators hypothesise that exceeding the theoretical expected waiting time relative to the degree of urgency defined by the gradation of surgical emergencies is associated with an increase in postoperative morbidity and mortality in emergency surgery. The objective is to assess the impact on post-operative morbidity and mortality of waiting times exceeding the theoretical expected time by grading the surgical emergencies of patients undergoing emergency surgery.

Inclusion Criteria:

• age > 18 years old.
• Non-cardiac emergency surgery.

Exclusion Criteria:

• Minor patients
• Emergency cardiac surgery
• Patients under guardianship or curators
• Pregnant women
• Patients who object to their personal data being used in research

Patients requiring non-cardiac emergency surgery at the Amiens-Picardie University Hospital will be included. A posteriori grading will be performed according to an institutionally recognised gradation. Each grade is subject to a theoretical maximum time for surgical management. The surgical waiting time and the waiting time exceeding the theoretical expected time of the gradation will be analysed.