The purpose of this observational study is to assess the efficiency of an e-learning in order to put into practice some preventive measures to avoid wrong site surgery during anesthesia.

Before the study, the investigators selected 7 preventive measures to avoid wrong site surgery during regional anesthesia combined or not with general anesthesia . These measures were learned to the entire anesthesia team (nurse, resident and anesthesiologist) during conventional meetings. An initial evaluation of the application of these measures will be carried out before the introduction of e-learning. This assessment will be conducted by nurses without the knowledge of the anesthetic team evaluated. After this initial evaluation, e-learning will be broadcast on the hospital intranet. Then a second evaluation of the application of the preventive measures will be carried out 6 month and 1 year after the introduction of e-learning.

Inclusion criteria:

• patient undergoing regional anesthesia with or without general anesthesia

Exclusion criteria:

• general anesthesia without regional anesthesia
• perimedullar anesthesia
• bilateral surgery

Patients undergoing anesthesia in Lapeyronie Hospital

NC