In the investigator's institution, physician and nurse anesthetists are supposed to use a window in the electronic anesthesia record for this purpose. This form should be completed at the end of each case. If an event according to the AMDS definitions occurs at least once during anesthesia, the respective box (e.g., "intraoperative hypotension") should be ticked in the form. The anesthesia record cannot be closed unless the quality form is filled, which can notably be done even in advance "on the quick" by ticking "no events". Considering the numerous duties of anesthesia staff at the end of a case, the investigators questioned the reliability of data generated during this busy phase.