From its origins, anaesthesia is a leading medical specialty for improving patient safety. However, perioperative adverse events remain frequent and may be preventable in 50% of cases. We conducted a collaborative retrospective study analysis of the insurance-database of the MACSF-Sou Medical insurance company to assess the perioperative risk.

Retrospective study, including all the statements declared by anaesthesiologists to the MACSF-Sou Medical insurance company. A description of risk in perioperative medicine was performed by the assessment of these statements by three experts member of the SFAR. All the statements concerning regional anaesthesia and dental injuries were excluded.

Eight hundred and seventy statements were analyzed. The patients involved were predominantly women (sex-ratio: 0.86), with a mean age of 56 years (±18). Three hundred and fifteen cardiac arrests, 157 severe systemic complications, 340 moderate complications and 106 conflicts were analyzed. Most of the events were revealed postoperatively (79.3%) and almost half of them after the discharge of the postanesthetic care unit. The medical consequences were considered as serious. Death followed 35.9% of the events declared. Relative or true hypovolaemia and stroke were responsible for a large part of postoperative mortality and morbidity.

Collaborating with insurance companies allows a relevant approach of the perioperative risk. The study highlighted the importance of the delayed complications and is a plea for a more intense implication of anaesthesia in the postoperative care with the aim of improving patient safety.