In recent decades, anaesthesia and surgery have undergone major scientific and technical developments. However, these improvements have not solved a recurring problem, communication deficiencies within teams in charge of surgical patients. Current figures show that 21% to 65% of accidents and errors in patient management during the perioperative period are related to communication problems. These problems occur when gaps arise in the continuity and coordination of care within teams. Some of the contributing factors to these gaps are emergency status of patients, staff shifts and handovers following patient transfers. To minimize the impact of these phenomena, it is important to improve standardization of information flow within operating theatres and to improve teamwork between anaesthetists and surgeons. This can be done through crew resource management training programs or simulation. This should ultimately contribute to minimise medical error and improve the overall quality of care provided to patients in operating theatres and during all the perioperative period.