Characterisation of adverse events leading to unscheduled intensive care admissions

AEACs substantially contribute to unscheduled ICU admissions and are frequently preventable. The strong correlations observed highlight the need for improved early detection systems and targeted preventive strategies, particularly during low-supervision periods. Organisational factors are prominent and actionable. These findings support the implementation of enhanced patient monitoring, structured clinical workflows, and preventive safety measures. Future research should include multicentre validation and assess the economic burden and cost-effectiveness of interventions to reduce preventable ICU transfers.