The WHO safer surgery checklist time out procedure revisited: Strategies to optimise compliance and safety.

It is human nature to make mistakes, all people in all works make errors, but an amputation of the wrong leg or an inadvertently retained needle in the abdominal cavity are unanticipated incidents, that no physician in the world wants to experience. Such catastrophic events, except for the consequences on the patient's health and the physician's career, have severe financial implications on the healthcare system. Human nature, apart from making mistakes, is also able to find solutions to minimize adverse incidents. A systematic time-out in the operating room just before incision has been introduced the last two decades to help prevent wrong site surgeries and other surgical never events. Despite its effectiveness in increasing patient safety, compliance issues remain a major problem in its implementation and gaps in its daily use still occur. The current review presents patterns of wrong time-out procedures, emphasizes the problem of poor compliance and reviews the suggested strategies to increase compliance for safer operating rooms.