LAUSR

Many factors come together probabilistically to affect clinician response to critical events in the operating room; no 2 critical events are alike. These factors involve 4 primary domains: (1) the event itself, (2) the individual anesthetist(s), (3) the operating room team, and (4) the resources available and environments in which the event occurs. Appreciating these factors, anticipating how they create vulnerabilities for error and poor response, and actively addressing those vulnerabilities (before events occur as well as during) will help clinicians manage critical event response more effectively and avoid errors.