Abstract: As a new model of patient management, the Critical Care Outreach Services can effectively improve the prognosis of patients. This paper introduces the objectives of Critical Care Outreach Services and relevant patient classification, and then summarizes the related studies at home and abroad on the Critical Care Outreach Services in critical care outreach activities, early warning system, patients and medical system. Following this, it proposes prospects of further researches on the Critical Care Outreach Services.

Key words: Critical Care Outreach Services; rapid response system; prognosis