Abstract: Objective To summarize the best evidence regarding rewarming management in critically ill adult hypothermia patients, so as to provide reference for clinical practice.Methods Evidence-based nursing helped to identify the research problem. According to the "6S" model of evidence, the evidence regarding hypothermia rewarming management of adult critically ill patients was searched from the upper level of "evidence pyramid". Clinical decisions, recommended practices, evidence summary, clinical guidelines and expert consensus were included in this study.Two researchers evaluated the quality of the literature independently and extracted the evidence content of the literature which met the quality standard. Results Eight articles were included in this study, including 2 clinical decisions, 1 recommended opinion, 3 evidence summary and 2 expert consensus. A total of 22 pieces of evidence from 5 dimensions were summarized, including temperature monitoring (3), rewarming goal (2), rewarming measures selection (5), rewarming risk management (7) and rewarming complication monitoring (5). Evidence level ranged from grade 1 to 5. Conclusion We summarized the evidence of hypothermia rewarming management in critically ill adult patients from 5 dimensions, which provides theoretical guidance for clinical practice.However, most of the evidence are extracted from foreign studies. It is suggested that when using the evidence collected in this study, researchers should fully evaluate the feasibility, appropriateness, meaningfulness and effectiveness of each piece of evidence and the obstacles and promoting factors of evidence clinical application should be assessed simultaneously, so as to ensure the successful application of the evidence.

Key words: critically ill patient, hypothermia, rewarming, evidence summary