Objective To summarize the evidence of PiCCO monitoring and provide evidence for improving the accuracy of clinical PiCCO measurement and standardization of operation. Methods We searched UpToDate,UK National Institute for Health and Care Excellence,American Society of Critical Care Medicine,American Association of Critical Care Nurses,British Association of Critical Care Nurses,PubMed,Embase,Wanfang database,China Knowledge Network and so on for studies related to PiCCO technical operations,including evidence summaries,clinical decisions,recommended practices,technical reports,clinical practical guidelines,systematic reviews,randomized controlled trials,quasi-experimental studies,diagnostic studies,and observational studies. The retrieval time limit was from January 1,1997,to April 30,2022. After methodological quality evaluation by two researchers,the evidence was extracted and summarized according to the theme. Results A total of 18 articles were included,including two expert consensus papers,one randomized controlled trial,nine quasi-randomized controlled trials,four cohort studies,and two diagnostic trials. 23 best evidences were obtained,including five topics,namely PiCCO pipeline management,indicator injection,calibration timing,parameter monitoring under specific conditions and personnel training. Conclusion It is necessary to strengthen the training of medical staff on PiCCO monitoring operation technology,follow the evidence-based nursing standards,select practical evidence according to the actual situation,improve the accuracy of PiCCO measurement and the standardization of operation,and promote the transformation of evidence-based knowledge to practice.
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