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OBJECTIVE: This study aimed to develop and validate a prediction model for premature circuit clotting of continuous renal replacement therapy (CRRT) in critically ill patients. DESIGN: A retrospective cohort study was conducted on ICU patients undergoing CRRT. The Medical Information Mart for Intensive Care-III Clinical Database CareVue subset and Medical Information Mart for Intensive Care-IV were utilized for model development, while the eICU Collaborative Research Database was employed for external validation. Predictive factors were selected through Least Absolute Shrinkage and Selection Operator Regression and univariate logistic regression. A prediction model was then developed using binary logistic regression. Internal and external validations assessed the model's discrimination, calibration, and clinical net benefit. RESULTS: This study encompassed 2531 patients overall, with a premature circuit clotting rate of 31.88 %. The prediction model comprises five variables: body temperature, anticoagulation, mean arterial pressure, maximum transmembrane pressure change within two hours, and vasopressor. The model demonstrated robust predictive performance, achieving an area under the receiver operating characteristic curve of 0.897 (95 % CI: 0.879-0.915) in the training set and 0.877 (95 % CI: 0.852-0.902) in the external validation set. Internal validation yielded a Brier score of 0.087, while external validation showed a Brier score of 0.120. Calibration curves indicated good model calibration for both validations. The decision curve analysis indicates that the model yields a clinical net benefit across a wide range of decision thresholds. CONCLUSION: The model demonstrates robust discrimination, calibration, and clinical net benefit, with readily available variables indicating substantial potential for valuable clinical applications. IMPLICATIONS FOR CLINICAL PRACTICE: Healthcare providers in the ICU can leverage the model to evaluate the risk of premature circuit clotting in critically ill patients undergoing continuous renal replacement therapy, facilitating timely intervention to mitigate its incidence.
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BACKGROUND: Vicarious trauma can significantly affect the physical and mental health of nurses, as well as their ability to provide quality of care. However, the concept of vicarious trauma has received limited attention and remains controversial in the nursing context. OBJECTIVE: The purpose of this study was to clarify and define the concept of vicarious trauma as it pertains to the nursing context. METHODS: The Schwartz and Kim's three-stage hybrid concept analysis method was used to define the concept. In the theoretical phase, PubMed, CINAHL, OVID, Medline, Embase, Web of Science, Scopus, ProQuest, PsycINFO, CNKI database, VIP database and Wanfang database were used using keywords "nurs*"and "vicarious trauma*", resulting in a total of 25 papers. In the fieldwork phase, we conducted participatory observations in three hospitals and semi-structured in-depth interviews with 18 clinical nurses from seven cities. In the analysis phase, the results of the previous two phases were integrated to develop a comprehensive concept of vicarious trauma in nursing. RESULTS: Based on the results of the theoretical and field phases, we propose the concept of vicarious trauma in nursing as follows: vicarious trauma is a psychological trauma impacting nurses' cognitive schema which they may experience in clinical settings or on social media, resulting from deeply empathize with the physical or emotional trauma of patients, family, or colleagues, such as patients' physical injuries or death, family's grieving feelings and colleagues' received threats and attacks. Positively, vicarious trauma can transform into vicarious post-trauma growth through repositioning and connection, nourishing nurses and promoting their personal and professional development. CONCLUSION: The concept of vicarious trauma in nursing is multidimensional and holistic. This study clarifies the concept of vicarious trauma in nursing using the hybrid concept analysis, providing a framework for future research and practice on vicarious trauma in the nursing field. PATIENT OR PUBLIC CONTRIBUTION: Nurses contributed to the conduct of the study by participating in the data collection via interviews.