Quality improvement interventions to prevent unplanned extubations in pediatric critical care: a systematic review.

BACKGROUND: An unplanned extubation is the uncontrolled and accidental removal of a breathing tube and is an important quality indicator in pediatric critical care. The objective of this review was to comprehensively synthesize literature published on quality improvement (QI) practices implemented to reduce the rate of unplanned extubations in critically ill children. METHODS: We included original, primary research on quality improvement interventions to reduce the rate of unplanned extubations in pediatric critical care. A search was conducted in MEDLINE (Ovid), Embase, and CINAHL from inception through April 29, 2021. Two reviewers independently screened citations in duplicate using pre-determined eligibility criteria. Data from included studies were abstracted using a tool created by the authors, and QI interventions were categorized using the Behavior Change Wheel. Vote counting based on the direct of effect was used to describe the effectiveness of quality improvement interventions. Study quality was assessed using the Quality Improvement Minimum Quality Criteria Set (QI-MQCS). Results were presented as descriptive statistics and narrative syntheses. RESULTS: Thirteen studies were included in the final review. Eleven described primary QI projects; two were sustainability studies that followed up on previously described QI interventions. Under half of the included studies were rated as high-quality. The median number of QI interventions described by each study was 5 [IQR 4-5], with a focus on guidelines, environmental restructuring, education, training, and communication. Ten studies reported decreased unplanned extubation rates after the QI intervention; of these, seven had statistically significant reductions. Both sustainability studies observed increased rates that were not statistically significant. CONCLUSIONS: This review provides a comprehensive synthesis of QI interventions to reduce unplanned extubation. With only half the studies achieving a high-quality rating, there is room for improvement when conducting and reporting research in this area. Findings from this review can be used to support clinical recommendations to prevent unplanned extubations, and support patient safety in pediatric critical care. SYSTEMATIC REVIEW REGISTRATION: This review was registered on PROSPERO (CRD42021252233) prior to data extraction.

Immunization with Epstein-Barr Virus Core Fusion Machinery Envelope Proteins Elicit High Titers of Neutralizing Activities and Protect Humanized Mice from Lethal Dose EBV Challenge.

Epstein-Barr virus (EBV) is the primary cause of infectious mononucleosis and is strongly implicated in the etiology of multiple lymphoid and epithelial cancers. EBV core fusion machinery envelope proteins gH/gL and gB coordinately mediate EBV fusion and entry into its target cells, B lymphocytes and epithelial cells, suggesting these proteins could induce antibodies that prevent EBV infection. We previously reported that the immunization of rabbits with recombinant EBV gH/gL or trimeric gB each induced markedly higher serum EBV-neutralizing titers for B lymphocytes than that of the leading EBV vaccine candidate gp350. In this study, we demonstrated that immunization of rabbits with EBV core fusion machinery proteins induced high titer EBV neutralizing antibodies for both B lymphocytes and epithelial cells, and EBV gH/gL in combination with EBV trimeric gB elicited strong synergistic EBV neutralizing activities. Furthermore, the immune sera from rabbits immunized with EBV gH/gL or trimeric gB demonstrated strong passive immune protection of humanized mice from lethal dose EBV challenge, partially or completely prevented death respectively, and markedly decreased the EBV load in peripheral blood of humanized mice. These data strongly suggest the combination of EBV core fusion machinery envelope proteins gH/gL and trimeric gB is a promising EBV prophylactic vaccine.