Development, Implementation, and Evaluation of a Clinical Practice Guideline for Care of Preterm Infants Receiving Non-Invasive Ventilation: A Before and After Study

ABSTRACT

Background: Nowadays, noninvasive ventilation is the mainstay of the ventilation strategy in the neonatal intensive care units (NICUs) and most of infants, especially preterm infants, having respiratory problems, are provided noninvasive ventilation (NIV) upon their demands. Nevertheless, complication of NIV device-related pressure injury was common, the incidence of nasal injury ranged from 20% to 60%. Limited studies were found evaluating the nursing care of preterm infants receiving NIV. Aims: This study aimed to develop an evidence-based clinical practice guideline for preterm infants receiving NIV, implement the guideline in a NICU of a regional hospital, and evaluate infant outcomes including comfort, incidence of NIV device-related pressure injury. Besides, improvement on nurse's knowledge and practice for caring infants under NIV were assessed. Study Design and Methods: The Iowa Model-Revised was adopted as the theoretical framework to guide the study process. A multidisciplinary workgroup consists of eight stakeholders in NICU was formed for the process and acted as the champions for the new practice. A before and after study design was adopted and included the preimplementation and post-implementation phases. An integrative review was conducted to identify relevant studies from eight electronic databases before the study. All eligible studies were appraised using the Johns Hopkins University's evidence appraisal tool. Neonatal Pain, Agitation and Sedation Scale (N-PASS) for pain assessment and two self-developed NIV care bundle knowledge test and audit tool were used for the study. Results: Due to the COVID-19 pandemic in 2020, the study was extended for a month and ended in January 2021. A total of 74 infants in Pre-implementation phase (before group) and 67 infants in Post-implementation phase (after group) were recruited. Logistic regression model was used to compare the incidence of pressure injury between groups after adjusted for all substantial covariates in the study. Infants in after group had an 84% decreased odds of acquiring pressure injury (adjusted OR=0.149, 95% CI 0.045-0.495, p=0.002). Infant's comfort level whilst receiving NIV was not determined in the study as the after group having a significantly lesser mean time (p<0.001) in calm state but lower N-PASS score. Regarding nurse participants, 71 nurses received the training programme on NIV care bundle, and overall nurses' knowledge level improved immediately (adjusted p<0.001) and at 12 weeks after the programme. Three audits were conducted to evaluate nurses' practice, nurses' compliance rate to the care bundle significantly improved at 12 (p<0.001) and 24 weeks (p<0.001) in comparison with baseline compliance rate in the pre-implementation phase. However, nurses' knowledge retention at 12-week and compliance rate at 24-week after the training programme declined. Conclusion: The evidence-based clinical practice guideline aims to promote comfort and prevent injury in infants receiving NIV, and outcomes of the infants depend on vigilant nursing care and compliance to this clinical practice guideline. Declining of nurse's knowledge level and practice compliance found in the study indicates the needs of continuous education and audit on the practice to sustain the service quality and patient's safety.