Assessing the impact of an educational intervention on ventilator-associated pneumonia

ABSTRACT Ventilator-associated pneumonia is a condition of the lung parenchyma in artificially ventilated patients. Considered a public health problem, it is preventable through good evidence-based practices. This study aimed to highlight the efficacy of training in ventilator-associated pneumonia with the use of pre- and post-tests as tools to evaluate retention of the content addressed. This is a cross-sectional, exploratory and quantitative study conducted in a public hospital in the Sinos River Valley/RS in December 2019. The sample consisted of healthcare providers and supervised interns who attended training developed with audiovisual resources and rounds of talks, excluding those who failed to complete the questionnaires in the pre- and/or post-test stages composed of five questions about the endotracheal tube, headboard angle, aspiration of secretions and risk factors for and prevention of ventilator-associated pneumonia. Descriptive statistical procedures, paired Student’s t-test and boxplot construction of the participants’ scores were used for data analysis. The study was composed of 45 participants with a mean age of 34.5±8.9 years, mostly women (75.6%) and nursing technicians (60%). We observed that the global average of correct answers in the pre-test questions was 28 (62.2%) and 38 (84.4%) in the post-test, expressing a 35.7% increase in correct answers after training, but this increase was statistically insignificant (p=0.103). Despite the potential benefits of the applied educational intervention, the results obtained were insignificant, contrary to our hypothesis.

摘要 呼吸机相关性肺炎（Ventilator-associated pneumonia）是人工通气患者罹患的肺实质病变，属于公共卫生问题，可通过规范的循证实践予以预防。本研究旨在探讨呼吸机相关性肺炎相关培训的效果，采用前后测试作为工具，评估受试者对所授内容的掌握留存情况。本研究为2019年12月在锡诺斯河谷/南里奥格兰德州的一所公立医院开展的横断面探索性定量研究。研究对象为参与本次以视听资源结合专题讲座形式开展的培训的医疗从业者及带教实习生，排除未完成前后测试问卷的受试者；前后测试问卷共包含5道题目，涉及气管插管、床头角度、分泌物吸引以及呼吸机相关性肺炎的危险因素与预防措施。数据分析采用描述性统计方法、配对t检验及受试者得分箱线图构建。本研究共纳入45名受试者，平均年龄为34.5±8.9岁，其中女性占比75.6%，护理技术员占比60%。结果显示，前测的整体平均正确答题数为28，正确率为62.2%，后测则为38，正确率为84.4%，培训后正确答题率提升35.7%，但该提升无统计学显著性（p=0.103）。尽管本次实施的教育干预存在潜在获益，但所得结果与我们的研究假设相悖。