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）是指人工通气患者发生的肺实质病变，属于公共卫生问题，可通过完善的循证实践进行有效预防。本研究旨在探讨呼吸机相关性肺炎相关培训的效果，采用前测与后测作为评估工具，以衡量参与者对所授培训内容的掌握留存情况。本研究为2019年12月于锡诺斯河谷/RS（巴西南里奥格兰德州）某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培训的医疗保健从业者及带教实习人员，培训采用视听资源与系列专题讲座形式开展，排除未完成前测及/或后测问卷的参与者；问卷共包含5个问题，涉及气管插管、床头角度、分泌物吸引、呼吸机相关性肺炎危险因素及预防措施。数据分析采用描述性统计方法、配对t检验及参与者得分箱线图绘制。本研究共纳入45名参与者，平均年龄为34.5±8.9岁，其中女性占比75.6%，护理技师占比60%。结果显示，前测的总正确作答率为62.2%（共28题正确），后测则为84.4%（共38题正确），培训后正确作答率提升35.7%，但该提升未达到统计学显著性（P=0.103）。尽管本次教育干预具备潜在获益，但所得结果与我们的研究假设相悖，未呈现统计学显著性差异。