教育反馈对使用呼气正压装置的益处。
Benefit of educational feedback for the use of positive expiratory pressure device.
机构信息
Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium.
Cliniques Universitaires Saint-Luc, Brussels, Belgium.
出版信息
Braz J Phys Ther. 2015 Nov-Dec;19(6):451-6. doi: 10.1590/bjpt-rbf.2014.0111. Epub 2015 Sep 1.
BACKGROUND
Positive expiratory pressure (PEP) is regularly used as a self-administered airway clearance technique.
OBJECTIVE
The aim of this study was to evaluate the need to teach the correct use of the PEP device and to measure the progress of the success rate of the maneuver after training.
METHOD
A PEP system (PariPEP-S Sytem) was used to generate PEP in 30 healthy volunteers. They were instructed by a qualified physical therapist to breathe correctly through the PEP device. Then they were evaluated during a set of ten expirations. Two other evaluations were performed at day 2 and day 8 (before and after feedback). The mean PEP and the success rate were calculated for each set of expirations. The number of maneuvers needed to obtain a correct use was calculated on the first session.
RESULTS
An optimal PEP was reached after 7.5 SD 2.7 attempts by all subjects. Success rates and mean pressures were similar between the different sets of expirations (p=0.720 and p=0.326, respectively). Pressure variability was around 10%. After one week, 30% of subjects generated more than two non-optimal pressures in the set of ten expirations. No difference in success rate was observed depending on the evaluations.
CONCLUSION
This study demonstrates that good initial training on the use of the PEP device and regular follow-up are required for the subject to reach optimal expiratory pressure.
背景
呼气正压通气（PEP）常被用作一种自我管理的气道清除技术。
目的
本研究旨在评估是否需要教授正确使用 PEP 设备，并在训练后测量该手法成功率的进展。
方法
使用 PEP 系统（PariPEP-S 系统）在 30 名健康志愿者中产生 PEP。他们接受了一名合格物理治疗师的正确呼吸指导，通过 PEP 设备呼吸。然后，在十次呼气过程中对他们进行评估。在第 2 天和第 8 天（反馈前后）进行另外两次评估。计算每组呼气的平均 PEP 和成功率。在第一次评估中计算获得正确使用所需的操作次数。
结果
所有受试者在 7.5 次标准偏差 2.7 次尝试后达到最佳 PEP。不同组的呼气成功率和平均压力相似（p=0.720 和 p=0.326，分别）。压力变化约为 10%。一周后，30%的受试者在十次呼气中产生两次以上的非最佳压力。根据评估，成功率没有差异。
结论
本研究表明，受试者需要良好的初始 PEP 设备使用培训和定期随访，才能达到最佳呼气压力。
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