Chang A B, Newman R G, Phelan P D, Robertson C F
Dept of Thoracic Medicine, University of Melbourne, Royal Children's Hospital, Victoria, Australia.
Eur Respir J. 1997 Jul;10(7):1637-9. doi: 10.1183/09031936.97.10071637.
Cough is commonly used as an outcome measure in clinical studies, although the subjective reporting of cough is unreliable when compared to objective measures. We describe an inexpensive new ambulatory cough meter that is based on a disused Holter monitor. The cough meter consists of a Holter monitor and a cough processor, designed on a computer to select the most appropriate filters. The cough meter was then validated against the overnight tape recorder on 21 occasions in 18 children (aged 6-15 yrs). The agreement between the cough meter and the tape recorder was good (mean difference of -0.3 coughs x h(-1); limits of agreement -2.2 to 1.7 coughs x h(-1)). We conclude that our newly described ambulatory cough meter provides a valid and inexpensive method of objectively monitoring cough for up to 24 h.
咳嗽在临床研究中通常用作一项疗效指标，尽管与客观测量方法相比，咳嗽的主观报告并不可靠。我们描述了一种基于废弃动态心电图监测仪的新型廉价便携式咳嗽计。该咳嗽计由一个动态心电图监测仪和一个咳嗽处理器组成，咳嗽处理器在计算机上设计，用于选择最合适的滤波器。然后，在18名6至15岁儿童中，对该咳嗽计与过夜磁带录音机进行了21次对照验证。咳嗽计与磁带录音机之间的一致性良好（平均差异为-0.3次咳嗽/小时；一致性界限为-2.2至1.7次咳嗽/小时）。我们得出结论，我们新描述的便携式咳嗽计提供了一种有效且廉价的方法，可对咳嗽进行长达24小时的客观监测。
