RELATIONSHIP BETWEEN EXPIRED LUNG-VOLUME, PEAK FLOW-RATE AND PEAK VELOCITY TIME DURING A VOLUNTARY COUGH MANEUVER
RELATIONSHIP BETWEEN EXPIRED LUNG-VOLUME, PEAK FLOW-RATE AND PEAK VELOCITY TIME DURING A VOLUNTARY COUGH MANEUVER
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DOI：
10.1093/bja/72.3.298
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发表时间：
1994-03-01
影响因子：
9.8
通讯作者：
AITKENHEAD, AR
中科院分区：
文献类型：
--
作者：
MAHAJAN, RP;SINGH, P;AITKENHEAD, AR
流率测定法是一种通过分析由随意咳嗽产生的气流波形来评估喉功能的新的非侵入性方法。10名健康男性志愿者在从总肺容量到功能性残气量的不同肺容量下进行5次（n = 6）或6次（n = 4）自愿咳嗽动作。在每次操作期间，将气流（升/分（-1））与时间（ms）作图，以记录咳嗽产生的She峰值流量（CPFR）和达到该峰值所需的时间（PVT）。此外，在每次操作期间测量呼气量（CEV）。CPFR与PVT（r = 0.81）、CPFR与CEV（r = 0.78）、PVT与CEV（r = 0.71）均呈高度显著相关（P < 0.001）。我们的结论是，PVT可能与CPFR，这反过来又承担了一个直接的关系，呼气肺容量在咳嗽演习。在解释牙床厚度测量结果时，应考虑不同变量之间的这些关系。
Tussometry is a new non-invasive method of assessing laryngeal function by analysing the airflow waveform produced by a voluntary cough. Ten healthy male volunteers performed five (n = 6) or six (n = 4) voluntary cough manoeuvres at varying lung volumes from total lung capacity to functional residual capacity. During each manoeuvre, airflow (litre min(-1)) was plotted against time (ms) to record She peak flow generated by the cough (CPFR) and the time taken to achieve this (PVT). in addition, expired volume (CEV) was measured during each manoeuvre. Highly significant (P < 0.001) correlations existed between CPFR and PVT (r = 0.81), CPFR and CEV (r = 0.78) and PVT and CEV (r = 0.71). We conclude that PVT may vary with CPFR which in turn bears a direct relationship to expired lung volume during a cough manoeuvre. These relationships among different variables should be considered when interpreting the results of tussometry.