Tomalak Waldemar, Czajkowska-Malinowska Małgorzata, Radliński Jakub
Pneumonol Alergol Pol. 2014;82(4):330-5. doi: 10.5603/PiAP.2014.0041.
Spirometry, which is a basic diagnostic tool of the respiratory system, may cause problems to patients of advanced age because of required cooperation and specific respiratory manoeuvres. Impulse oscillometry (IOS) may be an interesting alternative for spirometry as the examination is made during quiet breathing and gives information about resistive properties of the respiratory system.
This work presents the results of oscillometric measurements made in 277 patients aged 65-96 years, in whom spirometry was also performed.
Resistances measured with IOS (R5, R5-R20) and the resonant frequency Fn correlated significantly with FEV1 (r = -0.503; -0.570 and -0.673, respectively). A comparison of the results from patients with airway obstruction confirmed in spirometry with those of the non-obstructed group showed highly significant differences in mean values of oscillometric parameters (p < 0.001).
As R5-R20 is regarded as a measure of peripheral airways resistance, IOS may serve as an interesting complementary or alternative method for spirometry in elderly subjects for evaluation of the state of respiratory system.
肺活量测定法是呼吸系统的一种基本诊断工具，由于需要患者配合以及特定的呼吸动作，可能会给老年患者带来问题。脉冲振荡法（IOS）可能是肺活量测定法的一个有趣替代方法，因为该检查是在安静呼吸时进行的，并能提供有关呼吸系统阻力特性的信息。
本文介绍了对277名年龄在65至96岁之间的患者进行振荡测量的结果，这些患者同时也进行了肺活量测定。
用IOS测量的阻力（R5、R5-R20）和共振频率Fn与第一秒用力呼气容积（FEV1）显著相关（r分别为-0.503、-0.570和-0.673）。对肺活量测定中确诊为气道阻塞的患者与未阻塞组患者的结果进行比较，结果显示振荡测量参数的平均值存在高度显著差异（p<0.001）。
由于R5-R20被视为外周气道阻力的指标，IOS可作为一种有趣的补充或替代方法，用于老年受试者的肺活量测定，以评估呼吸系统状况。
