In:
Journal of Applied Physiology, American Physiological Society, Vol. 134, No. 1 ( 2023-01-01), p. 142-146
Abstract:
Airway resistance measurements using oscillometry provide a potential alternative to spirometry in assessing airway obstruction and dynamics due to measurements taken during tidal breathing. Oscillometry typically requires participants to form a tight seal around a mouthpiece that can prove challenging for some people. To address this challenge, we conducted a prospective study to evaluate the effect of different interfaces like mouthpiece, mouth mask, and nasal mask on respiratory impedance results from oscillometry in a cohort of healthy adults. Ten healthy adults [7 females; mean age: 38.9 yr (SD ±15.5)] underwent oscillometry using each of the three interfaces. We measured resistance at 5 Hz (Rrs 5 ), frequency dependence of resistance at 5–20 Hz (Rrs 5-20 ), and reactance area (Ax). Rrs 5 was not different when using the mouthpiece compared with the mouth mask [mean 2.98 cmH 2 O/L/s (SD ±0.68) vs. mean 3.2 cmH 2 O/L/s (SD ±0.81); P = 0.92; 95% CI −0.82 to +0.38], respectively. Nasal mask Rrs 5 measurements were significantly higher than mouthpiece measurements (mean 7.31 cmH 2 O/L/s; SD ±2.62; P 〈 0.01; 95%CI −6.91 to −1.75). With Ax 5 , we found a mean of 4.01 cmH 2 O/L (SD ±2.04) with the mouth mask compared with a mean of 4.02 cmH 2 O/L (SD ±1.87; P = 1.0 95% CI −1.86 to +1.87) for the mouthpiece, however, we found a significant difference between the mouthpiece and nasal mask for Ax (mean = 10.71; SD ±7.0 H 2 O/L; P = 0.04, 95% CI −12.96 to −0.43). Our findings show that oscillometry using a mouth mask may be just as effective as using a mouthpiece in assessing airway dynamics and resistance. NEW & NOTEWORTHY This is the first study to compare the use of different interfaces: mouthpiece, mouth mask, and nasal mask, for oscillometry in an adult population. We report that using a mouth mask in oscillometry may provide a valid alternative to a mouthpiece in cohorts who may struggle to form the required tight seal that is typically required in oscillometry or spirometry.
Type of Medium:
Online Resource
ISSN:
8750-7587
,
1522-1601
DOI:
10.1152/japplphysiol.00491.2022
Language:
English
Publisher:
American Physiological Society
Publication Date:
2023
detail.hit.zdb_id:
1404365-8
SSG:
12
SSG:
31
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