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Impulse Oscillometry vs. Body Plethysmography in Assessing Respiratory Resistance in Children
Author(s) -
Tomalak Waldemar,
Radliński Jakub,
Pawlik Jacek,
Latawier Wojciech,
Pogorzelski Andrzej
Publication year - 2006
Publication title -
pediatric pulmonology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.866
H-Index - 106
eISSN - 1099-0496
pISSN - 8755-6863
DOI - 10.1002/ppul.20310
Subject(s) - plethysmograph , medicine , respiratory system , airway resistance , cardiology , resistive touchscreen , electrical engineering , engineering
In 334 children aged 5–18 years, we compared the results of plethysmographic measurements of airway resistance (Raw) with oscillometric (impulse oscillometry; IOS) assessment of respiratory properties of the respiratory system (resistance (R) at 5, 20, and 35 Hz). All three resistances correlated significantly with plethysmographic Raw, and the strongest correlation was seen for R5 (r = 0.64). R5, R20, and R35 were significantly greater than Raw in the whole group. In the group of children with obstruction (FEV 1 %FVC below lower limit of normal), R5 was still greater than Raw, while R20 and R35 were not. The Bland‐Altman analysis comparing plethysmographic measurements with oscillometric R5 revealed a significant difference between Raw and R5 in the whole group, which disappeared in the group of obstructed patients. Oscillometric assessment of resistive properties of the respiratory system of the lung requires less patient cooperation than does plethysmography. As the results of measurements using oscillometric R5 are similar to those obtained by plethysmography, IOS may be useful in diagnosing children with obstructive respiratory diseases. Pediatr Pulmonol. © 2005 Wiley‐Liss, Inc.