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Reference values for respiratory system impedance using impulse oscillometry in school-aged children in Korea  

Wee, Young Sun (Department of Pediatrics, College of Medicine, Pochon CHA University)
Kim, Hyoung Yun (Department of Pediatrics, College of Medicine, Pochon CHA University)
Jung, Da Wun (Department of Pediatrics, College of Medicine, Pochon CHA University)
Park, Hye Won (Department of Pediatrics, College of Medicine, Pochon CHA University)
Shin, Yoon Ho (Department of Pediatrics, College of Medicine, Pochon CHA University)
Han, Man Yong (Department of Pediatrics, College of Medicine, Pochon CHA University)
Publication Information
Clinical and Experimental Pediatrics / v.50, no.9, 2007 , pp. 862-867 More about this Journal
Abstract
Purpose : The impulse oscillometry (IOS) is applicable to young children because it requires minimal cooperation and a non-invasive method to measure the mechanics of respiratory system. This study aimed to develop the reference values in school-aged children in Korea, using IOS which is a modification of forced oscillation technique (FOT). Methods : Measurements were performed in 92 previously untrained healthy children, aged 7 to 12 years old, using IOS. We analyzed the relationships between the data about their age, height, weight, body surface area (BSA), body mass index (BMI) and the result of IOS using the linear regression test. Results : The success rate of IOS was 92.4%. Stepwise multiple regression of resistance of respiratory system (Rrs) and reactance of respiratory system (Xrs) in natural form for age, height, weight, BSA, BMI showed that height was the most significant predictor and altogether of 5 variables explained the Rrs and Xrs most. Our regression equations at multiple frequencys were comparable to published reference values, especially about the Rrs obtained at 5 Hz. Conclusion : IOS is a feasible method to measure the respiratory resistance in untrained children. We got the reference values using IOS and it seems to be useful to diagnose a variety of respiratory diseases.
Keywords
Impulse oscillometry; Lung function test; Reference values; Child; Airway resistance;
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Times Cited By KSCI : 3  (Citation Analysis)
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