Die Bedeutung der oszillatorischen Atemwiderstandsmessung im Kindesalter

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Abstract
The oscillatory resistance to respiration (Ros) was measured in 218 children and 260 adults using the Siregnost FD5 (Siemens, Erlangen) and compared to whole body plethysmography (Raw) and to spirometry. There was a markedly better correlation between Ros and Raw (r = 0.82; n = 88) in children than in adults (r = 0.53; n = 260). Whereas additional recording of the phase angle in children does not yield any substantial additional information, it is of diagnostic importance in adults. Comparison of Ros to the spirometric values yielded the following sequence of decreasing correlation coefficients (linear regression): FEV1.0 [1 s forced expiratory volume], PEF [peak expiratory flow], .ovrhdot.V75 [maximal expiratory flow at 75.degree. vital capacity], MMEF [maximal mid-expiratory flow], .ovrhdot.V50, .ovrhdot.V25. In adults these relationships can not be described by means of a linear correlation. In pediatric pneumology an alternative use of whole body plethysmography and the oscillatory method appears justified.

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