Abstract
To investigate Passive Anterior Rhinomanometry (PAR), several clinical experiments were set up to explore in children aged 3-6 years the nasal resistance in various normal and pathological situations, in order to determine the role of rhinomanometry in clinical situations in young children. It was shown that the nasal cycle in children differs greatly from that in adults, showing a regular undulating pattern of nasal resistance, but without alternating phenomena. There are also quite regular fluctuations with a short period of about 90 s. Physical exercise and changes in body position have also, in children, a definite influence on nasal resistance. PAR in various pathological situations of the nasal cavity gave a wide range of individual results. It was, however, found that children with a nasal septum deviation, with a pronounced nasal edema, and with serous and purulent nasal secretions had a higher nasal resistance than children without nasal pathology. Because of the spontaneous and evoked changes in nasal resistance in children and because of the large standard deviations of nasal resistance values in pathological situations, clinicians should interpret the results of a one-time rhinomanometrical measurement very carefully.
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