Abstract
Information obtained from serial inspiratory-expiratory (I/E) flow volume (FV) curves on four children with signs and symptoms or UAO was compared to that obtained by physical examination, bronchoscopy, and airway fluoroscopy in an attempt to evaluate the usefulness of FV curves in young children. FV patterns associated with lesions of the upper airway have been described as fixed (F) UAO, variable intrathoracic (VI) UAO, and variable extrathoracic (VE) UAO.
In three of the four cases (Cases 1,2,3) the FV pattern suggested a lesion of the upper airway confirmed by more conventional techniques. In Case 1, fluoroscopy alone confirmed the diagnosis suggested by the FV pattern. I/E FV patterns when combined with airway fluoroscopy, may characterize anatomic lesions of the upper airway frequently missed by less dynamic techniques.
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Dodd, P., Beckerman, R., Hopkins, R. et al. 1645 NONINVASIVE EVALUATION OF UPPER AIRWAY OBSTRUCTION (UAO) IN CHILDREN. Pediatr Res 15 (Suppl 4), 717 (1981). https://doi.org/10.1203/00006450-198104001-01662
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DOI: https://doi.org/10.1203/00006450-198104001-01662
