• Br J Dis Chest · Jan 1984

    Case Reports

    Assessment of proximal airway obstruction in children by analysis of flow-volume loops.

    • J M Couriel, M Hibbert, and A Olinsky.
    • Br J Dis Chest. 1984 Jan 1; 78 (1): 36-45.

    AbstractThe usefulness of maximal expiratory and inspiratory flow-volume (F-V) loops was assessed in ten children with clinical evidence of tracheal or laryngeal obstruction. Normal values from 514 healthy children are presented. Measurement of maximal flow, and expiratory/inspiratory flow ratios and observation of the characteristic contours of the F-V loops distinguished between proximal and peripheral airways obstruction in all cases. Most children over the age of 7 years could perform the test adequately. F-V loop analysis is a valuable technique in the assessment of the child with proximal airway obstruction. Unlike endoscopic and radiological investigation, it measures the functional rather than the anatomical degree of obstruction, and provides a simple non-invasive way of monitoring the response to treatment.

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