Frenkiel S, Desmond K, Coates A L, Beaudry P H, Wise M B
J Otolaryngol. 1980 Feb;9(1):7-11.
The physiological assessment of upper respiratory tract obstruction using inspiratory-expiratory flow-volume curves is a valuable non-invasive procedure in children. The technique employed at the Montreal Children's Hospital with appropriate case material is presented. Although flow-volume curves can reliably diagnose and localize a large airway obstruction, these lesions are readily monitored by spirometric testing.