Dl. Witsell et al., PRELIMINARY DATA ON THE EFFECT OF PHARYNGEAL FLAPS ON THE UPPER AIRWAY IN CHILDREN WITH VELOPHARYNGEAL INADEQUACY, The Laryngoscope, 104(1), 1994, pp. 12-15
Seven patients who received pharyngeal flaps for velopharyngeal incomp
etence (VPI) were studied to assess the effect of the procedure on nas
al airway size. The findings suggest that the pharyngeal flap does not
significantly decrease the upper airway in all patients. The effect o
f the flap did not correlate with the type of cleft, and was most pron
ounced in the inspiratory phase of the breathing cycle. Reasons for th
is variable effect, assumed to be related to an already impaired nasal
airway in most cleft patients, are discussed.