Effect of Cleft Palate Repair and Pharyngeal Flap Surgery on Upper Airway Obstruction During Sleep

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Abstract
The effect of von Langenbeck palatoplasty and pharyngeal flap surgery on upper airway obstruction during sleep was studied by obtaining polysomnographic sleep studies on 10 patients undergoing each procedure at 1 to 2 days prior to surgery, 2 to 3 days postoperatively, and approximately 3 months postoperatively. The effects of von Langenbeck palatoplasty on sleep-related upper airway obstruction were usually minimal and clinically insignificant, whereas severe obstructive sleep apnea was present in all but one of the patients undergoing pharyngeal flap surgery at 2 to 3 days postoperatively. In most patients the upper airway obstruction was resolved at the 3-month postoperative sleep study. These data suggest that palatoplasty carries with it a very slight risk of upper airway obstruction, whereas pharyngeal flap surgery has as a very frequent concomitant the occurrence of severe obstructive sleep apnea in the immediate postoperative period.

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