Superiorly based pharyngeal flap for treatment of velopharyngeal insufficiency in patients with 22q11.2 deletion syndrome.

BackgroundThere are no previous blinded studies for comparison of preoperative versus postoperative perceptual speech assessments when using a pharyngeal flap for treating velopharyngeal insufficiency (VPI) in patients diagnosed with 22q11.2 deletion syndrome. The aim of the study was to evaluate th