Deglutition in Patients With Hypernasality Associated With Unilateral Cleft Lip and Palate Evaluated With High-Resolution Manometry.
Johanna KalluskyRüdiger ZimmererFrank TavassolNils-Claudius GellrichMartin PtokMichael JungheimPublished in: The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association (2019)
In patients with UCLP, velopharyngeal region alterations are caused by impaired muscle force and function. The reduced TB contraction time may be a compensation mechanism allowing bolus transportation without nasal regurgitation. However, deglutition is not completely altered since UES function remains normal. Future studies will need to reveal at which point a decrease in velopharyngeal closing pressure will result in velopharyngeal insufficiency.