Cleft Palate Cran J
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Cleft Palate Cran J · Mar 2011
Comparative Study Observational StudyPalatoplasty as the technique of choice for prevention of obstructive sleep apnea secondary to surgery for velopharyngeal insufficiency.
The aim of this study is to compare patients treated with pharyngoplasty and those treated with palatoplasty for velopharyngeal insufficiency to establish what surgical procedure poses the highest risk for developing sleep apnea. The hypothesis tested in this study is that the incidence of obstructive sleep apnea syndrome associated with pharyngoplasty is greater than that associated with palatoplasty for velopharyngeal insufficiency. ⋯ When comparing the apnea-hypopnea index (i.e., respiratory disturbance index) of patients treated for velopharyngeal insufficiency with palatoplasty versus pharyngoplasty, we observed an important difference between the groups, with the highest indices in the pharyngoplasty group.
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Cleft Palate Cran J · Mar 2011
Variations in velopharyngeal structures between upright and supine positions using upright magnetic resonance imaging.
No studies have used MRI to compare the dimensional changes of the velopharyngeal musculature between upright and supine positions. The purpose of this study is to provide a comparison between structures of the velopharyngeal mechanism while in the supine and upright positions during rest and sustained speech productions of four female subjects. ⋯ Overall, gravity had a minimal effect on velar thickness, velar length, velar height, levator muscle length, angles of origin, and pharyngeal dimensions. Differences between the two body positions (upright and supine) were not significant during rest or during production of /i/ and /s/, with the exception of velar height during /i/ production.