Prediction of deterioration of velopharyngeal function associated with maxillary advancement using electromyography of levator veli palatini muscle

The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association
Kanji NoharaT Wada

Abstract

The purpose of the present study was to examine the possibility that postoperative velopharyngeal function following maxillary advancement could be predicted using preoperative electromyography of the levator veli palatini. Levator muscle electromyography was recorded preoperatively during speech and blowing. Levator activity was expressed as a percentage relative to the maximum value observed throughout the experiment. Postoperative velopharyngeal function was evaluated by means of perceptual judgment and nasoendoscopy. The subjects were four patients with repaired cleft palates who underwent maxillary advancement, two by osteotomy and two by distraction osteogenesis. None of the subjects presented with preoperative hypernasality, and nasoendoscopy demonstrated complete velopharyngeal closure in all subjects prior to maxillary advancement. Preoperative levator activity for speech of two subjects was similar to that for normal speakers (< 60% of total range), and postoperative nasality and nasoendoscopic findings revealed no detectible changes. For the other two subjects, levator activity for speech exceeded 60% of the total range, similar to that of speakers with velopharyngeal incompetence. These subjects showed increased hyp...Continue Reading

References

Jun 1, 1977·Journal of Maxillofacial Surgery·B N Epker, L M Wolford
May 1, 1979·Journal of Maxillofacial Surgery·S A SchendelB N Epker
Aug 1, 1979·Plastic and Reconstructive Surgery·J G McCarthyM D Schwartz
Mar 1, 1976·Journal of Maxillofacial Surgery·C Schwarz, E Gruner
Jul 1, 1990·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·I WatzkeR Dalston
Sep 1, 1995·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·D P Kuehn, J B Moon
Dec 1, 1994·Journal of Speech and Hearing Research·D P Kuehn, J B Moon
May 20, 1998·The Journal of Craniofacial Surgery·J MaegawaD J David
May 26, 1999·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·T TachimuraT Wada
Oct 18, 2000·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·T TachimuraT Wada
Aug 28, 2001·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·T TachimuraT Wada
Aug 23, 2002·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Takashi TachimuraTakeshi Wada
Jan 12, 2007·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Nattharee ChanchareonsookNabil Samman

❮ Previous
Next ❯

Citations

Feb 7, 2016·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Kelley M DentinoBonnie L Padwa
Jan 8, 2015·The Journal of Craniofacial Surgery·Kamil H NelkeHanna Gerber
Jan 28, 2010·Journal of Dental Research·K NoharaT Sakai
May 23, 2018·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Kohei NakatsugawaTakashi Yamashiro
Jun 20, 2019·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Maria Natália Leite de Medeiros-SantanaRenata Paciello Yamashita

❮ Previous
Next ❯

Related Concepts

Related Feeds

Birth Defects

Birth defects encompass structural and functional alterations that occur during embryonic or fetal development and are present since birth. The cause may be genetic, environmental or unknown and can result in physical and/or mental impairment. Here is the latest research on birth defects.