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Perceptuell bedömning av tal före och efter svalglambåplastik hos patienter med velofarynxinsufficiens
Linköping University, Department of Clinical and Experimental Medicine, Speech and Language Pathology .
Linköping University, Department of Clinical and Experimental Medicine, Speech and Language Pathology .
2008 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesisAlternative title
Perceptual Speech Evaluation before and after Pharyngeal Flap Surgery in Patients with Velopharyngeal Insufficiency (English)
Abstract [en]

Velopharyngeal insufficiency may affect resonance, articulation and thus how speech is perceived by other listeners. Velopharyngeal insufficiency is frequently found in the cleft palate population due to structural abnormalities of the palate. The pharyngeal flap is the most commonly used operation designed to improve velopharyngeal function. The aim of the present study was to compare speech before and after pharyngeal flap surgery by perceptual evaluation regarding nasality, articulation and deviant speech. The study includes preoperative and postoperative speech samples of 28 patients who underwent pharyngeal flap surgery at the University Hospital in Linköping between 2002 and 2007. The speech samples were phonetically transcribed and analysed regarding nasality and articulation by the authors. For comparison of results, naïve listeners and graduate students of speech-language pathology rated speech deviances. Speech was evaluated as less hyper nasal and with less maladaptive patterns of articulation after surgery. Articulation with maladaptive patterns related to velopharyngeal insufficiency, especially weak articulation, decreased more than other misarticulations. Naïve listeners as well as speech language pathology students rated speech as being less deviant postoperatively. Naïve listeners rated speech as being more improved in comparison with speech language pathology students. The results indicate that pharyngeal flap surgery leads to less deviant speech as well as reduced hypernasality and misarticulation, which support other studies. Furthermore, the results indicate that speech pathology training may influence the perception of deviant speech. When assessing the outcome of speech enhancing surgery in future studies, the authors recommend adding the opinion of naïve listeners.

Abstract [sv]

Velofarynxinsufficiens kan påverka talets resonans, artikulation och därmed hur talet uppfattas av omgivningen. Den vanligaste orsaken till velofarynxinsufficiens är någon form av medfödd missbildning i gommen. För att hjälpa patienter med velofarynxinsufficiens erbjuds talförbättrande operationer, där den vanligaste är svalglambåplastik. Syftet med föreliggande studie var att perceptuellt bedöma talet före och efter svalglambåplastik beträffande nasalitet, artikulation och grad av avvikelse samt jämföra två lyssnargruppers skattningar av talets grad av avvikelse. Studien gjordes utifrån preoperativa och postoperativa talinspelningar av 28 patienter som genomgått svalglambåplastik på Universitetssjukhuset i Linköping mellan 2002 och 2007. Talmaterialet transkriberades och analyserades av författarna beträffande nasalitet och artikulation. Patienternas tal bedömdes vara mindre hypernasalt och innehålla färre artikulationsavvikelser postoperativt. Artikulationsavvikelser direkt förknippade med velofarynxfunktion, främst tryckreducerad artikulation, minskade mer än andra artikulationsavvikelser. Lyssnargrupperna utgjordes av logopedstudenter respektive naiva lyssnare. Både logopedstudenter och naiva lyssnare bedömde att talets grad av avvikelse hade minskat efter kirurgi. De naiva lyssnarna upplevde en större förbättring än logopedstudenterna. Resultatet tyder på att svalglambåplastik ger ett mindre avvikande tal såväl som minskning av hypernasalitet och artikulationsavvikelser vilket överensstämmer med tidigare forskning. Föreliggande studie visar även att utbildning i analys av talavvikelser kan påverka upplevelsen av talets grad av avvikelse. Författarna förespråkar därför att utvärdering av talförbättrande kirurgi kompletteras med naiva lyssnares uppfattning i framtida studier.

Place, publisher, year, edition, pages
2008. , 34 p.
National Category
Otorhinolaryngology
Identifiers
URN: urn:nbn:se:liu:diva-15635ISRN: LIU-IKE/SLP-A--08/004--SEOAI: oai:DiVA.org:liu-15635DiVA: diva2:126824
Presentation
, Linköping (Swedish)
Uppsok
Medicine
Supervisors
Examiners
Available from: 2008-11-24 Created: 2008-11-23 Last updated: 2010-12-10Bibliographically approved

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CiteExportLink to record
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