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Speech nasality and nasometry in cleft lip and palate
Fabiane Rodrigues Larangeira1, Jeniffer de Cássia Rillo Dutka2, Melina Evangelista Whitaker3
1Master's Degree Program in Sciences, Department of Speech/Language Pathology and Audiology, Faculdade de Odontologia de Bauru, Universidade de São Paulo (USP), Bauru, SP, Brazil.
Brazilian Journal of Otorhinolaryngology
|January 23, 2016
Summary
Live speech assessments and the Test of Hypernasality (THYPER) are most effective for evaluating speech nasality. These methods provide superior results compared to audio recordings or nasometry for assessing hypernasality.
Area of Science:
- Speech-Language Pathology
- Medical Diagnostics
- Craniofacial Anomalies
Background:
- Perceptual evaluation is the gold standard for assessing speech nasality.
- Current perceptual methods are prone to errors due to varied procedures.
- There is a need for improved and reliable speech nasality assessment techniques.
Purpose of the Study:
- To compare the efficacy of four distinct methods for evaluating speech nasality.
- To assess speech nasality using live speech, the Test of Hypernasality (THYPER), audio-recorded speech, and nasometry.
- To determine the most accurate method for identifying hypernasality.
Main Methods:
- A retrospective study involving 331 patients with operated unilateral cleft lip and palate.
- Speech nasality was evaluated using four methods: live perceptual judgment, THYPER, audio-recorded speech judgment, and nasometry.
- Data were collected from medical records, with audio recordings assessed by multiple judges.
Main Results:
- Live perceptual judgment and THYPER yielded the highest rates of absence of hypernasality (79%).
- Audio-recorded speech judgments showed a lower absence rate (66%).
- Nasometry indicated the lowest percentage of absence of hypernasality (57%).
Conclusions:
- Live assessments, including direct speech pathologist judgment and THYPER, demonstrated superior performance.
- These live methods appear more reliable for evaluating speech nasality in patients with cleft lip and palate.
- The study highlights the advantages of real-time perceptual evaluation over recorded or instrumental methods.
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