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Validity and Reliability Study of Bahasa Malaysia Version of Voice Handicap Index-10

Ong FM, Husna Nik Hassan NF, Azman M, Sani A, Mat Baki M

J Voice, 2019 Jul;33(4):581.e17-581.e23.
PMID: 29793874 DOI: 10.1016/j.jvoice.2018.01.015

OBJECTIVES: This study aimed to determine the validity and reliability of Bahasa Malaysia version of Voice Handicap Index-10 (mVHI-10).
MATERIALS AND METHODS: This cross-sectional study was carried out in the Otorhinolaryngology, Head and Neck Surgery Department of Universiti Kebangsaan Malaysia Medical Centre (UKMMC) from June 2015 to May 2016. The mVHI-10 was produced following a rigorous forward and backward translation. One hundred participants, including 50 healthy volunteers (17 male, 33 female) and 50 patients with voice disorders (26 male, 24 female), were recruited to complete the mVHI-10 before flexible laryngoscopic examinations and acoustic analysis. The mVHI-10 was repeated in 2 weeks via telephone interview or clinic visit. Its reliability and validity were assessed using interclass correlation.
RESULTS: The test-retest reliability for total mVHI-10 and each item score was high, with the Cronbach alpha of >0.90. The total mVHI-10 score and domain scores were significantly higher (P

Matched MeSH terms: Voice Quality*
Maximum vocal intensity as a primary outcome measure in unilateral vocal fold paralysis patients

Johari SF, Azman M, Mohamed AS, Baki MM

J Laryngol Otol, 2020 Dec;134(12):1085-1093.
PMID: 33308327 DOI: 10.1017/S0022215120002558

OBJECTIVE: To evaluate voice intensity as the primary outcome measurement when treating unilateral vocal fold paralysis patients.
METHODS: This prospective observational study comprised 34 newly diagnosed unilateral vocal fold paralysis patients undergoing surgical interventions: injection laryngoplasty or medialisation thyroplasty. Voice assessments, including maximum vocal intensity and other acoustic parameters, were performed at baseline and at one and three months post-intervention. Maximum vocal intensity was also repeated within two weeks before any surgical interventions were performed. The results were compared between different time points and between the two intervention groups.
RESULTS: Maximum vocal intensity showed high internal consistency. Statistically significant improvements were seen in maximum vocal intensity, Voice Handicap Index-10 and other acoustic analyses at one and three months post-intervention. A significant moderate negative correlation was demonstrated between maximum vocal intensity and Voice Handicap Index-10, shimmer and jitter. There were no significant differences in voice outcomes between injection laryngoplasty and medialisation thyroplasty patients at any time point.
CONCLUSION: Maximum vocal intensity can be applied as a treatment outcome measure in unilateral vocal fold paralysis patients; it can demonstrate the effectiveness of treatment and moderately correlates with self-reported outcome measures.

Matched MeSH terms: Voice Quality/physiology*
Emotional speech acoustic model for Malay: iterative versus isolated unit training

Mustafa MB, Ainon RN

J Acoust Soc Am, 2013 Oct;134(4):3057-66.
PMID: 24116440 DOI: 10.1121/1.4818741

The ability of speech synthesis system to synthesize emotional speech enhances the user's experience when using this kind of system and its related applications. However, the development of an emotional speech synthesis system is a daunting task in view of the complexity of human emotional speech. The more recent state-of-the-art speech synthesis systems, such as the one based on hidden Markov models, can synthesize emotional speech with acceptable naturalness with the use of a good emotional speech acoustic model. However, building an emotional speech acoustic model requires adequate resources including segment-phonetic labels of emotional speech, which is a problem for many under-resourced languages, including Malay. This research shows how it is possible to build an emotional speech acoustic model for Malay with minimal resources. To achieve this objective, two forms of initialization methods were considered: iterative training using the deterministic annealing expectation maximization algorithm and the isolated unit training. The seed model for the automatic segmentation is a neutral speech acoustic model, which was transformed to target emotion using two transformation techniques: model adaptation and context-dependent boundary refinement. Two forms of evaluation have been performed: an objective evaluation measuring the prosody error and a listening evaluation to measure the naturalness of the synthesized emotional speech.

Matched MeSH terms: Voice Quality*
Assessing bilingual Chinese-English young children in Malaysia using language sample measures

Ooi CC, Wong AM

Int J Speech Lang Pathol, 2012 Dec;14(6):499-508.
PMID: 23039126 DOI: 10.3109/17549507.2012.712159

One reason why specific language impairment (SLI) is grossly under-identified in Malaysia is the absence of locally- developed norm-referenced language assessment tools for its multilingual and multicultural population. Spontaneous language samples provide quantitative information for language assessment, and useful descriptive information on child language development in complex language and cultural environments. This research consisted of two studies and investigated the use of measures obtained from English conversational samples among bilingual Chinese-English Malaysian preschoolers. The research found that the language sample measures were sensitive to developmental changes in this population and could identify SLI. The first study examined the relationship between age and mean length of utterance (MLU(w)), lexical diversity (D), and the index of productive syntax (IPSyn) among 52 typically-developing (TD) children aged between 3;4-6;9. Analyses showed a significant linear relationship between age and D (r = .450), the IPsyn (r = .441), and MLU(w) (r = .318). The second study compared the same measures obtained from 10 children with SLI, aged between 3;8-5;11, and their age-matched controls. The children with SLI had significantly shorter MLU(w) and lower IPSyn scores than the TD children. These findings suggest that utterance length and syntax production can be potential clinical markers of SLI in Chinese-English Malaysian children.

Matched MeSH terms: Voice Quality*
Fulltext Gore-tex medialisation thyroplasty for unilateral vocal cord palsy: a tertiary centre 7 years experience

Dayangku, N.P.S., Marina, M.B., Mawaddah, A., Sharifa Ezat, W.P., Abdullah, S.

International Medical Journal Malaysia, 2016;15(2):13-17.
MyJurnal

Background: The resultant dysphonia and aspiration in unilateral vocal cord palsy can be overcome with
medialisation thyroplasty. With this background, we aim to determine the aetiology of the unilateral vocal
cord palsy and effectiveness of the phonosurgical procedure with Gore-Tex as a sole treatment. Methods:
Within a seven year period, 37 Gore-Tex medialisation thyroplasty were performed for unilateral vocal cord
palsy at our institution and medical records were retrospectively reviewed. Results: There were 18
males and 19 females with mean age of 48.7 years (range 19–81 years). The predominant aetiology was
thyroidectomy (43.2%) with benign thyroid disease predominates (n=13) over thyroid malignancy (n=3). Voice
outcome was evaluated subjectively using visual analogue scoring system, results indicating that Gore-Tex
medialisation thyroplasty was effective in addressing dysphonia in 62.5% (n=15) patients. However it alone
cannot address aspiration seen in those with high vagal nerve lesion. Airway compromise occurred in two
cases postoperatively (5.4%) presenting as acute stridor. Conclusion: In unilateral vocal cord palsy, Gore-Tex
medialisation thyroplasty can effectively improve the resultant dysphonia and often accompanying aspiration
which would otherwise be disabling for the patients.

Matched MeSH terms: Voice
Immediate selective laryngeal reinnervation in vagal paraganglioma patients

Mat Baki M, Clarke P, Birchall MA

J Laryngol Otol, 2018 Sep;132(9):846-851.
PMID: 30180919 DOI: 10.1017/S0022215118000476

OBJECTIVE: This prospective case series aimed to present the outcomes of immediate selective laryngeal reinnervation.
METHODS: Two middle-aged women with vagal paraganglioma undergoing an excision operation underwent immediate selective laryngeal reinnervation using the phrenic nerve and ansa cervicalis as the donor nerve. Multidimensional outcome measures were employed pre-operatively, and at 1, 6 and 12 months post-operatively.
RESULTS: The voice handicap index-10 score improved from 23 (patient 1) and 18 (patient 2) at 1 month post-operation, to 5 (patient 1) and 1 (patient 2) at 12 months. The Eating Assessment Tool 10 score improved from 20 (patient 1) and 24 (patient 2) at 1 month post-operation, to 3 (patient 1) and 1 (patient 2) at 12 months. There was slight vocal fold abduction observed in patient one and no obvious abduction in patient two.
CONCLUSION: Selective reinnervation is safe to perform following vagal paraganglioma excision conducted on the same side. Voice and swallowing improvements were demonstrated, but no significant vocal fold abduction was achieved.

Matched MeSH terms: Voice/physiology