The Polish version of the Pediatric Voice Handicap Index (pVHI)
2020
Abstract Introduction The modern standard of voice diagnostics in both the adult and pediatric populations is based on perceptual, acoustic and videolaryngoscopic assessment, as well as self-assessment of voice quality. Currently, only two tools for assessing the voice in the pediatric population were translated into Polish: pVHI and its abbreviated version - cVHI (Children Voice Handicap Index). Thanks to the use of pVHI, the therapist and the patient, as well as his family and relatives, become aware of what functional zones are disturbed as a result of voice problems. Aim The aim of the study was to analyze various methods of assessing children's voice, including the pVHI voice disability questionnaire in children with various voice disorders. In addition, the authors wanted to develop a classification of the degree of disability of children's voice expressed by the sum of points obtained in pVHI. Material and method The study included a group of 89 children aged 5-12. Each child underwent a standard otolaryngological and phoniatric examination procedure with hearing assessment and fiberoscopic laryngeal evaluation. The voice of the dysphonic children was assessed with a spectrogram and the GRBAS scale. The children's guardians completed the Pediatric Voice Handicap Index (pVHI). Results Polish children without voice disorders obtained an average of 1.9 points as a total result of the pVHI questionnaire. The results of the questionnaire obtained from children with voice disorders were on average 24.7 (SD 13.9). Total and individual domain scores were significantly higher in children with dysphonia than in asymptomatic children. Children with voice disorders were rated an average of 1.95 (SD 0.6) degree of hoarseness in Yanagihara's scale, and obtained an average overall score of 4.8 on the GRBAS scale (SD 2). A common upward trend in all types of evaluation is evident, along with an increase in the handicap expressed in pVHI score. Statistical analysis showed significant dependence between the overall pVHI score and other voice rating indicators. The result correlated to a moderate degree with the sum of points obtained from GRBAS and the severity of hoarseness assessed subjectively (G) and objectively according to Yanagihara's scale. In addition, weak correlations of the functional part of the questionnaire with the presence of learning problems, and the emotional part with the presence of problems with socialization were noticed. Analyzing the results of the questionnaire depending on the GRBAS results and the Yanagihara scale, a better fit of the exponential trend line than the linear one was observed. The point of inflection of the exponential curve, and thus a significant deterioration in voice assessment indicators, was observed in children who obtained over 32 points, which is 33% of the maximum value that can be obtained from the questionnaire. Conclusions A new voice assessment tool for the pediatric population has been developed that complements the diagnostic facilities of the otolaryngologist, phoniatrician and speech therapist. Adaptation of the Polish version of the Voice Handicap Index (pVHI) allows the introduction of a new diagnostic indicator into medical and speech therapy practice. The pVHI questionnaire result differentiates children with voice and speech disorders from healthy children. The analysis of children's voice using various methods allows the clinician to further characterize the disturbance of voice quality. It is possible to assess the scale of the severity and type of problem, as well as the spheres of life it concerns most. There is a correlation between the severity of voice disorders and the severity of voice disability expressed in the pVHI question.
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