جستجوی مقالات مرتبط با کلیدواژه "nasalance" در نشریات گروه "پزشکی"

Proper resonance is a major factor for the comprehension of speech in individuals with hearing loss. These people have low speech intelligibility caused by inappropriate resonance. Therefore, nasalance measurement is a principal aspect of the assessment of people with hearing loss. This study aimed at determining nasalance in children with hearing loss. This cross-sectional study was conducted in 63 children with moderate, severe, and profound hearing loss. The participants included 51 girls and 12 boys aging 8-13 years old. They were randomly selected from Tehran, Iran. The degree of hearing impairments was determined. Speech samples were obtained using Sentence Reading Test (14 sentences with oral consonants and 3 sentences with nasal consonants) and the nasalance was measured by Nasal View software. Then, data analysis was performed. The mean nasalance in nasal sentences were found to be significantly higher than those of oral sentences between the groups studied.  The mean values for nasalance in nasal sentences read by children with profound hearing loss were significantly higher than those read by children with severe and moderate hearing loss. In this study, the mean nasalance in children with moderate hearing loss was the lowest in reading sentences with oral consonants and nasal consonants. Also, it was found that hearing loss influenced the nasalance.

  Hypernasality is a frequently occurring resonance disorder in people with cleft palate. Nasometer measures the oral and nasal acoustical energy during the speech that is expressed as nasalance score and is a quantitative assessment. The aim of the present study was to obtain the normative nasalance scores for 7 to 20 year-old people and to investigate the differences between genders and age groups. The present descriptive-analytic study was perfromed in 2016 on 7 to 20 year-old participants in Isfahan City, following cluster sampling method for choosing schools and simple sampling method to choose participants. After completing the informed consent and according to the evaluations, individuals who did not have difficulties related to speech, resonance, voice quality, and hearing entered the study. Mean nasalance scores were obtained from 220 participants (120 participants from 7-14 year-old group (55 boys and 65 girls) and 100 participants from14-20 year-old group (50 boys and 50 girls)) using the Nasometer (model 6450) during the repetition of low pressure syllables and reading Rainbow text. The mean obtained nasalance scores for low pressure syllables and rainbow text were 14/09 ±5/65 and 33/65±5/13 in boys 7-14 years old, 15/30± 5/11 and 33/59±4/04 in girls 7-14 years old, 17/75± 10/17 and 35/44± 94/4 in boys 14-20 years old, and 22/42± 9/8 and 36/64± 5/79 in girls 14-20 years old, respectively. Normative nasalance scores for 7 to 20 year-old Persian speaking people in Isfahan city was obtained that can be used as a reference for the clinical diagnosis, evaluation, and treatment of resonance disorders in patients with cleft palate and velopharyngeal insufficiency along with the perceptual assessments.

Every year, a group of children with velopharyngeal insufficiency (VPI) become candidate for secondary surgery in order to improve their resonance disorder, but the perceptual assessments that are based on clinician’s perceptual and quantitative judgments are not responsible for making decisions for secondary surgery. So, the perceptual assessment should be complemented by using aerodynamic and acoustical techniques. Aerodynamic and acoustical techniques are important, because they have potential to provide quantitative results. Nasometer measures the oral and nasal acoustical energy during the speech that is expressed as nasalance score and is a quantitative assessment. The aim of this study was to obtain the normative nasalance scores for 4- to 6-years-old boys speaking Persian language.
This cross-sectional study was done in 2015 on 4- to 6-years-old Persian children in Isfahan City, Iran. All consented participants were initially screened to identify any overt difficulties relating to hearing, voice quality, resonance or speech and language skills. Mean nasalance scores were obtained from 43 normal speaking boys aged 4 to 6 years during the repetition of Persian version of Simplified Nasometric Assessment Procedures (SNAP) test. The Nasometer (model 6450) was used to obtain nasalance scores.
The mean obtained nasalance scores for SNAP test for oral and nasal sentences were 11.57 ± 3.16 and 48.51 ± 7.03, respectively.
The present study provides normative nasalance scores for Persian-speaking boys that can be used as a reference in the clinical process including making decision for needing secondary surgery. As the gender and age are the factors that can affect the nasalance score, obtaining nasometer norm in other age groups and sex seems to be necessary.

The purpose of this study detecting normative nasalance scores for 7-11- year-old male students in Mashhad during incessant speech. Participants consist of 26 boys aged 7-11 years with normal articulation skills, resonanceand voice and speech structure were randomly selected from different regions of Mashhad and voluntarily had participated in the study. The test was run by NasometerII (model6450) inspeech therapy clinic of Ghaem Hospital in Mashhad. Subjects read the following Persian texts of which their validity and reliability have been determined: 1."Bahareh's Bag" (made from oral consonants) 2.the text combines "four seasons" (with normal frequency of nasal consonants) 3.and nasal sentences (loaded with nasal consonants). Nasalance means in the text "Bahareh's Bag", 12.13±4, in the text "four seasons", 30.68±4.8 and 61.5±5.7 in the nasal sentences were calculated. The results of this study have not found any statistical significance for difference in age. Normal nasalance means are calculated at one accent of Persian language, in 7-11- year-old students. Valid and reliable texts were produced (four seasons and nasal sentences) to evaluate nasalance. Given data and standard sentences can apply in speech pathology clinics for assessment and treatment of voice resonance deficit in (cleft palate, velopharyngeal Insufficiency etc.).

In the process of assessing the nasalance scores in patient’s speech, it is vital to know about normative data in the speech of normal subjects. The main objective in this study was to obtain normative data on nasalance scores in normal Persian-speaking children aged 3.5 to 6.5 years. In this cross-sectional and comparative study, nasalance was measured in the speech of 112 children (55 boys and 57 girls) in Tehran, Iran. After auditory screening and speech assessments, the subjects who get the sufficient criterions entered the study. Speech sample was obtained by imitation and repeating sentences (14 oral and 3 nasal sentences) and mean nasalance score was measured by Nasal view software. A mean nasalance score of 46.25% was obtained for nasal sentences and a mean score of 43.67% for fricative sentences, 43.41% for affricative sentences and 42.21% for stop sentences. There was higher nasalance scores in girls but the difference was not significant (p=0.201); there was a significant difference in nasalance scores between different age groups in stop (p=0.037), fricative (p=0.036) and nasal sentences (p=0.032). Findings of this study prepared good statistical data about nasalance scores in normal Persian-speaking children aged 3.5-6.5 years. The study also revealed that nasalance scores can be different in sentences with same manner of articulation and can be affected by presence or absence of nasal consonants and even age.