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

  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.