Publications by authors named "Majid Soltani"

21 Publications

  • Page 1 of 1

Factor Analysis of the Persian Version of the Voice Disability Coping Questionnaire.

J Voice 2020 Nov 16;34(6):965.e1-965.e11. Epub 2019 Jul 16.

Musculoskeletal Rehabilitation Research Center, Department of Speech Therapy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Electronic address:

Introduction: Voice disorders can affect the quality of life and coping mechanisms and also coping mechanisms can affect the way in which patients deal with their voice problems. People with voice disorders need to use coping strategies to deal with the problems caused by their voice disorder. The purpose of this study was to examine the psychometric properties and cultural adaptation of the Voice Disability Coping Questionnaire in the Iranian population.

Methods: The translation and cross-cultural adaptation procedures were performed according to the basic rules and instructions set by the International Quality of Life Assessment Project. Two hundred and forty-eight adults (218 patients with voice disorder and 30 healthy controls) were participated in the study. Face and content validity, clinical validity, and construct validity of the questionnaire were investigated by modern psychometric methods.

Results: Quantitative methods were used to measure content validity and all items were detected applicable. This means that the final version was clear and easy to answer. Clinical validity shows that the Persian version of VDCQ can distinguish between patients and healthy controls (P < 0.001). The construct validity of the VDCQ was tested in a cross-sectional study. The questionnaire was analyzed by exploratory and confirmatory factor analyses. Investigation of initial communality and after extraction of factors by Varimax rotation method showed that the share of items for all items in the questionnaire except item 12, is higher than 0.5. Therefore, item 12 should be removed from the questionnaire (Table 3). Based on the confirmatory factor analysis model, items 2 and 10, whose factor load were less than 0.4, were excluded from the questionnaire (Fig. 1). For reliability the Cronbach's alpha coefficient and ICC were obtained as 0.82 and 0.99, respectively. The results of studying the role of items in the reliability of the VDCQ showed that all items increase internal consistency.

Conclusion: Based on modern statistical analysis conducted in this study, the original 15 item questionnaire was reduced to 12 item. The 12 item questionnaire is a valid and reliable tool for quantifying coping strategies in people with voice disorder.
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http://dx.doi.org/10.1016/j.jvoice.2019.06.001DOI Listing
November 2020

Comparison of verbal fluency in monolingual and bilingual elderly in Iran.

Appl Neuropsychol Adult 2021 Jan-Feb;28(1):80-87. Epub 2019 Apr 30.

Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Verbal fluency is one of the first and most important cognitive functions that deteriorate during the aging process. Verbal fluency is defined as the skill and speed of finding words and finding semantic and phonetic connections between words. One of the most important factors in verbal fluency is bilingualism. Therefore, the current study aimed to investigate the effect of bilingualism on the verbal fluency of the elderly in Iran. A total of 12 normal elderly bilingual (Arabic-Persian) speakers and 12 normal elderly monolingual (Persian) speakers participated in this comparative-analytical study. To assess verbal fluency, two semantic and phonetic fluency tasks were used. Data were analyzed using the Wilcoxon-Mann-Whitney tests. The results obtained from the comparison of phonetic fluency and semantic fluency of native languages of the two groups showed a better performance of monolingual participants in semantic fluency and phonetic fluency tasks in Persian language compared to the Arabic bilingual elderly. No difference was observed in verbal fluency of Persian monolinguals and bilinguals. However, in bilingual elderly participants, faster retrieval was observed in Persian language than in Arabic. This can be considered in assessment and treatment measures for Arabic-Persian bilinguals.
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http://dx.doi.org/10.1080/23279095.2019.1594234DOI Listing
April 2019

The Efficacy of Phonological Processing Treatment on Stuttering Severity in Persian Pre-School Children.

Iran J Child Neurol 2019 ;13(2):89-102

Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Objectives: Correct phonological encoding is crucial to fluent speech production. Phonological working memory and phonological awareness are important phonological processes that affect phonological encoding. The purpose of this study was to investigate the effect of phonological processing on stuttering severity of Persian pre-school children.

Materials & Methods: Six children were targeted in this study in Ahvaz City, southern Iran in 2018, with Quasi-experimental design (Before and after clinical trial). These children participated in a treatment protocol, scheduled in 13-sessions. The treatment protocol of the phonological processing included nonword repetition in the phonological working memory and phonological awareness therapy. Overall, 30 nonwords were taken to examine the phonological working memory. The Persian test of language development was taken to examine phonological awareness. Stuttering severity measurements were performed with pre- and post-treatment. The severity rating was instructed to the parents based on Guitar protocol. They were asked to keep score every day until the end of the treatment sessions, and they reported the score to the therapist.

Results: The stuttering severity score in pre and post-treatment was significant (=0.027), and in the follow-up, phase was not significant (=0.236); stuttering severity was reduced in children who stutter. Moreover, the severity rating score reported by parents during treatment was significant (= 0.0001). This showed a reduction in stuttering severity.

Conclusion: The poor performance of phonological awareness and phonological working memory in phonological processing affect stuttering severity. Treatment of sub-systems of phonological processing can have an important role in reducing stuttering severity and increasing speech fluency.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6451850PMC
January 2019

Reliability, validity, and normative investigation of Persian version of a High-Level Language Test (BESS).

Appl Neuropsychol Adult 2020 Nov-Dec;27(6):540-548. Epub 2019 Apr 5.

Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Our study aimed at reliability, validity, and normative investigation of the Persian version of the High-Level Language Test (BESS). This study was conducted on 60 multiple sclerosis (MS) patients as well as 60 healthy individuals. After translating the BESS into Persian, its content validity was determined based on 10 experts working in the same field. The reliability of the test was determined using techniques such as the test-retest method, Cronbach's alpha, and clinical validity. The content validity ratio (CVR) was higher than 0.62 for every subtest, and the content validity index (CVI) was between 0.1 and 0.8 for all subtests. Cronbach's alpha coefficient was between 0.70 and 0.93, and intraclass correlation coefficient (ICC) was between 0.80 and 0.96. Clinical validity results showed a significant difference between means of patients' scores and healthy subjects scores ( ≤ 0.005). The Persian version of BESS benefits from high reliability and validity values. Speech therapists can use the test to examine high-level language disorders in MS patients.
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http://dx.doi.org/10.1080/23279095.2019.1575221DOI Listing
April 2019

The Relationship Between Vocal Fatigue Index and Voice Handicap Index in University Professors With and Without Voice Complaint.

J Voice 2020 Sep 13;34(5):809.e1-809.e5. Epub 2019 Feb 13.

Musculoskeletal Rehabilitation Research Center, Department of Speech Therapy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Electronic address:

Introduction: University professors, just like teachers, are considered as professional voice users, who are subject to voice disorders and complaints due to their field of work. The present study aims to investigate the relationship between vocal fatigue index and voice handicap index in university professors with and without voice complaint.

Methods: This is a cross-sectional descriptive-analytic study that was conducted on 84 university professors with an average age of 38.27 ± 9.95. University professors were divided into two groups with and without voice complaints based on the opinion of the professors about the existence or absence of voice complaint. Data obtained from this study was analyzed using SPSS 22 software at a significant level of less than 0.05.

Results: There was a significant correlation between vocal fatigue index and voice handicap index in university professors (P <0.05). In the university professors without voice complaints, only the third factor of the vocal fatigue index was not significant (P > 0.05). However, in this group, there was a significant correlation between the first and the second factor of vocal fatigue index and voice handicap index (P < 0.05).

Conclusion: The results of this study indicate the effect of vocal fatigue on the quality of life of university professors. University professors, like teachers, are exposed to voice disorders and, thus, complaints which leave impacts on their career and should be addressed as a group of professional voice users to prevent voice disorder among them.
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http://dx.doi.org/10.1016/j.jvoice.2019.01.010DOI Listing
September 2020

Dysphonia Characteristics and Vowel Impairment in Relation to Neurological Status in Patients with Multiple Sclerosis.

J Voice 2020 May 19;34(3):364-370. Epub 2018 Oct 19.

Air Pollution and Respiratory Disease Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Purpose: In this study, we attempted to assess the phonation and articulation subsystem changes in patients with multiple sclerosis compared to healthy individuals using Dysphonia Severity Index and Formant Centralization Ratio with the aim of evaluating the correlation between these two indexes with neurological status.

Materials And Methods: A sample of 47 patients with multiple sclerosis and 20 healthy speakers were evaluated. Patients' disease duration and disability were monitored by a neurologist. Dysphonia Severity Index and Formant Centralization Ratio scores were computed for each individual. Acoustic analysis was performed by Praat software; the statistical analysis was run using SPSS 21. To compare multiple sclerosis patients with the control group, Mann-Whitney U test was used for non-normal data and independent-samples t test for normal data. Also a logistic regression was used to compare the data. Correlation between acoustic characteristics and neurological status was verified using Spearman correlation coefficient and linear regression was performed to evaluate the simultaneous effects of neurological data.

Results: Statistical analysis revealed that a significant difference existed between multiple sclerosis and healthy participants. Formant Centralization Ratio had a significant correlation with disease severity.

Conclusion: Multiple sclerosis patients would be differentiated from healthy individuals by their phonation and articulatory features. Scores of these two indexes can be considered as appropriate criteria for onset of the speech problems in multiple sclerosis. Also, articulation subsystem changes might be useful signs for the progression of the disease.
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http://dx.doi.org/10.1016/j.jvoice.2018.09.018DOI Listing
May 2020

Cross-Cultural Adaptation and Validation of the Vocal Fatigue Index into Persian.

J Voice 2019 Nov 30;33(6):947.e35-947.e41. Epub 2018 Aug 30.

Department of Audiology and Speech-Language Pathology, East Tennessee State University, Johnson City, Tennessee.

Introduction: The aim of the present study was the cross-cultural adaptation and validation of the Vocal Fatigue Index (VFI) in Persian.

Methods: The English version of the VFI was translated to Persian using the guidelines of International Quality of Life Assessment. Eighty participants with voice disorders and 50 healthy controls without any voice disorders completed the Persian version of the VFI. The 80 participants with voice disorders completed the VFI a second time a week from the initial completion to evaluate test-retest reliability.

Results: The VFI measure demonstrated a strong internal consistency. Cronbach alpha coefficient was 0.95 for tiredness and avoidance of voice use, 0.86 for physical discomfort and 0.83 for improvement or lack thereof of symptoms with voice rest. VFI also showed a high test-retest reliability (r = 0.75-0.89).

Conclusions: The Persian version of the VFI is considered to be a valid and reliable questionnaire for identifying individuals with probable vocal fatigue. The VFI can be utilized in clinics across Iran in the assessment and treatment of individuals with vocal fatigue.
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http://dx.doi.org/10.1016/j.jvoice.2018.07.024DOI Listing
November 2019

Gensini scores and well-being states among patients with coronary artery disease: A comparison study.

ARYA Atheroscler 2017 Sep;13(5):205-210

Professor, Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran.

Background: World Health Organization (WHO) considered Mental Health Continuum (MHC) as a good instrument for well-being studies. Moreover, gensini score (GS) is an intensity index for coronary artery disease (CAD). The aim of our study was to compare GSs among patients who had coronary artery disease with different well-being states.

Methods: This was a cross-sectional study conducted in Tehran Heart Center, Iran, in 2013. The study population consisted of 50 non-depressed patients who were candidates for coronary artery bypass graft (CABG). All of the participants were interviewed according to the Iranian version of Mental Health Continuum (IV-MHC) and were allocated to flourishing, maternal mental health (MMH) and languishing states based on the related classification criteria. GS was calculated for each participant. Data were analyzed by SPSS.

Results: Forty one (82%) patients were in flourishing, 9 (18%) in MMH and nobody was in languishing states. The mean (standard deviation) of GS was 90.43 (44.424) and 89.67 (33.378) for flourishing and MMH ones, respectively (P = 0.962). There was no statistically significant correlation between GSs and well-being states (all Ps > 0.050).

Conclusion: Considering IV-MHC classification, all of our patients were only allocated to flourishing and MMH states. There was no relationship between intensity of CAD and the states (P > 0.050). We recommend further research with larger sample sizes for better evaluation of the Iranian version of the instrument.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5774792PMC
September 2017

Diagnostic evaluation of dysphagia in multiple sclerosis patients using a Persian version of DYMUS questionnaire.

Mult Scler Relat Disord 2017 Oct 1;17:240-243. Epub 2017 Sep 1.

Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Background: Multiple sclerosis is a chronic neurological disease that may cause swallowing disorders. Dysphagia is a common problem, which patients with different levels of disability may encounter, but it is usually underestimated; therefore, effective assessments need to be performed before any serious complications. The aim of this study was to identify the frequency and characteristics of dysphagia in multiple sclerosis patients of Khuzestan MS society, using a Persian version of Dysphagia in Multiple Sclerosis (DYMUS) questionnaire.

Method: 105 consecutive MS patients (84 F and 21 M, mean age 33.8 ± 8.5 years, mean disease duration 3.5 ± 3.1 years, mean Expanded Disability Status Scale (EDSS) 1.8 ± 1.3) participated in the study and the DYMUS questionnaire was administered by a trained speech therapist.

Results: The results have shown that 55 MS patients (52.4%) had dysphagia and the dysphagia was significantly associated with the disease course of MS (p = 0.02). However, significant associations between DYMUS values and EDSS, disease duration, age, and gender were not observed. (Respectively, p = 0.4, p = 0.09, p = 0.1, p = 1.0). In the dysphagia group, based on dysphagia severity, 17.1% and 35.2% of patients had mild and alarming dysphagia, respectively. Although, the patients with alarming dysphagia had longer disease duration, higher EDSS score and more with SP, PP and PR disease course than the patients with mild dysphagia, these differences were not significant.

Conclusion: The oropharyngeal dysphagia in MS patients is very common even in early stages of the disease; therefore, it is important to assess these patients carefully and to initiate a treatment program if needed.
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http://dx.doi.org/10.1016/j.msard.2017.08.012DOI Listing
October 2017

A Comparative Study of Iranian Female Primary School Teachers' Quality of Life With and Without Voice Complaints.

J Voice 2016 Nov 4;30(6):688-692. Epub 2016 Mar 4.

Islamic Azad University of Kashan, Kashan, Iran.

Objectives/hypothesis: As the largest group of professional voice users, teachers are more likely to face voice disorders because of their specific job conditions. This study aimed to compare the quality of life in female teachers with and without voice complaints.

Study Design: This is a cross-sectional descriptive-analytical study.

Methods: This was a cross-sectional study of samples of primary school female teachers with (n = 60) and without (n = 60) voice disorders. All teachers were serving in Tehran, Iran. Professional background information was obtained through interviews, and quality of life was measured using the 36-item Short Form Health Survey questionnaire. A comparison was made between the study groups to analyze the data.

Results: The mean age of teachers was 44 (standard deviation = 3.95) years. There were no significant differences between the two groups regarding their professional background. However, significant differences were observed between the two groups in all subscales of the 36-item Short Form Health Survey, including physical and social functioning, role limitations because of either physical or emotional problems, bodily pain, general health, vitality, and mental health (P < 0.05).

Conclusion: Findings of this study point to the effect of voice complaint on quality of life and showed that teachers with voice complaints suffer from poor health-related quality of life. Therefore, both voice-specific and unspecific assessment methods are required for clinical diagnostics.
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http://dx.doi.org/10.1016/j.jvoice.2015.08.019DOI Listing
November 2016

Relationship Between Voice and Motor Disabilities of Parkinson's Disease.

J Voice 2016 Nov 22;30(6):768.e17-768.e22. Epub 2015 Dec 22.

Iran University of Medical Sciences (IUMS), Tehran, Iran.

To evaluate voice of Iranian patients with Parkinson's disease (PD) and find any relationship between motor disabilities and acoustic voice parameters as speech motor components. We evaluated 27 Farsi-speaking PD patients and 21 age- and sex-matched healthy persons as control. Motor performance was assessed by the Unified Parkinson's Disease Rating Scale part III and Hoehn and Yahr rating scale in the "on" state. Acoustic voice evaluation, including fundamental frequency (f0), standard deviation of f0, minimum of f0, maximum of f0, shimmer, jitter, and harmonic to noise ratio, was done using the Praat software via /a/ prolongation. No difference was seen between the voice of the patients and the voice of the controls. f0 and its variation had a significant correlation with the duration of the disease, but did not have any relationships with the Unified Parkinson's Disease Rating Scale part III. Only limited relationship was observed between voice and motor disabilities. Tremor is an important main feature of PD that affects motor and phonation systems. Females had an older age at onset, more prolonged disease, and more severe motor disabilities (not statistically significant), but phonation disorders were more frequent in males and showed more relationship with severity of motor disabilities. Voice is affected by PD earlier than many other motor components and is more sensitive to disease progression. Tremor is the most effective part of PD that impacts voice. PD has more effect on voice of male versus female patients.
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http://dx.doi.org/10.1016/j.jvoice.2015.10.022DOI Listing
November 2016

High crash areas resulting in injuries and deaths in Tehran traffic areas from november 2011 through february 2012: a geographic information system analysis.

Med J Islam Repub Iran 2015 1;29:214. Epub 2015 Jun 1.

Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran.

Background: Evaluation of intra-city roads in terms of environmental factors of motor vehicle injuries can help us to better identify these factors and the share of each of the factors in injuries. Therefore, this study was conducted to determine the high injury areas and the risk factors of motor vehicle crashes resulting in injury and death in Tehran, the capital city of Iran, from November 2011 through February 2012.

Methods: In this cross sectional study, the locations of the motor vehicle injuries resulting in injuries and deaths were obtained from police stations in Tehran. The coordinates of the injuries locations were extracted and entered into the Arc-GIS software to overlay the different layers of geographical data and extract the risk map.

Results: A total of 4257 motor vehicle injuries were evaluated in this study. Forty-two injuries (1%) resulted in death and 4215 injuries (99%) resulted in injury. The traffic districts 5 and 21 had the highest frequency of injuries resulting in death. The type of the motor vehicle resulting in injury or death was motorcycle in 2330 injuries (54.73%).

Conclusion: The frequency of traffic injuries is more in the west and northwest areas of Tehran, and it is caused more by motorcycles in terms of traffic and motor injuries resulting in injury and death. It is useful to conduct more studies to better identify these factors considering their importance in traffic injuries.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4606940PMC
October 2015

Voice-related disability of Iranian patients with temporomandibular disorders.

J Voice 2014 Nov 28;28(6):841.e17-20. Epub 2014 Aug 28.

University of Tehran, Tehran, Iran.

Introduction: The relationship between handicaps because of voice disorders and temporomandibular disorders (TMDs) severity was examined.

Method: Fifty-two Persian women with temporomandibular disorder (TMD) were examined by two dentists in separate sessions and the assessment protocol of the Dentistry Clinic of Tehran University of Medical Sciences was filled by both dentists and finally they gave their opinion separately about the existence of TMD and categorized the severity of TMD as mild, moderate, and severe. To assess perceived disability resulting from voice disorders in TMD patients, the voice handicap index (VHI) questionnaire was used.

Results: The total score of VHI in 80.8% of patients with TMD was equal to or more than 14.5. A significant positive relationship was found between the severity of TMD and the total score of VHI (P = 0.000, r = 0.79).

Conclusions: It seems that a comprehensive voice assessment should be included in the evaluation of TMD, and considering different effects of voice disorders on patients' lives, a complete voice evaluation including voice-related disability is necessary to understand the nature of pathophysiology of TMD.
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http://dx.doi.org/10.1016/j.jvoice.2014.04.001DOI Listing
November 2014

Cross-cultural adaptation and validation of the voice-related quality of life into Persian.

J Voice 2014 Nov 5;28(6):842.e1-9. Epub 2014 Jul 5.

Department of Speech Therapy, University of Social Welfare and Rehabilitation Science, Tehran, Iran.

The purpose of this study was to adapt and determine reliability, validity, and responsiveness of voice-related quality of life (V-RQOL) for Persian. A total of 300 patients with voice disorders participated in the study. Also, 116 people without any voice disorders volunteered to participate in the study as a control group. All participants filled in the Persian version of V-RQOL. The reliability, validity, and responsiveness were studied. Results demonstrated that the discrimination coefficient is significant for all items. The V-RQOL measure showed a strong internal consistency (Cronbach alpha coefficient = 0.88-0.91) and a good test-retest reliability (r = 0.93-0.95). Pre- and post-treatment results showed a significant responsiveness (functioning, 0.000; social-emotional, 0.001; and total, 0.000). Effect size range of 1.26-1.59 and the standardized response mean range of 1.07-1.41 were obtained for V-RQOL. It seems that the Persian version of V-RQOL is valid, reliable, and responsive to change, and this questionnaire can be used for completing voice evaluation for patients with dysphonia.
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http://dx.doi.org/10.1016/j.jvoice.2014.03.013DOI Listing
November 2014

Intrarater and interrater reliability of sagittal head posture: a novel technique performed by a physiotherapist and a speech and language pathologist.

J Voice 2014 Nov 18;28(6):842.e11-6. Epub 2014 Jun 18.

Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Introduction: Different professionals such as speech and language pathologists and voice scientists are involved in the evaluation of head and neck posture. Therefore, a reliable, time-efficient, and precise method of posture assessment is essential for use in clinical and research settings. Photogrammetry is one of the most commonly used methods to assess head and neck posture. The objectives of this study were to evaluate the intrarater reliability of the method with a large sample size and the interrater reliability by two different specialists (a physiotherapist and a speech and language pathologist).

Method: A total of three hundred four subjects (144 males and 160 females) aged between 18 and 28 years participated in the study. During the test session, a photograph was taken of the left-side profile of each subject in their ordinary and comfortable position. The head posture angle of each picture was calculated by two raters. The whole procedure was repeated in a retest session, 24 hours later. A total number of eight analyses were performed for each subject. The reliability was evaluated at several stages hierarchically and after confirming the reliability in each step, the next step was investigated. Paired t tests on the differences of scores obtained at all the aforementioned stages were used to ensure the absence of any systematic bias. To assess the reliability, intraclass correlation coefficients (ICCs) and the standard error of measurements (SEMs) were calculated.

Results: There was no significant difference between the mean values of the test and the retest angles at any stage of calculating the head posture angle in both pictures by both examiners (P > 0.05). The ICC and SEM values calculated for all stages were between 0.86-0.97 and 0.52-1.53, respectively.

Conclusion: Systematic bias has not occurred at any stage. The ICC and SEM values calculated have demonstrated that there were appropriate relative and absolute reliabilities in all stages. This method is suggested to be used simply in research and clinical areas by different specialists.
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http://dx.doi.org/10.1016/j.jvoice.2014.02.014DOI Listing
November 2014

Fundamental frequency changes of Persian speakers across the life span.

J Voice 2014 May 22;28(3):274-81. Epub 2014 Jan 22.

Faculty of Industrial and Mechanical Engineering, Islamic Azad University, Qazvin Branch, Qazvin, Iran.

This study was designed to investigate changes in fundamental frequency (F0) across the life span in Persian speakers. Four hundred children and adults were asked to produce a sustained phonation of vowel /a/ and their voice samples were studied in 10 age groups. F0 was analyzed using the software Praat (Version 5.1.17.). The results revealed that (1) the mean F0 in both sexes decreases from childhood to adulthood; (2) significant F0 differences between boys and girls begin at the age of 12 years; and (3) the range of F0 changes in the life span is greater in men (178.38 Hz) than in women (113.57 Hz). These findings provide new data for Persian-speaking children, women, and men and could be beneficial for Iranian speech and language pathologists.
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http://dx.doi.org/10.1016/j.jvoice.2013.10.012DOI Listing
May 2014

The effect of levamisole on mortality rate among patients with severe burn injuries.

J Res Med Sci 2013 Sep;18(9):795-800

Psychologist, Shahid Lavasani Hospital, Social Security Organization, Tehran, Iran.

Background: Burn injuries are one of the main causes of mortality and morbidity throughout the world and burn patients have higher chances for infection due to their decreased immune resistance. Levamisole, as an immunomodulation agent, stimulates the immune response against infection.

Materials And Methods: This randomized clinical trial was conducted in Motahari Burn Center, Tehran, Iran. Patients who had second- or third-degree burn with involvement of more than 50% of total body surface area (TBSA) were studied. The levamisole group received levamisole tablet, 100 mg per day. Meantime, both the levamisole and control groups received the standard therapy of the Burn Center, based on a standard protocol. Then, the outcome of the patients was evaluated.

Results: 237 patients entered the study. After excluding 42 patients with inhalation injury, electrical and chemical burns, and the patients who died in the first 72 h, 195 patients remained in the study, including 110 patients in the control group and 85 in the treatment group. The mean age of all patients (between 13 to 64 years) was 33.29 ± 11.39 years (Mean ± SD), and it was 33.86 ± 11.45 years in the control group and 32.57 ± 11.32 years in the treatment group. The mean percentage of TBSA burn was 64.50 ± 14.34 and 68.58 ± 14.55 for the levamisole and control groups, respectively, with the range of 50-100% and 50-95% TBSA. The mortality rate was 68 (61.8%) patients in the control group and 50 (58.8%) patients in the treatment group (P = 0.8).

Conclusion: According to this study, there was no significant relationship between improvement of mortality and levamisole consumption.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3872590PMC
September 2013

Long-term average spectra of adult Iranian speakers' voice.

J Voice 2014 May 13;28(3):305-10. Epub 2013 Nov 13.

Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Introduction: Long-term average spectrum (LTAS) allows quantifying the voice quality and provides an overview of the mean spectral characteristics of a voice. The aims of this study were to survey normal spectral characteristics of Persian and investigate sex-related changes in the source characteristics of dynamic speech using LTAS.

Method: Speech samples obtained from 30 male and 30 female Persian-speaking participants reading a text in habitual pitch and loudness level. At the LTAS window and using Praat software, the amplitude values were obtained at equal intervals of 160 Hz, ranging from 0 to 8 kHz.

Results: The main features of the average spectrum were as follows: peak in the region of 480 Hz with a reduction at higher frequencies, a 20 dB decline from 480 to 960 Hz, a flat region from 960 to 1920 Hz, a further decline from 1920 to 3040 Hz, and a further flat region from 3040 to 8000 Hz. In comparison to men, women revealed significant lower levels of amplitude at frequencies of 160 and 320 Hz and higher levels of amplitude at frequencies of 960, 3360, 3520, 3680, 3840, and 5920 Hz.

Conclusion: The overall shape and gender-related energy distribution pattern of the LTAS of Persian were more similar to those of English than to those of Korean. The more phonetic differences between Persian and Korean compared with Persian and English might contribute to different spectral characteristics. The present study tried to clarify the spectral characteristics of Iranian male and female voices and focused on more breathy voice quality for women than men.
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http://dx.doi.org/10.1016/j.jvoice.2013.09.002DOI Listing
May 2014

Cross-cultural equivalence and evaluation of psychometric properties of voice handicap index into Persian.

J Voice 2013 Mar 29;27(2):258.e15-258.e22. Epub 2012 Dec 29.

Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Quality of life is one of the important aspects in the assessment of health and treatment data output. The purpose of this study was to adapt and determine reliability and validity of Voice Handicap Index (VHI) in Persian. The subjects were 80 patients with voice disorders and 80 volunteers without any voice disorders as a control group. All subjects filled in the Persian version of VHI. The test was repeated 2 weeks later. The reliability and validity were studied. All items had significant discrimination coefficient. The internal consistency and reliability of test and retest in VHI total score and three subtests were achieved. It seems that the Persian version of VHI is a valid and reliable questionnaire, which voice therapists may use for completing their evaluation for patients with voice disorders, and it gives more information about the nature of voice disorder to specialists.
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http://dx.doi.org/10.1016/j.jvoice.2012.09.006DOI Listing
March 2013

Cutoff point at voice handicap index used to screen voice disorders among persian speakers.

J Voice 2013 Jan 22;27(1):130.e1-130.e5. Epub 2012 Nov 22.

Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.

Purpose: This study aimed to determine the cutoff point at Voice Handicap Index (VHI) as a diagnostic tool in the process of voice disorder assessment. It further surveyed a correlation between diagnosis made by speech specialist and a corresponding opinion reported by client on the existence/nonexistence of any voice disorder.

Method: A sample of 160 individuals who completed the VHI questionnaire were assigned to clinical and nonclinical groups. They were asked about the opinions of their voices on a Likert scale.

Results: A correlation was found between the specialists' diagnosis and clients' opinion on their own voices (r=0.882); however, this was reduced (r=0.717) when a mild voice disorder existed among the nonclinical group. The cutoff point, at which VHI sensitivity (for screening subjects with and without normal voices) reached its maximal value (92%) and its highest level of specificity (95%), was observed to be 14.5.

Conclusion: Occasional incompatibility between specialists' diagnoses and that of clients' opinion about existence/nonexistence of voice disorders within the individuals should be considered significant. Also, a score of 14.5 can be accepted as the cutoff point at VHI (Persian version) in the voice disorder assessment process.
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http://dx.doi.org/10.1016/j.jvoice.2012.08.007DOI Listing
January 2013

Quality of life among Iranian adults before and after rhinoplasty.

Aesthetic Plast Surg 2012 Apr 13;36(2):448-52. Epub 2011 Oct 13.

Plastic and Reconstructive Surgery, Hazrat Fateme Hospital, Tehran University of Medical Science, Tehran, Iran.

Background: Despite developments in the therapeutic field of cosmetic surgery, there is a little information about the effects of cosmetic procedures on quality of life (QOL), especially in Iran. Rhinoplasty is one of the most common cosmetic surgeries. This type of surgery has remarkable effects on physical and mental health and also improves nasal functioning. The purpose of this study was to survey QOL among Iranian adults before and after rhinoplasty.

Methods: In this descriptive and analytical cross-sectional study, from March 2009 to March 2010, data were collected from 75 subjects, 16 years old and above, before and 6 months after rhinoplasty. A trained interviewer interviewed and completed standardized questionnaires investigating QOL, including the SF-36 version 2, NOSE, and Rosenberg questionnaires. Data analysis was conducted using SPSS ver. 16. Results before and after surgery were compared.

Results: The mean age of the subjects was 26.05 ± 7.78 years, with a median of 24 years. The female-to-male ratio was 4.35:1. In all cases and all questionnaires, QOL was improved after rhinoplasty. Significant differences were observed on the NOSE questionnaire (p = 0.005) and the Rosenberg questionnaire (p = 0.002). On the SF-36 questionnaire, significant differences were observed in four subscales, including physical functioning (p = 0.047), role of emotion (p = 0.01), bodily pain (p = 0.01), and vitality (p = 0.05).

Conclusions: According to this study, QOL is improved after rhinoplasty in Iranian adult patients. With proper patient selection and a successful operation, improvement of physical and mental health can be expected.
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http://dx.doi.org/10.1007/s00266-011-9820-yDOI Listing
April 2012