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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Rehabilitation Sciences and Research
- نوع مقاله: Journal Article
- کلمات کلیدی: Dichotic digit test,Dichotic rhyme test,Auditory processing disorder,Amblyaudia,Free recall attention
- چکیده:
- چکیده انگلیسی: Background: Chronic otitis media with effusion (CME) primarily affectschildren. Temporary auditory deprivation is a serious complication of thisdisease and can result in auditory processing disorder, as demonstrated in paststudies. The objective of the current study was to investigate the effects of CMEduration on binaural processing and amblyaudia.Methods: Ninety-four children were examined, including 48 children (29girls=60%) with different CME durations (from 3 months to more than 9months) and 46 children (34 girls=73%) with no history of CME or a durationof less than 3 months CME. Persian versions of the dichotic digits and dichoticrhyme tests were applied.Results: Significant differences between the groups (P<0.001) in dichoticdigits difference (DDD) and dichotic rhyme difference (DRD) in free recallconditions were identified. With longer durations of CME, the DDD and DRDaverage scores were increased in the CME positive group, and the probability ofamblyaudia was also enhanced.Conclusion: A history of CME and the long-term auditory deprivation resultingfrom it in early childhood can increase the risk of amblyaudia.
- انتشار مقاله: 19-03-1397
- نویسندگان: Shahnaz Alamdari,Yones Lotfi,Alireza Karimi Yazdi,Mohanna Javanbakht,Enayatollah Bakhshi
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Otorhinolaryngology
- نوع مقاله: Journal Article
- کلمات کلیدی: tympanoplasty,Partial perforation,Total perforation
- چکیده:
- چکیده انگلیسی: Introduction:
To describe the underlay tympanoplasty technique using an acellular dermal graft(AlloDerm) for tympanic membrane (TM) reconstruction in a guinea pig model and to demonstrate the feasibility of the technique using AlloDerm tissue harvested from the prepuce as a source of tissue for future grafting in human TM reconstruction.
Materials and Methods:
The prepuce was divided during circumcision and the acellular dermis was prepared using a number of standard processes. Two groups of guinea pigs were prepared. In the case group (20 guinea pigs and 40 ears) removal of TM was performed with tympanoplasty using AlloDerm, and in the control group (eight guinea pigs and 16 ears), removal of TM was performed without tympanoplasty. In each group, the TM was completely removed in one ear and partially removed on the other side, and the integrity of the TMs was re-evaluated after 8 weeks.
Results:
In the case group, the healing rates in the completely and partially removed TMs were 83.3% and 94.4%, respectively. The difference in healing rate (0% and 66.7%, respectively) was statistically significant (P<0.05).
Conclusion:
The use of AlloDerm is safe and effective in the repair of TM perforations in a guinea pig model. Acceptable results of AlloDerm tympanoplasty in a guinea pig model may pave the way for the effective use of this material in human TM reconstructions.- انتشار مقاله: 10-02-1393
- نویسندگان: Farhad Farahani,Alireza Karimi Yazdi,Mohammad Ghasemi,Elnaz Shariatpanahi,Abdol-Mohammad Kajbafzadeh,Saeid Amanpour
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Otorhinolaryngology
- نوع مقاله: Journal Article
- کلمات کلیدی: vestibular,VEMP,Bone Conduction
- چکیده:
- چکیده انگلیسی: Introduction:
Vestibular evoked myogenic potential (VEMP) has recently been broadly studied in vestibular disorders. As it is evoked by loud sound stimulation, even mild conductive hearing loss may affect VEMP results. Bone-conducted (BC) stimulus is an alternative stimulation for evoking this response. This study aims to assess the characteristics of BC-VEMP in different groups of patients.
Materials and Methods:
We performed a cross sectional analysis on 20 healthy volunteers with normal pure-tone audiometry as a control group; and on a group of patients consisted of 20 participants with conductive hearing loss, five with bilateral sensorineural hearing loss and four with vestibular schawannoma. AC and BC-VEMP were performed in all participants.
Results:
In control group the VEMP responses to both kinds of stimuli had an acceptable morphology and consisted of p13 and n23 waves. Latency value of these main components in each type of stimulus was not significantly different (P>0.05). However, the mean amplitude was larger in BC modality than AC stimulation (P=0.025). In the group with conductive hearing loss, the VEMP response was absent in fifteen (46.87%) of the 32 ears using the AC method, whereas all (100%) displayed positive elicitability of VEMP by BC method. Normal VEMP responses in both stimuli were evoked in all patients with sensorineural hearing loss. In patients with unilateral vestibular schwannomas (VS), 2 (50.00%) had neither AC-VEMP nor BC-VEMP.
Conclusion:
Auditory stimuli delivered by bone conduction can evoke VEMP response. These responses are of vestibular origin and can be used in vestibular evaluation of patients with conductive hearing loss.- انتشار مقاله: 31-04-1391
- نویسندگان: Parvane Mahdi,Amin Amali,Akram Pourbakht,Alireza Karimi Yazdi,Ali Bassam
- مشاهده