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Paper Information

Journal:   RESEARCHER BULLETIN OF MEDICAL SCIENCES (PEJOUHANDEH)   SPRING 2003 , Volume 8 , Number 1 (31); Page(s) 15 To 18.
 
Paper: 

SURVEYING THE RELATIONSHIP BETWEEN BAER IMPAIRMENT AND PTA TEST IN DEFINIT MS PATIENTS IN LOGHMAN HAKIM HOSPITAL, 2000-2001

 
 
Author(s):  ILKHANI M.*, POURSINA M.M.
 
* Department of Nuclear Medicine shaheed Beheshti University of Medical sciences
 
Abstract: 

Background: Hearing loss is one of the manifestations of multiple sclerosis. BAER test shows abnormality in many patients, however, few patients complain of hearing loss. This study has been designed to assess hearing state of MS patients with BAER impairments without hearing symptoms by performing PTA test during one year, 2000-2001, in Loghman Hakim Hospital.
Materials and methods: This case-control study was performed on 20 MS patients with BAER impaired test as case group and 20 other non-neurologic patients with normal BAER test. Groups were matched according to the age, sex and socioeconomic status. There was no history of any hearing symptoms in both groups. The data regarding clinical manifestations and impairment of specific BAER components were obtained from the case group. Both groups performed PTA test. The interpretation of BAER and PTA test was done based on the normal and abnormal values in the related laboratories in Loghman Hakim Hospital.
Results: In each group 5 patients showed hearing loss. In the case group four patients had hearing loss in frequencies above and below 4000 Hz and only one had exclusive high tone hearing loss. In contrast 4 patients in the control group had exclusive high tone hearing loss, however, it is known that low tone haring loss is clinically more valuable. The Fishers exact test revealed no significant difference regarding the hearing loss pattern.
Conclusion: Hearing loss is well-defined is MS but we could only consider a modest probability of relationship between BAER impairment and hearing loss in asymptomatic patients in some limited frequencies. Thus we recommend similar-large multicentric studies to settle the issue.

 
Keyword(s): MULTIPLE SCLEROSIS, HEARING LOSS, BAER TEST, PTA TEST
 
References: 
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