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ORIGINAL ARTICLE
Year : 2013  |  Volume : 19  |  Issue : 2  |  Page : 55-58

Vestibular evoked myogenic potential in sudden sensorineural hearing loss


1 Department of Ear Nose Throat, Dr. Somervell Memorial CSI Medical College Hospital, Karakkonam, Trivandrum, Kerala, India
2 Audiovestibular Unit, Christian Medical College Vellore, Tamil Nadu, India
3 Department of Ear Nose Throat, Christian Medical College Vellore, Tamil Nadu, India

Correspondence Address:
Feroze Kancharu Khan
Department of Ear Nose Throat, Dr. Somervel Memorial CSI Medical College, Karakonam, Trivandrum, Kerala
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-7749.113504

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Aim and Objective: To investigate saccular damage in patients with sudden sensorineural hearing loss (SSNHL) with or without vertigo and to evaluate the saccular damage according to the hearing loss and presence or absence of vertigo. Materials and Methods: All tests done in this study were performed in the audio vestibular unit of ENT department from September 2009 to November 2010. Statistical Analysis Used: The association between the severity of hearing loss and changes in the vestibular evoked myogenic potential (VEMP) recordings were assessed using descriptive statistics. The pattern of VEMP in different diseases and also the behavior of VEMP in presence or absence of vertigo were evaluated using SPSS 15. Results: Among 27 patients there were 11 cases of idiopathic SSNHL. Out of nine unaffected ears, 88% had normal and 12% had absent VEMP. Whereas out of 13 affected ears, only 53.9% had normal VEMP. Among all the 54 ears, 17 ears had normal hearing. In this group 76.47% had normal VEMP. The group with hearing loss > 90 dB had 61.53% absent VEMP. Conclusions: In patients with unilateral SSNHL, there was a tendency for the affected ear to have absent VEMP indicating the saccular involvement. The extent of saccular damage did not correspond to the amount of hearing loss or presence or absence of vertigo.


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