The effect of otic melanocytes destruction on the auditory and vestibular functions in vitiligo patients

Document Type : Original Articles

Authors

1 MSc, Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran

2 Assistant Professor, Department of Otorhinolaryngology, Imam Khomeini Educational Complex Hospital, Tehran University of Medical Sciences, Tehran, Iran

3 MSc, Academic Member, Department of Audiology, School of Rehabilitation, Isfahan University of Medical Sciences, Isfahan, Iran

4 Lecture, Academic Member, Department of Audiology, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran

5 Professor, Department of Otorhinolaryngology, Imam Khomeini Educational Complex Hospital, Tehran University of Medical Sciences, Tehran, Iran

6 Dermatologist, Department of Dermatology, Imam Khomeini Educational Complex Hospital, Tehran University of Medical Sciences, Tehran, Iran

7 Associate Professor; Academic Member, Department of Biostatistic, Rehabilitation Research Center, School of Rehabilitation Sciences, Tehran University of Medical Sciences, Tehran, Iran

10.22122/jrrs.v8i5.813

Abstract

Introduction: Vitiligo is a systemic disease which leads to the destruction of melanocytes of the body. The hallmark of vitiligo is the formation of white patches in the affected skin but, because of the presence of melanocytes in the auditory and vestibular apparatuses, these systems may also be involved at some point in the course of the disease.Materials and Methods: 21 patients with vitiligo (12 females, 9 males) and 21 healthy controls (11 females, 10 males) were enrolled in this case-control study. Pure tone audiometry (PTA), Auditory brainstem responses (ABR) and Vestibular evoked myogenic potential (VEMP) were carried out for all participants.Results: High frequency sensory neural hearing loss was indicated in 8 (38.09%) patients. ABR analysis revealed that 10 (47.61%) patients had an abnormal increase in latency of the wave III, which was statistically meaningful in both right and left ears (P = 0.024 and P = 0.001, respectively) and that 6 subjects (28.57%) had an abnormal prolongation of the IPL I-III. However, findings from the VEMP measurements showed no recorded responses in the left ear of 1 (4.76%) patient and statistically significant prolongations in the latency of the p13 were shown in 5 (23.80%) patients (P = 0.001).Conclusion: Because of antioxidant, ion-recycling and protective roles of melanocytes in the auditory and vestibular systems, the involvements of these systems are possible in vitiligo vulgaris.Keywords: Vitiligo vulgaris, Melanocytes, Sensoryneural hearing loss, Auditory brainstem response, Vestibular evoked myogenic potential