The evaluation of hearing functions in patients with childhood vitiligo: are melanocytes involved in the inner ear?
Öz
Background
Vitiligo is a common pigment disorder characterized by destruction of melanocytes in epidermis. The inner ear is also one of the remarkable sites of melanocytes. The mechanism destroying the melanocytes in vitiligo may also affect other melanocyctic organs. Several studies have been reported some hearing abnormalities in patients with vitiligo.
Objective
The purpose of the study is to evaluate the hearing functions with transient-evoked otoacoustic emission (TOAE) test according to the clinical types, disease activity, localization at onset, age at onset, and duration of of the disease in the children with vitiligo.
Methods
Thirty-five patients with childhood vitiligo (18 females and 17 males, mean age 9.71 ± 3.75) and a healthy control group consisting 35 children (18 females and 17 males, mean age 9.23 ± 3.40) were consecutively enrolled to this prospective study. Clinical characteristics of the disease including types, activity, localization at onset, age at onset and duration were noted. Auditory functions of children with vitiligo and healthy controls were measured by TOAE test. Test results were compared between vitiligo and control group, and in subgroups of vitiligo patients according to disease characteristics.
Results
There was no statistically significant differences between the childhood vitiligo group and control group when TOAE test results compared (p > 0.05). Children with disease onset at the head and neck had significantly higher TOAE test results including in the right ear at a frequency of 4 KHz and average frequency, while compared to the children with disease onset at other areas, respectively (p=0.012, p=0.034). There was no statistically significant differences, while TOAE results of subgroups compared according to clinical types, activity, and duration of the disease in the patients with vitiligo (p > 0.05).
Conclusions
According to the our study, which is the first one measures the auditory functions by TOAE in children with vitiligo, TOAE test results did not differ from healthy controls. Although the melanocytes are present in the inner ear, our findings suggest that auditory functions of children with vitiligo are not affected.
Anahtar Kelimeler
Kaynakça
- 1. Iannella G, Greco A, Didona D, et al. Vitiligo: Pathogenesis, clinical variants and treatment approaches.Autoimmun Rev 2016;15:335-43.
- 2. Anbar TS, El-Badry MM, McGrath JA, Abdel-Azim ES. Most individuals with either segmental or non-segmental vitiligo display evidence of bilateral cochlear dysfunction. Br J Dermatol 2015;172:406-11.
- 3. La Ferriere KA, Arenberg IK, Hawkins JE Jr, Johnsson LG. Melanocytes of the vestibular labyrinth and their relationship to the microvasculature. Ann Otol Rhinol Laryngol 1974;83:685-94.
- 4. Tachibana M. Sound needs sound melanocytes to be heard. Pigment Cell Res 1999;12:344-54.
- 5. Prieve B, Fitzgerald S. Otoacoustic emissions. In: Handbook of Clinical Audiology. (Katz J, eds), Lippincot Williams and Wilkins, 2003;440–60.
- 6. Kovasc SO. Vitiligo. J Am Acad Dermatol 1998;38:647-66.
- 7. Escalente-Ugalde C, Poblano A, Montes de Oca Eet al. No evidence of hearing loss in patients with vitiligo. Arch Dermatol 1991;127:1240.
- 8. Aydogan K, Turan OF, Onart S, et al. Audiological abnormalities in patients with vitiligo. Clin Exp Dermatol 2006;31:110-3.
Ayrıntılar
Birincil Dil
İngilizce
Konular
Klinik Tıp Bilimleri
Bölüm
Araştırma Makalesi
Yazarlar
Osman Caglar Cevik
Bu kişi benim
Türkiye
Arzu Aydin Capkin
Bu kişi benim
Türkiye
Ahmet Arslan
Bu kişi benim
Türkiye
Neslihan Kul
Bu kişi benim
Türkiye
Deniz Aksu Arica
*
Türkiye
Yayımlanma Tarihi
31 Ekim 2018
Gönderilme Tarihi
29 Eylül 2018
Kabul Tarihi
2 Ekim 2018
Yayımlandığı Sayı
Yıl 2018 Cilt: 1 Sayı: 2