Research Information System
GLOHEALTH JOURNAL, vol.2, no.1, pp.46-52, 2026 (Peer-Reviewed Journal)
Abstract Mitochondria mutations are very rare occurrences. Bilateral hearing loss is the second most common clinical finding among patients with mitochondrial mutations. This report presents the audiovestibular findings of a patient with mitochondrial mutations (9035T>C) are presented in this report. For audiological evaluation, pure tone audiometry test, acoustic immitanmetry and TEOAE (Transient Otoacoustic Emission) test were used. Hearing within normal limits bilaterally was observed. In the vestibular system evaluation, VEMP (Vestibular Evoked Myogenic Potentials) test was applied. In the ocular VEMP (oVEMP) test, P1:14 ms and N1: 9.67 ms. In the cervical VEMP (cVEMP) test, P1: 13 ms and N1: 26 ms. CVEMP and oVEMP amplitudes can be used as a quantitative measure of otolith function. As a result of these tests, the patient's VEMP values were observed within normal limits. Due to the progressive nature of hearing loss, timely diagnosis of genetic disease is crucial to providing the necessary support and interventions to affected individuals. Keywords: Mt.9035T>C; mitochondria mutations; audiology; vestibular tests; MT-ATP6