Transient otoacoustic emissions with contralateral suppression findings in COVID-19 patients

Başöz, Meliha; Tas, Nida; Gedik, Özge; Ozdemir, Sumeyye; Aksoy, Fadlullah

doi:10.1186/s43163-022-00231-z

Cited by 4 publications

(9 citation statements)

References 18 publications

(35 reference statements)

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“…In agreement, in the study of Basoz et al, (17) , both air and bone pure tone audiometry of the patient group were found significantly higher than the control group (p < 0.05). When the speech tests of the participants were examined, the SRTs of the patient group were significantly higher (p = 0.000), while a significant decrease was not obtained in the speech discrimination scores (p = 0.804).…”

Section: Discussionsupporting

confidence: 88%

Covid-19 and Audio-Vestibular System in Egyptian Adult Subjects

2022

Ain Shams Medical Journal

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Background: Despite Audio-vestibular symptoms were reported in several studies, still limited and further investigations are necessary to confirm the effects of COVID -19 on the audio-vestibular system and estimate their incidence. Aim of the study:This study aimed to highlight the extent of affection of the audio-vestibular system in post COVID 19 Egyptian subjects and to describe the pattern of affection, if any. Patients and Method: A total number of 105 confirmed post COVID-19 subjects, recruited from Ain shams University hospitals compared to 50 normal age and gender matched healthy volunteers with no history of COVID 19 participated as control group. All participants were subjected to: detailed history taking, Otological and otoscopic examination, Pure Tone & speech Audiometry, Acoustic immittancemetry testing and screening bedside tests for vestibular and balance impairment.Results: Thirty-four subjects (32%) had hearing loss. Twentynine subjects (28%) had SNHL, 5 subjects (5%) had CHL and 16 cases (15%) had vestibular affection. Conclusion:Post COVID-19 auditory-vestibular affection is to be documented. The majority of affected subjects had bilateral, moderate, high frequency SNHL with sudden onset. BPPV is the most common cause of post

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Section: Discussionsupporting

confidence: 88%

Covid-19 and Audio-Vestibular System in Egyptian Adult Subjects

2022

Ain Shams Medical Journal

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“…Basoz et al (2022) used the ILO-292-II device for to measure suppression and presented 75 peSPL of stimulus and 60 dB SPL of broadband noise. The minimum reproducibility was 70%, whereas the stability threshold was 80 19 . Koca et al (2022) presented noise using an external audiometer with inserted earphones for the CS test.…”

Section: Discussionmentioning

confidence: 91%

“…Furthermore, the TEOAE results of post-COVID-19 at 3000 and 4000 Hz were lower than those of the pre-COVID-19 period. Basoz et al stated that both the emission and suppression results were lower in a study group with a history of COVID-19, especially at high frequencies 19 . In another study evaluating the efferent system in adults after COVID-19, a decrease was observed at 6 kHz according to the DPOAE results, and at all frequencies according to the contralateral suppression results in the study group 20 .…”

Section: Discussionmentioning

confidence: 94%

“…When the participants of studies on COVID-19 and suppression are examined in the literature, it is observed that a control group is generally used. The authors compared the test results of the participants with and without a history of COVID-19 19,20 . In our study, pre-and post-COVID-19 measurements of the same participants were compared.…”

Section: Discussionmentioning

confidence: 99%

“…They found that efferent systems were adversely affected in the high-frequency regions. 19 In another study by Emekci et al (2022), healthy individuals were compared with those with COVID-19.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

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The Effect of COVID-19 on the Efferent Auditory System in Adults

Çelikgün,

Sarlık,

Yurdakul Çınar

2023

J Am Acad Audiol

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Background: It was evaluated the effects of COVID-19 on the cochlea and auditory efferent system with Transient Evoked Otoacoustic Emission (TEOAE) and Contralateral Suppression (CS) Test in this research. Purpose: We aimed to evaluate the pre- and post-COVID-19 Transient Evoked Otoacoustic Emission and Contralateral Suppression results in the same participants to reveal the effect of COVID-19 on the efferent auditory system. Study Design: The CS measurement was performed twice for each participant before a diagnosis of COVID-19 and after treatment of COVID-19 as a within-subjects study design. All participants had normal hearing at all frequencies (≤ 25 dB HL at 0.25 – 8 kHz) and had normal middle ear functions in both ears. The tests were performed in the linear mod by using double-probe on the Otodynamics ILO292-II device. The CS of the OAEs was measured at 65 dB peSPL TEOAE stimulus and 65 dB SPL broadband noise. All parameters including reproducibility, noise, and stability were considered during the measurements. Study Samples: The study included 11 patients [8 female and 3 male] aged between 20 and 35 years (mean age is 26 ± 3.66). Data Collection and Analysis: Wilcoxon Signed Ranks Test and Spearman's correlation test were used for statistical analysis via Statistical Package for the Social Sciences (SPSS) version 23.0. Results: The Wilcoxon Signed Rank Test showed that there was no significant difference between the pre-and post-COVID-19 TEOAE CS results in all tested frequencies and measurement parameters, 1000 Hz to 4000 Hz, respectively Z= -0.356, -0.089, -0.533, -0.533, -1.156 and p<0.05. Although not statistically significant, the CS results obtained post-COVID-19 at all frequencies except 4000 Hz were lower than that pre- COVID-19. According to the overall TEOAE results after COVID-19, a statistically significant decrease was observed at 3000 Hz (Z=-2.847, p<0.01) and 4000 Hz (Z=-2.401, p<0.05) compared to the pre-measurement. Conclusions: The study findings show that SARS-CoV-2 can affect the cochlea and the auditory efferent system in adults. Post-COVID-19 audiological evaluation can also be considered part of the general medical examination. Key words: Covid-19, SARS-CoV-2, efferent system, contralateral suppression, otoacoustic emission

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Evaluation of cochlear and auditory brainstem functions in COVID-19 patients; a case control study

Nassar,

El-Kabarity,

El-Din Hassan

et al. 2024

Egypt J Otolaryngol

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Background Many viral infections can cause hearing loss due to affection of cochlear hair cells or neurogenic pathway. Although, the damage secondary to viral infections is mainly cochlear affection; auditory brainstem can be affected as well. It was predicted that SARS-COV-2 infection can similarly affect the auditory system. This study aimed to detect affection in auditory system and if present investigate the possible site of lesion (up to the level of the brain stem) in relation to COVID-19 infection. Methods This is a case control study, where the study group constituted of thirty adults, diagnosed with COVID-19 at least 2 weeks prior to testing and up to 6 months, without previous auditory complaints pre-COVID-19 or other risk factors that could affect the auditory pathway. Fifteen adult participants that were age and gender matched to the study group with no previous history of covid-19 infection constituted the control group. Audiological evaluations done to all participants were pure-tone and speech audiometry, tympanometry, transient-evoked otoacoustic emission with and without contralateral suppression and auditory brainstem response measurements. Results The study group showed significantly worse pure tone thresholds at high frequencies 4 and 8 kHz (p < 0.01), significantly worse transient-evoked otoacoustic emission signal to noise ratio at 2800 Hz and 4000 Hz (p < 0.05) and significantly lower total suppression index (p<0.05). On the other hand, there was no significant difference between both groups in auditory brainstem response wave latencies (p > 0.05). Conclusion COVID-19 had subtle effect on cochlear basal turn, and it is shown that the auditory efferent system may also be affected, while the auditory nerve and afferent brainstem pathways seems to be spared. Moreover, the absence of the symptoms of auditory dysfunction postcovid-19 does not guarantee normal auditory functions.

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Transient otoacoustic emissions with contralateral suppression findings in COVID-19 patients

Cited by 4 publications

References 18 publications

Covid-19 and Audio-Vestibular System in Egyptian Adult Subjects

Covid-19 and Audio-Vestibular System in Egyptian Adult Subjects

The Effect of COVID-19 on the Efferent Auditory System in Adults

Evaluation of cochlear and auditory brainstem functions in COVID-19 patients; a case control study

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