ABSTRACT
BACKGROUNDS: SARS-CoV-2 is known to be a neurotrophic virus. However, the effect of this virus on the hearing system is still uncertain. OBJECTIVES: We aimed to investigate the possible effect of COVID-19 on hearing. MATERIALS AND METHODS: Thirty healthcare workers who had COVID-19 after hearing evaluation with pure tone audiometry (PTA) for any reason in the last 1 year were included in the study. PTA and transient evoked otoacoustic emissions (TEOAE) tests were performed in 15 of 30 patients during the active infection period. For all 30 patients, otoscopic examination plus PTA and TEOAE tests were performed at the end of the first month after their treatment. RESULTS: When the PTA results of 30 patients (60 ears) before and after COVID-19 were compared, a significant decrease in hearing level was found only at 1000 Hz (p < .05). There were no significant differences at other frequencies. When the PTA and TEAOE test results of 15 patients (30 ears) that were performed during and after COVID-19 were compared, no significant differences were found. CONCLUSION AND SIGNIFICANCE: We conclude that COVID-19 may cause hearing loss. However, this result needs to be confirmed with comprehensive studies to be conducted in larger patient groups.
Subject(s)
Auditory Threshold/physiology , COVID-19/complications , Hearing Loss/diagnosis , Hearing Loss/virology , Adult , Audiometry, Pure-Tone , COVID-19/physiopathology , COVID-19/therapy , Cohort Studies , Female , Hearing Loss/epidemiology , Humans , Male , Middle Aged , Otoacoustic Emissions, Spontaneous , Turkey , Young AdultABSTRACT
The emergence of a new coronavirus strain (SARS-CoV-2) in December 2019 from China led to a global pandemic. The lack of herd immunity against this virus and the possibility of viral spread from asymptomatic individuals is still a major challenge for the prevention of viral transmission. The studies of Islamoglu and Hanege evaluated the presence of the virus in different bodily secretions (Cerumen) as a potential source of viral spread among patients infected with SARS-CoV-2. We would like to comment on these 2 studies.