Hearing Loss, Other Auditory Problems Strongly Linked With C
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Hearing loss and other auditory problems are strongly associated with Covid-19 according to a systematic review of research evidence led by scientists. Researchers found 56 studies that identified an association between COVID-19 and auditory and vestibular problems. They pooled data from 24 of the studies to estimate that the prevalence of hearing loss was 7.6%, tinnitus was 14.8% and vertigo was 7.2%.

However, the team - who followed up their review carried out a year ago - described the quality of the studies as fair. Their data primarily used self-reported questionnaires or medical records to obtain COVID-19 related symptoms, rather than the more scientifically reliable hearing tests.

Professor Munro, is currently leading a year-long UK study to investigate the possible long-term impact of COVID-19 on hearing among people who have been previously treated in hospital for the virus. His team hope to accurately estimate the number and severity of COVID-19 related hearing disorders in the UK, and discover what parts of the auditory system might be affected

They will also explore the association between these and other factors such as lifestyle, the presence of one or more additional conditions and critical care interventions. A recent study led by Professor Munro, suggested that more than 13 percent of patients who were discharged from a hospital reported a change in their hearing.

A researcher said: Though the evidence is of varying quality, more and more studies are being carried out so the evidence base is growing. What we really need are studies that compare COVID-19 cases with controls, such as patients admitted to hospital with other health conditions. While this is alarming, caution is required as it is unclear if changes to hearing are directly attributed to COVID-19 or to other factors, such as treatments to deliver urgent care.

Source:
https://www.tandfonline.com/doi/full/10.1080/14992027.2020.1798519
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