A study recently published by the scientific journal BMJ Case Reports shows that permanent deafness is one of the sequels that can be left by Covid-19. The research was carried out after a 45-year-old man was diagnosed with permanent partial hearing loss after suffering from a severe condition in the UK.
Doctors say the problem is a rare reaction, but despite the severity of the condition, it can be reversed if the patient has an early diagnosis and starts treatment immediately.
It is worth mentioning that, although the research was carried out based on a case reported in the United Kingdom, other patients had hearing loss as a result of Covid-19 in countries such as Thailand, the United States and China.
Understand the case study in the UK
The 45-year-old man was hospitalized, undergoing treatment for Covid-19, when he had a sudden hearing loss and was referred to the throat, nose and ear sector.
According to the researchers, the patient sought medical attention after 10 days with the symptoms of the disease and was admitted to the Intensive Care Unit (ICU), with difficulty breathing, and was intubated for a month.
In addition to hearing loss, the patient had other symptoms, which were treated with remdesivir – currently being studied in Brazil -, anti-inflammatory drugs and blood transfusion.
After a week without the breathing tube, he noticed a ringing in his left ear and had a sudden hearing loss, never having experienced similar problems before. To reverse the condition, doctors used oral corticosteroids and applied other medications directly to the ear.
With treatment, the patient recovered part of his hearing capacity. However, because it did not revert to what it was before the infection, the researchers assessed the damage as irreversible.
The article still shows that the 45-year-old man was asthmatic, but he never had problems before Covid-19 in the ear. Thus, doctors concluded that SARS-CoV-2 was the real cause of the sequel.
What causes hearing loss in patients with Covid-19?
According to experts, infections caused by viruses, such as herpes or influenza, and problems with blood circulation can cause a sensorineural hearing loss, caused by lesions in the auditory nerve.
In patients who contract the coronavirus, deafness can be caused by a mechanism similar to the one that generates the loss of smell and taste, which is the result of the action of the virus in the central nervous system and in the peripheral nerves.
Another study by researchers in the United Kingdom with more than 120 patients infected with the new coronavirus, who were treated at a hospital linked to the University of Manchester, points out that 15% of people had similar sequelae, such as hearing loss and tinnitus during the period of incubation and even after the end of treatment.
With this discovery, the recommendation of the specialists is that the doctors try to understand immediately if the patient with symptoms of Covid-19 noticed some strangeness in the hearing, so that the diagnosis and the treatment are made as soon as possible.
If you have the symptoms mentioned in this matter, see a doctor.