- Rachel Schraer
- BBC health reporter
6 hours ago
Researchers have found that people who have been diagnosed with COVID-19 within 6 months are more likely to suffer from depression, dementia, psychosis and stroke.
One-third of people who have been infected with the new coronavirus will develop a mental or neurological disease, or cause a recurrence of mental or neurological disease.
Those who are hospitalized due to the new crown or need intensive care treatment are at higher risk.
This may be due to the dual result of stress and the direct impact of the virus on the brain.
British scientists studied the electronic case records of more than 500,000 patients with COVID-19 in the United States, and their likelihood of suffering from 14 psychological or neurological diseases, including:
- Cerebral hemorrhage
- Parkinson’s disease
- Guillain-Barre Syndrome
- Mood disorders
The researchers explained that anxiety and mood disorders are the most common problems in patients with new crowns, and it is more likely to be related to the tension and stress caused by illness or hospitalization.
But stroke and dementia are more likely to be the physiological effects of the virus itself, or the overall response of the patient’s body to infection.
The new crown did not increase the risk of Parkinson’s disease or Guillain-Barré syndrome (related to the flu).
The British scientists’ research is observational, so researchers are not sure whether the new crown is causing these diseases, or some people will have stroke or depression in the next 6 months even if they are not infected.
However, after the researchers compared this group of people who have had the new crown with the other two groups: influenza and respiratory infections, researchers at the University of Oxford concluded that compared with people with other respiratory diseases, patients with new coronary The possibility of brain-related diseases is higher.
In order to be more comparable, the researchers matched the subjects according to their age, gender, race, and health status.
The results found that people who have had the new crown are 16% more likely to suffer from psychological or neurological diseases than other respiratory infections; at the same time, they are 44% more likely than the flu.
Not only that, the more severe the COVID-19 condition, the higher the probability that they will be diagnosed with mental and brain diseases later.
24% of people infected with the new crown virus will have emotional problems, anxiety or mental illness, but this proportion has risen to 25% among hospitalized patients with new crown virus; it is 28% among patients in intensive care. But if delirium still occurs during the illness, the proportion is even higher, reaching 36%.
2% of all COVID-19 patients are affected by stroke, and the proportion of strokes in those who have been treated in the intensive care unit rises to 7%; the proportion of strokes in patients with delirium is 9%.
The proportion of people diagnosed with dementia in all patients with new coronary disease is 0.7%, but the proportion of patients with new coronary delirium is as high as 5%.
Dr Sara Imarisio, head of the Alzheimer’s Research Department in the United Kingdom, said that previous studies emphasized that patients with dementia are at higher risk of severe COVID-19. And this new study investigates that the reverse relationship between the two may also be true.
But Dr. Imarizo said that the study did not particularly focus on the causal relationship between the two. She said it is important for researchers to be able to find the reasons behind these results.
Directly affect the brain
Masud Husain, professor of neurology at the University of Oxford, explained that there is evidence that the new coronavirus can enter the brain and cause direct damage.
It can also have other indirect effects, such as affecting blood clotting and causing stroke. At the same time, ordinary inflammation caused by the body in response to the new crown infection can also affect the brain.
For more than one-third of people with one or more of these diseases, this is the first time they have been diagnosed with these diseases.
But even for patients with a history of these diseases, the researchers said that the new crown may cause the possibility of recurrence of their old disease.
Prof Dame Til Wykes, a professor at the Institute of Psychiatry, Psychology and Neuroscience at King’s College London, said the study confirmed their suspicion that the new crown diagnosis is not only related to respiratory symptoms, but also to mental and neurological diseases. .
She further said that the 6 months after diagnosis proved that the “sequelae” may appear much later than expected, which is not surprising to those who suffer from long-term symptoms of the new crown.
She said, “Although as expected, the consequences of COVID-19 hospitalization are more serious. However, the study also pointed out that the virus will also have obvious serious consequences for infected people who are not hospitalized.”