Health
Studies have found that patients with high blood pressure are more likely to have brain complications
People with high blood pressure or diabetes COVID-19 New studies warn that they are more likely to develop fatal brain complications.
Researchers have found that Covid patients with high blood pressure and diabetes are at increased risk of life-threatening neurological complications such as cerebral hemorrhage and stroke.
The virus that causes Covid-19 first attacks cells of the respiratory system, often causing inflammation of the lungs, putting people at risk of developing pneumonia.
But the effects of the virus are also felt in other systems of the body, scientists say.
Dr. Colbay Freeman, Principal Resident of the Department of Radiology, US Penn School of Medicine, lead author of the study, said: “The effects of Covid-19 go far beyond the chest.
“Brain complications are rare, but more reports of Covid-19 infection can have catastrophic consequences.”
To learn more about this phenomenon, Dr. Freeman and colleagues at the University of Pennsylvania’s School of Medicine, Perelman, examined Covid patients who underwent head CT and / or MRI in a healthcare system earlier this year.
Of the 1,357 Covid-19 patients admitted to the system during the last four months, 81 underwent brain scans.
The most common reasons for brain scans were changes in mental status and neurological problems such as speech and visual problems.
Of the 81 patients who underwent a brain scan, 18 (or just over 1 in 5) showed what was considered “urgent” or “serious”, such as stroke, cerebral hemorrhage, or vascular occlusion.
At least half of the patients had a high medical history blood pressure And / or type 2 diabetes. Three patients with urgent or serious findings died during hospitalization.
Dr. Freemun said: “Covid-19 is associated with neurological symptoms, and hypertension and type 2 diabetes are common in individuals who develop these symptoms.
(Image: Getty Images)
“These populations may be at high risk of neurological complications and should be carefully monitored.”
He suggests that two-thirds of patients with “significant” results in the study are African-American, and that these patients may also require closer monitoring. Stated.
Dr. Freeman said the exact mechanism of the harmful neurological effects of Covid is unknown and may involve multiple factors, but the general theory is that infection-related inflammation. Is said to be the main cause.
In this study, blood markers of inflammation were higher in people with significant consequences.
Dr. Freeman said: “When your body is in an inflammatory state, it produces all these molecules, called cytokines, which help mobilize the immune system to perform its function.
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“Unfortunately, when cytokines are overproduced, the immune response actually begins to damage.”
He said the study is ongoing and as more data comes in, the research team will continue to publish the findings.
They are also investigating the incidence of neurological complications in Covid patients with extracorporeal membrane oxygenation (ECMO), a pump system for circulating and replenishing oxygen in the blood.
Some patients in this study needed ECMO during hospitalization.
“In addition, there are plans to launch a larger prospective study assessing delayed, long-term, and chronic neurological symptoms that may not be known in this early stage of the pandemic,” said Dr. Freeman. Added.
The findings will be presented at the Radiological Society of North America (RSNA) Annual Meeting later this month.
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