BREAKING! Study Finds That COVID-19 Increases Risk of Stroke By Eight times Compared To Influenza
Source: COVID-19 and Strokes Jul 03, 2020 4 years, 4 months, 2 weeks, 5 days, 18 hours, 10 minutes ago
COVID-19 and Strokes: A new study finds that although both Influenza and COVID-19 can raise the risk for a stroke, the odds appear to be eight times higher with the SARS-CoV-2 coronavirus.
The researchers found that among more than 1,900 patients with COVID-19, 1.6% suffered a stroke, versus 0.2% of nearly 1,500 patients seriously ill with flu.
The research findings are published in the journal JAMA Neurology.
https://jamanetwork.com/journals/jamaneurology/fullarticle/2768098
Researcher Dr Neal Parikh, an Assistant Professor of neurology and neuroscience at Weill Cornell Medicine in New York City told Thailand Medical News, "Doctors and practitioners taking care of patients with COVID-19 infection should remain vigilant for signs and symptoms of stroke, because prompt diagnosis may permit effective stroke treatment.”
Dr Parikh added, "Fundamentally, our results support the notion that COVID-19 infection is more severe than influenza infection."
Dr Parikh and colleagues compared the incidence of stroke among COVID patients and flu patients in two New York City hospitals. Patients with coronavirus were assessed March 4 through May 2, while researchers analyzed flu data from Jan. 1, 2016, through May 31, 2018.
Two prominent neurologists who reviewed the findings weren't surprised that COVID was linked with stroke.
Dr Larry Goldstein, Professor and chairman of neurology at the University of Kentucky said, "Infections and other inflammatory conditions are established risk factors for stroke, so it is not surprising that patients with COVID-19 disease might have stroke as a complication of the infection."
He added that COVID-19 disease has also been associated with blood clots that could increase stroke risk.
Director of stroke at Lenox Hill Hospital in New York City, Dr Salman Azhar said, "This virus has a predilection to cause some level of clotting, and we think that maybe it's because of increases in inflammation in the body."
Dr Azhar explained that COVID-19 attacks the cells that line blood vessels, which is one reason for the increased risk for blood clots leading to stroke.
He added that the virus also increases the production of clotting factors, and that antibodies also play a role in the development of stroke.
He said, "There are antibodies that we've known for a long time, nothing to do with this virus, but we know increase people's risk to have strokes and other blood vessel clots, and we are seeing them in a higher incidence in patients with COVID-19. Because of these risks, COVID-19 patients are monitored for signs of clotting. In general, every patient with COVID-19 gets put on low-level blood thinners to try and prevent clots.”
He added, "Patients who have clots are put on higher doses of blood thinners to keep them from having clots that may damage vital organs.”
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Dr Azhar warned, both young and old COVID patients can develop clots, with the sickest most at risk.
It was also observed that in some patients, stroke may be the first sign of COVID-19. In this study, more than one-quarter of patients went to the emergency room because of a stroke and were later diagnosed with the coronavirus.
However luckily only a small percentage of COVID-19 patients have strokes, Azhar said. Out of 1,916 patients who had the virus in the study, 31 suffered a stroke.
The disability after a stroke can be a lasting effect of the virus, he said.
Also not all parts of the country have seen the same risk of stroke in COVID patients as reported in New York, said Dr Goldstein, whose practice is in Lexington, Kentucky.
He noted, "We have yet to have a single patient with both conditions, although the number with COVID-19 in our area is thankfully much lower than in New York. Regardless, COVID-19 disease is clearly associated with a propensity for blood clot formation, and stroke needs to be considered as a possible complication."
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