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Source: COVID-19 Clinical Care  Apr 22, 2020  4 years, 5 months, 2 weeks, 1 day, 4 hours, 12 minutes ago

READ! COVID-19 Clinical Care: Minute Blood Clots Could Be Aggravating And Making COVID-19 More Lethal

READ! COVID-19 Clinical Care: Minute Blood Clots Could Be Aggravating And Making COVID-19 More Lethal
Source: COVID-19 Clinical Care  Apr 22, 2020  4 years, 5 months, 2 weeks, 1 day, 4 hours, 12 minutes ago
COVID-19 Clinical Care: According to medical researchers from Icahn School of Medicine at Mount Sinai, the presence of minute blood clots could be causing more severity to the conditions of moderate and critical COVID-19 patients. https://www.mountsinai.org/about/newsroom/2020/mount-sinai-study-finds-covid19-may-be-driven-by-pulmonary-thrombi-and-pulmonary-endothelial-dysfunction-pr


 
The SARS-CoV-2 coronavirus appears to promote blood clotting throughout the body, which might help explain why the germ is so much more deadly than other members of its viral family, experts say.
 
Certain individuals severely ill with COVID-19 develop blood clots in their lungs and other major organs, doctors have observed.
 
Healthcare professionals suspect these small blood clots are one reason why COVID-19 patients struggle for breath, said Dr Hooman Poor, a pulmonary and critical care doctor with Mount Sinai Beth Israel in New York City.
 
Dr Poor told Thailand Medical News, "We see not just the possibility of blood clots in the lungs.  In COVID-19 patients who require dialysis because of kidney failure, their catheters are clotting off every second."
 
It was also being observed that these tiny blood clots could also be responsible for one of the unique symptoms of COVID-19: a sudden loss of smell, said Dr. Jeanne Marrazzo, a professor of infectious diseases with the University of Alabama at Birmingham. It also might explain why patients who seem to be doing well suddenly crash.
 
Furthermore clotting associated with COVID-19 is so pronounced that "some people are beginning to say, 'Look, anybody that comes to the hospital needs to be put on'" blood thinners at the start of their treatments, said Dr. Carlos del Rio, a professor of infectious diseases at Emory University in Atlanta.
 
Dr Poor recently treated five critically ill COVID-19 patients with tPA, a clot-busting drug normally used on stroke patients.
 
All five patients had respiratory failure early in their disease, along with blood oxygen levels and clot-related protein markers that indicated that lung blood clots could be robbing them of breath.
 
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Dr Poor commented, "The first patient I gave it to had a dramatic, immediate response, indicating that blood clots were definitely playing a role in why she was so sick at that time."
 
; Dr Poor added that all five showed immediate improvements in their blood oxygen levels, but ultimately they did not have good outcomes.
 
Despite the outcomes, Dr Poor believes more research is needed before regularly treating COVID-19 patients with either blood-thinning or clot-busting drugs.
 
He added, "These are both very dangerous medicines. It would be a shame to administer these medicines inappropriately and then have a bad outcome, like a catastrophic bleed."
 
Dr Poor and his colleagues suspected that blood clots might be contributing to people's acute respiratory distress syndrome (ARDS) because the lungs of COVID-19 patients do not develop the kind of stiffness usually seen in other viruses that hamper breathing.
 
He  further added, "When you have these abnormalities in oxygen and carbon dioxide with lungs that are not particularly stiff, the first thing that jumps to mind is there's something wrong with the blood vessels of the lungs.”
 
Many physicians and medical researchers have also observed clots with COVID-19. Dutch researchers found that about a third of 184 patients in intensive care with coronavirus had a complication associated with a clot—in the lungs or the legs, or even as severe as a clot-caused stroke or heart attack, according to their report in the April 10 Thrombosis Research. https://www.thrombosisresearch.com/article/S0049-3848(20)30120-1/fulltext
 
Typically lung blood clots usually occur because a large blood clot in the leg—a deep vein thrombosis breaks free and travels up into the lung.
 
However it is not unusual for viruses to promote blood clots. For example, HIV can promote clotting in patients.
How the SARS-CoV-2 coronavirus might promote blood clotting is still not clear.
 
Dr Poor and Dr Marrazzo speculated that the virus somehow damages human cells in a way that promotes clotting. Poor noted that COVID-19 patients have elevated levels of D-dimer, a small protein fragment produced by blood clots.
 
Also another recent study in the journal Physiological Reviews noted that people with already high levels of plasmin, a key enzyme that breaks down blood clots, tend to have more severe COVID-19 infection. https://journals.physiology.org/doi/full/10.1152/physrev.00013.2020
 
It appears that Plasmin appears to help the novel coronavirus more readily bind with human cells, said lead researcher Dr. Hong-Long Ji, a professor of cellular and molecular biology at the University of Texas Health Science Center at Tyler.
 
Dr Li warned, “If this is true, then using clot-busting drugs to treat COVID-19 might backfire by enhancing the patients' infection. If you give the patient plasmin or other kinds of proteins to remove the clots, then the problem is this patient still has a virus in their body and they also have a problem with bleeding in every kind of important organ."
 
There are also other studies related to the issue:
 
https://www.thrombosisresearch.com/article/S0049-3848(20)30138-9/fulltext
 
https://www.thrombosisresearch.com/article/S0049-3848(20)30139-0/fulltext
 
https://www.thrombosisresearch.com/article/S0049-3848(20)30137-7/fulltext

Latest Study: https://www.onlinejacc.org/content/early/2020/04/15/j.jacc.2020.04.031
 
For more on COVID-19 Clinical Care, keep logging on to Thailand Medical News
 
We desperately need your kind help! Please help support our site and our initiatives to propel and aid research by making a donation to help sustain the site. We are also trying to raise funds to help poor undocumented refugees who have no access to public healthcare during the COVID-19 crisis.  Donations are accepted via paypalhttps://www.thailandmedical.news/p/sponsorship
 

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