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Pathologist found blood clots in 'almost every organ' during autopsies on Covid-19 patients

CNN's Erin Burnett speaks to Dr. Amy Rapkiewicz about how autopsies performed on coronavirus patients reveal a pattern of blood clotting in vessels and organs.

Posted: Jul 10, 2020 7:13 AM


Autopsies on people who died of the coronavirus are helping doctors understand how the disease affects the body -- and one of the most remarkable findings concerned blood clotting, a pathologist says.

Dr. Amy Rapkiewicz, the chairman of the department of pathology at NYU Langone Medical Center, spoke to Erin Burnett on OutFront Thursday night.

Some Covid-19 patients are known to develop blood clotting issues, but the degree and the extent to which that occurs was described as "dramatic" by Rapkiewicz.

In the early stages of the pandemic, bedside clinicians noticed a lot of blood clotting "in lines and various large vessels," she said.

"What we saw at autopsy was sort of an extension of that," she said. "The clotting was not only in the large vessels but also in the smaller vessels.

"And this was dramatic, because though we might have expected it in the lungs, we found it in almost every organ that we looked at in our autopsy study," she said. Rapkiewicz's study outlining her findings was published at the end of June in The Lancet journal EClinicalMedicine.

The autopsies also showed something unusual about megakaryocytes, or large bone marrow cells. They usually don't circulate outside the bones and lungs, Rapkiewicz said.

"We found them in the heart and the kidneys and the liver and other organs," she said. "Notably in the heart, megakaryocytes produce something called platelets that are intimately involved in blood clotting."
Researchers hope to discover how these cells influence small vessel clotting in Covid-19, she said.

Pathologists have been surprised by something they didn't find.

During early stages of the pandemic, doctors thought the virus would provoke inflammation in the heart with myocarditis, she said.

But autopsies have found a very low incidents of myocarditis, Rapkiewicz said.

She said that one of the "opportunities -- if there is one to count in the virus" is that pathologists have had a chance to examine the organs of many Covid-19 victims and investigate the disease processes that take place. She said that opportunity really wasn't available with H1N1 or the original SARS outbreak.

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Tennessee Coronavirus Cases

Confirmed Cases: 114098

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CountyConfirmedDeaths
Shelby21924298
Davidson19812208
Rutherford625453
Hamilton580347
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Unassigned29285
Out of TN279314
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