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Does COVID-19 cause blood clots, strokes?

Your coronavirus questions answered

SAN ANTONIO – KSAT viewers asked, “Does the new coronavirus cause blood clots and strokes?”

Dr. Lyssa Ochoa, a vascular surgeon in San Antonio, said there is a link.

“It’s interesting because we’re worried about respiratory symptoms, but what we’re finding is that these COVID patients are, in medical terms, they’re called hypercoagulable – they’re prone to blood clots,” Ochoa said.

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Ochoa said doctors are seeing strokes in some young COVID-19 patients and blood clots in patients’ legs.

Clots in the leg are called deep venous thrombosis. They can lead to pulmonary embolism, which is when a clot breaks off and goes into a person’s lungs, Ochoa said.

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“These are life-threatening complications,” Ochoa said.

She said doctors are working together to determine the best treatments for COVID-19 patients, which may include putting them on blood thinners or partial blood thinners.

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Watch Dr. Ochoa answer the question in the video clip above, and click here to watch the full interview with Dr. Ochoa.

KSAT12 is working hard to get answers to the most important questions you have about the new coronavirus and COVID-19.

Every weekday night during the 6 p.m. broadcast news and during the streaming KSAT News at Nine, we will have experts on to answer your questions and give the latest information about COVID-19.

Find more answers and ask your own questions on our SAQ page.


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