Blood Type May Predict Which Cancer Patients Are Prone to Clots

Last Updated on April 16, 2022 by Admin

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News Picture: Blood Type May Predict Which Cancer Patients Are Prone to Clots

FRIDAY, April 15, 2022 (HealthDay News)

Cancer patients’ blood type may play a role in their risk for dangerous blood clots, researchers say.

Cancer and its treatments increase the risk for venous thromboembolism (VTE). That includes deep-vein thrombosis (DVT, a blood clot that typically forms in the deep veins of the leg) and pulmonary embolism (PE, a life-threatening condition that occurs when a blood clot breaks free and travels to the lungs‘ arteries).

VTE is the leading cause of preventable hospital deaths in the United States.

Factors such as tumor or cancer type are now used to identify cancer patients at high risk of VTE, but many go unidentified. This study concluded that cancer patients with non-O blood types, such as types A, B and AB, are at increased risk for VTE.

“We’ve known tumor type helps determine the baseline risk for VTE,” said study author Cornelia Englisch, a doctoral student at the Medical University of Vienna. “But we continue to see that these risk assessments fail to capture all cancer patients who develop these blood clots. By solely assessing tumor type, we miss up to 50% of people who develop VTE.”

The findings from an analysis of data from more than 1,700 people in Austria with a new or recurrent cancer diagnosis were published April 13 in the journal Blood Advances.

The researchers reported that cancer patients with non-O blood types were more likely to develop VTE three months after their diagnosis or cancer recurrence.

Englisch said the increased risk is not apparent at the time of diagnosis, because cancer therapies increase the odds of developing blood clots.

The investigators also found that patients with non-O blood types and tumors outside the high-risk disease category were more likely to develop clots. This shows that relying solely on tumor type to assess VTE risk may miss many at-risk patients.

Further research is needed before blood typing might prove useful in assessing cancer patients’ VTE risk.

“Blood typing is easy to perform, can be done worldwide, and doesn’t require any specialized background knowledge or equipment,” Englisch said in a journal news release.

“And of course, every risk factor that we identify helps us to understand these life-threatening complications in cancer patients better,” she added. “Perhaps this will create awareness for the role blood types can play as clinical biomarkers.”

The new study follows another, published last year, that examined treatment of cancer-related VTE.

More information

The U.S. National Heart, Lung, and Blood Institute has more about VTE.

SOURCE: Blood Advances, news release, April 13, 2022

By Robert Preidt HealthDay Reporter

MedicalNews

Copyright © 2021 HealthDay. All rights reserved.



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