Blood Clot News and Research

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A Blood Clot is a mass of blood that forms when blood platelets, proteins, and cells stick together. When a blood clot is attached to the wall of a blood vessel, it is called a thrombus. When it moves through the bloodstream and blocks the flow of blood in another part of the body, it is called an embolus.

New stem cell-based vascular grafts could revolutionize cardiac surgery

Scientists at the Wisconsin National Primate Research Center (WNPRC) and the Morgridge Institute for Research at the University of Wisconsin–Madison have been at the forefront of stem cell research and regenerative biology since James Thomson isolated the first human embryonic stem cell in 1998.

10 Mar 2025

RCSI study finds immune cell ‘memories’ can increase the risk for blood clots long after inflammation

New research from RCSI University of Medicine and Health Sciences has found that white blood cells which ‘remember’ past inflammation events are quick to overreact, raising the risk of blood clots.

10 Mar 2025

Aspirin may help prevent cancer spread by stimulating the immune system

Scientists have uncovered the mechanism behind how aspirin could reduce the metastasis of some cancers by stimulating the immune system.

5 Mar 2025

Study reveals best treatment strategy for high-risk pulmonary embolism

A current study involving the University Hospital Bonn (UKB) has investigated which treatment strategy offers the best chances of survival in high-risk acute pulmonary embolism.

4 Mar 2025

Intermittent fasting cuts heart attack risk by preventing dangerous blood clots

Intermittent fasting may reduce the risk of blood clots and cardiovascular disease by inhibiting platelet activation.

2 Mar 2025

Scientists use Zwitterions to prevent blood clotting in medical devices

Zwitterions sound likes a distant cousin of Twitter (X), but in fact they are a common macromolecule found in human cells. Scientists at the University of Sydney are also now using Zwitterions to create materials that could stop blood clots from forming in medical devices and implants.

19 Feb 2025

Risk of bleeding with blood thinners reduces over time

Blood thinners prescribed after blood clots in leg or lung initially increase the risk of bleeding, especially in women and elderly.

14 Feb 2025

Lung signals trigger blood clot formation in cancer patients

Blood clots form in response to signals from the lungs of cancer patients—not from other organ sites, as previously thought—according to a preclinical study by Weill Cornell Medicine, Memorial Sloan Kettering Cancer Center and University of California San Diego Health. Clots are the second-leading cause of death among cancer patients with advanced disease or aggressive tumors.

11 Feb 2025

Tenecteplase injection after clot removal improves stroke recovery

Removing a blood clot from a large brain artery, then injecting the clot-dissolving drug tenecteplase into the artery resulted in stroke survivors being more likely to have better function 90 days after their stroke than those receiving standard clot removal, according to preliminary late-breaking science presented today at the American Stroke Association's International Stroke Conference 2025.

8 Feb 2025

No extra benefit from mechanical clot removal over medications in some strokes

Removing a clot blocking a medium- or small-sized artery in the brain mechanically is a safe treatment for a common type of stroke; however, it did not lessen disability more than best medical treatment (including clot-busting medication if indicated) alone, according to preliminary late-breaking science presented today at the American Stroke Association's International Stroke Conference 2025.

5 Feb 2025

Rapid blood test could identify brain bleeds from clot-caused strokes

A blood test may rapidly distinguish brain bleeds from clot-caused strokes, even before people with stroke symptoms reach the emergency room, according to a preliminary study to be presented at the American Stroke Association's International Stroke Conference 2025.

30 Jan 2025

Regular dental flossing linked to lower risk of stroke and irregular heartbeats

Flossing your teeth at least once a week may be linked to a lower risk of stroke caused by a blood clot blocking brain blood flow and irregular heartbeats, according to a preliminary study to be presented at the American Stroke Association's International Stroke Conference 2025.

30 Jan 2025

Study reveals abelacimab’s potential to improve anticoagulation safety for AFib patients

Abelacimab, a factor XI inhibitor, demonstrated a 62–69% reduction in major bleeding compared to rivaroxaban in atrial fibrillation patients at moderate-to-high stroke risk, with comparable safety and efficacy. While ischemic stroke rates were slightly higher, they were not statistically significant, warranting further phase 3 trials for confirmation.

23 Jan 2025

Researchers develop mRNA-based blood clots to treat osteoarthritis

University of Wisconsin–Madison researchers have developed a promising technique for treating osteoarthritis using therapeutic blood clots activated by messenger RNA.

22 Jan 2025

Stem cell therapy shows promise in restoring brain activity after stroke

Every 40 seconds, someone in the United States has a stroke. For survivors of the most common type of stroke, called an ischemic stroke, only about 5 percent fully recover.

17 Jan 2025

Reduced blood thinner dose may lower bleeding risk and hospital visits

For people taking popular blood thinners after having a blood clot, a reduced dose may limit the future risk of bleeding as well as hospital visits, a Michigan Medicine-led study suggests.

19 Dec 2024

Long-term air pollution exposure linked to venous thromboembolism risk

A large study found that greater exposure to long-term air pollution was linked with increased risks for blood clots that can occur in deep veins, which, if untreated, can block blood flow and cause serious complications, even death.

12 Dec 2024

Mexican American women show highest rates of medication nonadherence after stroke

Women who have had a stroke may be less likely than men to take medications to prevent a second stroke, with Mexican American women reporting the highest rates of nonadherence, according to new research published today in the Journal of the American Heart Association, an open access, peer-reviewed journal of the American Heart Association.

4 Dec 2024

Study links menopause hormone therapy to varied heart and blood clot risks

Research on hormone therapy reveals critical insights into cardiovascular disease risks, guiding clinicians in selecting safer treatment options for menopause.

3 Dec 2024

Edoxaban proves effective in preventing blood clots, stroke after heart valve surgery

Edoxaban, an oral anticoagulant, was equally or more effective than warfarin in reducing the risk of stroke and blood clots for patients after heart valve replacement surgery, according to preliminary late-breaking science presented today at the American Heart Association's Scientific Sessions 2024.

18 Nov 2024