Treating COVID-19 patients with high doses of blood thinners doesn't appear to help them and could be harmful, researchers report.
"COVID-19 patients appear to have an increased incidence of blood clots. Many hospitals and health care providers began to use high doses of blood thinners to prevent these clots or treat them preemptively," explained study co-author Dr. Juan Reyes, director ...
After administering clot-busting drugs to treat a stroke, using blood pressure cuffs to squeeze each arm might aid recovery, a new, small Chinese study suggests.
In the technique -- called remote ischemic post-conditioning -- the flow of oxygen-rich blood is repeatedly interrupted and restored using blood pressure cuffs on the arms. Earlier studies have found that the technique may p...
Hospitalized COVID-19 patients face an increased risk of developing dangerous blood clots, a new review indicates.
The odds of a clot are highest for the most critically ill patients. Analysis of 66 studies found that 23% of COVID-19 patients in an intensive care unit (ICU) developed a blood clot in the leg, known as a deep vein thrombosis (DVT).
Most strokes strike when an artery in the brain suddenly becomes blocked, but new research shows a rarer cause of strokes is becoming more common.
It's called cerebral venous thrombosis (CVT), and it happens when a vein in the brain is clogged. While CVT is estimated to cause less than 1% of all strokes, scientists discovered it is now more prevalent and affecting a different demo...
COVID-19 is linked to potentially fatal blood clots. Researchers now believe they've found out how they occur, which potentially could lead to better treatment.
"While many forms of illness can generate blood clots, the endothelial cells that line the inside of blood vessels play a surprisingly large role in COVID-19 clotting," said researcher Dr. Alfred Lee, an associate professor o...
In a small French study, three-quarters of all COVID-19 patients admitted to intensive care went on to experience a dangerous blood clot in the leg that can travel to the lungs and potentially cause death.
Known as a DVT, the condition first gained notoriety as so-called "economy class syndrome," when passengers on long-haul flights developed them after sitting still for too long. Bu...
New research reveals that COVID-19 attacks the lungs in a far different manner from the flu.
Unlike most respiratory diseases, significant impacts on blood vessels were seen in the lungs of seven COVID-19 patients. The lung tissue of those patients was compared to lung tissue from seven people who died of pneumonia caused by the flu.
A new study offers reassurance that many surgery patients can safely be freed from one discomfort of recovery -- wearing compression stockings to prevent blood clots.
The garments, which help keep blood from pooling in the lower legs, have long been used post-surgery. One reason has been to thwart blood clots, which can form in the leg veins when a patient is laid up in recovery.
The new coronavirus isn't just attacking the lungs: New research shows it's causing harm to the gastrointestinal tract, especially in more advanced cases of COVID-19.
A variety of imaging scans performed on hospitalized COVID-19 patients showed bowel abnormalities, according to a study published online May 11 in Radiology. Many of the effects were severe and linked with clots a...
As more evidence emerges that COVID-19 is tied to an increased risk of dangerous blood clots, new research suggests that giving patients blood thinners may improve their odds of survival.
"Using anticoagulants should be considered when patients get admitted to the ER and have tested positive for COVID-19, to possibly improve outcomes," study senior author Dr. Valentin Fuster, physicia...
Stress placed on the heart by COVID-19, a hesitancy by people to call 911, and even reluctance on the part of bystanders to perform CPR may be boosting rates of out-of-hospital cardiac arrest, a new report finds.
The data comes from four provinces in northern Italy, a region that was hit very hard and very early by the coronavirus pandemic.
As the toll of the COVID-19 pandemic grows, it is increasingly clear the infection is more than a lung disease. Many patients are developing heart complications, though the reasons are not fully understood.
People with heart disease or a history of stroke are at increased risk of the coronavirus infection, and of suffering more severe symptoms, according to the American Heart Associat...
People with a history of certain cancers have more than double the risk for the heart rhythm disorder atrial fibrillation, a new study says.
A-fib is a common disorder that can lead to palpitations, dizziness and fatigue. Untreated, it can cause blood clots, stroke and heart failure, and people with a-fib have five times the risk of stroke than other people.
Fewer U.S. veterans are having leg amputations or dying due to serious blockages in leg arteries, a new study finds.
These blockages are called critical limb ischemia (CLI). They can cause severe leg pain, wounds that don't heal and poor quality of life, according to the study published recently in the journal Circulation: Cardiovascular Interventions.
Ambulances outfitted as "mobile stroke treatment units" provide faster treatment and reduce patients' risk of severe disability and death, German researchers report.
The new study examined the use of three mobile stroke units in Berlin. Each unit is staffed with emergency medicine neurologists and has a CT scanner and lab on board that enables treatment at the scene.
Gastrointestinal bleeding in patients taking blood thinners for an irregular heartbeat should prompt doctors to check for colon cancer, a new study advises.
Researchers looked at more than 125,000 patients in Denmark with the heart rhythm disorder atrial fibrillation (a-fib). They reported that those with gastrointestinal bleeding were 11 to 24 times more likely than others to be diag...
People with blood types A and B may have higher risks for developing dangerous blood clots compared to people who have type O blood. That's according to new research that also showed a slightly higher risk for certain types of heart disease among the A and B groups.
Past research has shown a likely link between heart disease and the ABO gene that exists in people with A, B or AB bloo...
Patients taking the blood thinner warfarin have been told that it should be taken at night, but a new study found the time of day doesn't matter.
"Whether warfarin is taken in the morning, or the evening, its therapeutic effect is the same," said lead researcher Dr. Scott Garrison, an associate professor of family medicine at the University of Alberta in Edmonton, Canada.
People with what's known as the "metabolic syndrome" are vulnerable to recurring blood clots, new research shows.
Metabolic syndrome is a collection of conditions, including obesity, high blood sugar, high cholesterol and high blood pressure. These factors put people at risk for diabetes, heart disease and a type of blood clot known as deep vein thrombosis (DVT), researchers say.
"Space medicine" took another small step forward after an astronaut who developed a blood clot in a neck vein was diagnosed and treated while onboard the International Space Station (ISS), physicians at NASA and elsewhere report.
The research team didn't reveal the astronaut's name, age or gender, but said the ISS crew member developed an asymptomatic thrombosis -- blood clot -- in th...
Black and Hispanic people having a stroke are less likely than their white counterparts to get treatments proven to reduce death and improve quality of life, new research shows.
For strokes caused by a clot, the gold standard treatment is a clot-busting drug called alteplase, according to guidelines from the American Heart Association and American Stroke Association. Some people migh...
Former pro football players typically have healthier hearts than the average Joe -- except when it comes to a type of heart rhythm disturbance, a new study suggests.
Researchers found that former NFL players had a nearly six times higher rate of atrial fibrillation (a-fib), versus other men their age. The condition was present in 5% of 460 former players, versus 0.5% of nonath...
A urinary tract infection might be more than just a painful nuisance for some, with new research suggesting it could raise the risk of stroke in vulnerable people.
The study of over 190,000 stroke patients found that the risk of suffering a stroke was heightened in the weeks and months following any infection that required a trip to the hospital. But urinary tract infections (UTIs) sh...
Could electrical stimulation of nerves that sit behind your nose help limit the harm done to your brain by a stroke?
New research suggests it's possible. In early experiments, blood flow to the brain was increased by widening undamaged arteries and bypassing the clot. This delivered oxygen-rich blood to threatened areas of the brain.
LDL cholesterol - the so-called "bad" cholesterol - is known to narrow arteries, which can lead to heart attacks and strokes. It's also now suspected of contributing to venous thromboembolism, new research suggests.
The preliminary study, presented Tuesday at the American Heart Association's Vascular Discovery Scientific Sessions, looked at genes and proteins that might influence ven...
Researchers say an experimental stroke drug prevented blood clots without the typical side effect of blood thinners: increased bleeding risk.
Bleeding is a common and potentially dangerous side effect of current anti-clotting drugs used to treat stroke patients. But the new findings suggest that the antiplatelet drug, called ACT017, may be a safe and effective alternative to current t...
Overweight children may be more likely than normal-weight children to develop life-threatening blood clots as adults, a new Danish study suggests. The good news is, getting to a healthy weight by age 13 eliminated the extra risk.
For the study, published Friday in the Journal of the American Heart Association, the research team used medical exam records to calculate the annua...
If you're obese and you want to do your heart a favor, try adding some olive oil to your diet.
So suggests new research, which found that healthy but severely obese patients who ate olive oil at least once a week had lower platelet activation. That means their blood showed less propensity toward forming clots -- which might help lower their risk of heart attack or stroke.
High testosterone levels can drastically increase a man's risk of heart failure and stroke-causing blood clots, a new study reports.
Men with a genetic predisposition to high testosterone levels have a nearly eightfold increased risk of heart failure and twice the risk of thromboembolism (blood clots that can block veins or arteries leading to the brain or lungs), researchers found.