Tag Archives: arteries

Filters Do Not Lower Mortality Rate in Most Embolism Cases

EAST LANSING, Mich. — A filter used to block clots from passing from the veins in the legs to the arteries of the lung does not improve mortality rates for most patients suffering a pulmonary embolism. However, if a patient is unstable – in shock or requires a ventilator – filters can save lives.

Furthermore, for unstable patients with a pulmonary embolism, it is crucial they receive clot-dissolving medications known as thrombolytic therapy.

The findings come from a set of three research articles on pulmonary embolism treatment published by Michigan State University’s Paul Stein in the May edition of the American Journal of Medicine. The findings are based on a study of more than two million patients suffering from the sometimes deadly clots that travel to the lungs and block arteries. (more…)

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Blood Discovery

UD researchers discover that JAM-A protein keeps blood clots in check

Cut your toe, and platelets — those disc-shaped cells circulating in your blood — rush to the scene, clumping together to plug the leak.

But when an unwanted clot forms in an artery, and an overaccumulation of platelets blocks blood flow, a heart attack or stroke occurs, too often with fatal results.

Heart disease and stroke rank as humankind’s top killers, according to the World Health Organization. Ulhas Naik, director of the Delaware Cardiovascular Research Center at the University of Delaware, hopes to help change that grim statistic for the better. (more…)

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Ferroelectric Switching Discovered For First Time in Soft Biological Tissue

The heart’s inner workings are mysterious, perhaps even more so with a new finding. Engineers at the University of Washington have discovered an electrical property in arteries not seen before in mammalian tissues.

The researchers found that the wall of the aorta, the largest blood vessel carrying blood from the heart, exhibits ferroelectricity, a response to an electric field known to exist in inorganic and synthetic materials. The findings are being published in an upcoming issue of the journal Physical Review Letters. (more…)

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