Q&A: Mechanical or tissue heart valve replacements

My father is having issues with his aortic valve. He is 53 years old and was told he needs to have a valve replacement. I was reading that there are different types of valves. Can you explain the differences and what option ...


Heart disease is in the eye of the beholder

In a new study from Shiley Eye Institute at UC San Diego Health, researchers have identified a potential new marker that shows cardiovascular disease may be present in a patient using an optical coherence tomography (OCT) ...


Biomedical device can prevent deaths caused by blood clots

New portable technology that visualizes clots forming in flowing blood in a 3-D holographic livestream promises to dramatically improve screening and treatment of stroke, heart attack and coronavirus-induced lung failure.


Light and genetic probes untangle dynamics of brain blood flow

While the human brain has over 400 miles of total vasculature, little is known about the tiny capillaries that make up much of this intricate labyrinth of blood vessels critical for delivering oxygenated blood and nutrients ...

Sports medicine & Kinesiology

Doctor explains why—and how—runners should warm up

Many runners know that they should stretch, but that doesn't mean they do. And even if they take the time to loosen up their muscles, they may not be doing the right stretches—or performing them properly.


Cocoa flavanols may boost memory in older people

A clinical trial has shown that in older people, a diet supplemented with cocoa flavanols– naturally occurring compounds found in cocoa beans—may improve performance on a specific memory task. The study is published on ...


Cancer patients not receiving life-saving heart attack treatment

Emergency heart attack treatment is effective in patients with cancer, yet many do not receive it. That's the finding of a study published on World Cancer Day in European Heart Journal—Acute Cardiovascular Care, a journal ...

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Blood flow

Blood flow is the flow of blood in the cardiovascular system.

It can be calculated by dividing the vascular resistance into the pressure gradient.

This text uses material from Wikipedia, licensed under CC BY-SA