Related topics: heart · food and drug administration

3-D printed custom silicon heart valves

Scientists at ETH Zurich and the South African company Strait Access Technologies are using 3-D printing to produce custom-made artificial heart valves from silicone. This could help meet an aging population's growing demand ...

Hope for dogs with most common cardiorespiratory disease

Open-heart surgery to address the most common cardiorespiratory disease in dogs has been performed for the first time in Australia, at the University of Sydney's Veterinary Teaching Hospital. 

Your own virtual heart for non-invasive heart diagnostics

EPFL mathematician Alfio Quarteroni and his team are building a virtual heart model based on personalized medical images that may one day help cardiologists and cardiac surgeons non-invasively diagnose pathological heart ...

Engineering heart valves for the many

The human heart beats approximately 35 million times every year, effectively pumping blood into the circulation via four different heart valves. Unfortunately, in over four million people each year, these delicate tissues ...

Supercomputers listen to the heart

New supercomputer models have come closer than ever to capturing the behavior of normal human heart valves and their replacements, according to recent studies by groups including scientists at the Institute for Computational ...

Rare canine open-heart surgery succeeds

Last April, Dylan Raskin's Japanese Chin, Esme, was diagnosed with mitral valve regurgitation, a fatal condition that causes backflow of blood in the heart's chambers. Though veterinarians initially treated the condition ...

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Heart valve

In anatomy, the heart valves maintain the unidirectional flow of blood in the heart by opening and closing depending on the difference in pressure on each side. They are mechanically similar to reed valves.

There are four valves in the heart (not counting the valve of the coronary sinus, and the valve of the inferior vena cava):

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