In correspondence with each valve sinus, this ring has three loops through which guide threads are passed to aid prosthetic positioning. For the initial study, two valve sizes (21 and 23mm ...

DURING the course of investigations of the effect of age on acid mucopolysaccharide content of the human heart valves, we found hyaluronic acid to be a major component. In all it represented about ...

Sinusitis can cause facial pressure, sinus headache, and other symptoms. Treatment may depend on the cause. A sinus infection, also known as sinusitis or rhinosinusitis, occurs when your nasal ...

Heart disease is a term used to describe a constellation of conditions that can affect the heart and/or its valves, vessels, structure, electrical system, or coronary arteries. Though each disease ...

Emerson recently partnered with Laramie Energy to help the Colorado-based oil and gas producer comply with state and federal emissions regulations. Using ASCO zero-emissions electric dump valves, the ...

The conflict between Israel and the Palestinian people is one of the longest-running and most violent disputes in the world. Its origins go back more than a century. There have been a series of ...

The heart is a muscular organ roughly the size of your fist. As the heart muscle contracts, it propels the blood out into the vascular system. The heart’s chambers and valves are arranged to direct ...

It has not been possible to study this carefully, but our partial data show that relief is obtained in a few days and sometimes in a few hours. In a series of 52 cases of the carotid-sinus ...