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What Is The Function Of Heart Valve
To direct flow: A heart valve functions to allow unidirectional blood flow. When chambers of the heart contract, one heart valve will open and one will close; this effectively allows only one low resistance pathway for the blood to follow. If there were no valves, blood would flow backwards from where it just came as well as forwards. This would significantly decrease the effectiveness of the heart as a pump. ...Read moreSee 1 more doctor answer
A valve is a structure that regulates the direction of flow. The heart is a special kind of pump. It moves blood by squeezing and relaxing. There are 4 chambers and each chamber has a valve. This keeps blood from moving backwards when the heart squeezes. When a chamber squeezes it lets the blood move forward but when the chamber is relaxed it prevents the blood from ...Read more
Leaflets, flow cont.: Heart valves are made of fibrous tissues that are supported in the case of tricuspid and mitral valves with muscles and apparatus that work as a unit. These generally work as check valves, allowing the flow of blood in one direction only and not backwards. ...Read moreSee 1 more doctor answer
My heart valve is replaced with mechanical. it can v calcium diposions after long time affects function. Alcohol consumption will clear this diposion?
Depends which valve: Repair most commonly is done on mitral valve, especially when mitral prolapse is present. The excess, "floppy" tissue causing the valve to prolapse is excised to make leaflets more taught. Sometimes an artificial ring is inserted around the base of the leaflets to cinch the whole apparatus together, if it has become dilated, preventing leaflets from closing up against each other. ...Read moreSee 1 more doctor answer
Two ways: In the past, this is done with open heart surgery and the old valve is cut out and a new one sewn in to replace it. A new technique for the aortic valve involves crushing the old valve by blowing up a balloon and then placing the new valve through an artery in the leg, just as is done with a coronary artery stent. The procedure has been used successfully in high risk patients for surgery. ...Read moreSee 1 more doctor answer
Depends: Artificial valves come in two general types - biological and mechanical. Biological valves are usually made from cow or pig tissue. Mechanical valves are made of graphite and metal. Patients on mechanical valves need to be on long term coumadin. Not all valves need to be replaced, some may be repaired. Good luck. ...Read moreSee 1 more doctor answer
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