|Heart failure is a condition in which the heart has lost the ability to pump enough blood to the body's tissues. With too little blood being delivered, the organs and other tissues do not receive enough oxygen and nutrients to function properly. |
In some cases, the heart can’t fill with enough blood. In other cases, the heart can’t pump blood to the rest of the body with enough force. Some people have both problems.
Heart failure is almost always a chronic, long-term condition, although it can sometimes develop suddenly. The condition may affect the right side, the left side, or both sides of the heart.
Heart failure can also occur when an illness or toxin weakens the heart muscle or changes the heart muscle structure. Such events are called cardiomyopathies. There are many different types of cardiomyopathy.
Other heart problems that may cause heart failure are :
|What are the symptoms ?|
|Heart failure can be chronic — meaning your condition is ongoing — or acute, meaning your condition has started suddenly. |
Chronic heart failure symptoms
|Acute heart failure symptoms |
|Surgery and medical devices |
|In some cases, doctors recommend surgery to treat the underlying problem that led to heart failure. Some treatments being studied and used in certain people include|
|Coronary bypass surgery|
|If severely blocked arteries are contributing to your heart failure, your doctor may recommend coronary artery bypass surgery. In this procedure, a vein from your leg, arm or chest replaces a blocked vein in your heart to allow blood to flow through your heart more freely.|
|Heart valve repair or replacement|
|If a faulty heart valve causes your heart failure, your doctor may recommend repairing or replacing the valve. The surgeon can modify the original valve (valvuloplasty) to eliminate backward blood flow. Surgeons also can repair the valve by reconnecting valve leaflets or by removing excess valve tissue so that the leaflets can close tightly. Sometimes repairing the valve includes tightening or replacing the ring around the valve (annuloplasty). Valve replacement is done when valve repair isn't possible. In valve replacement surgery, the damaged valve is replaced by an artificial (prosthetic) valve.|
|Implantable cardioverter-defibrillators (ICDs)|
|An ICD is a device implanted under the skin and attached through the veins in your chest to your heart with small wires. The ICD monitors the heart rhythm. If the heart starts beating at a dangerous rhythm, or if your heart stops, the ICD tries to shock it back into normal rhythm.|
|Cardiac resynchronization therapy (CRT) or biventricular pacing|
A biventricular pacemaker sends timed electrical impulses to both of the heart's lower chambers (the left and right ventricles), so that they pump in a more efficient, coordinated manner. As many as half the people with heart failure have problems with their heart's electrical system that cause their already-weak heart muscle to beat in an uncoordinated fashion. This inefficient muscle contraction may cause heart failure to worsen. Often a biventricular pacemaker is combined with an ICD for people with heart failure.
|Heart pumps (left ventricular assist devices, or LVADs)|
|These mechanical devices are implanted into the abdomen or chest and attached to a weakened heart to help it pump. Doctors first used heart pumps to help keep heart transplant candidates alive while they waited for a donor heart. |
LVADs are now sometimes used as an alternative to transplantation. Implanted heart pumps can significantly extend and improve the lives of some people with severe heart failure who aren't eligible for or able to undergo heart transplantation or are waiting for a new heart
|Some people have such severe heart failure that surgery or medications don't help. They may need to have their diseased heart replaced with a healthy donor heart. Heart transplants can dramatically improve the survival and quality of life of some people with severe heart failure. However, candidates for transplantation often have to wait months or years before a suitable donor heart is found. Some transplant candidates improve during this waiting period through drug treatment or device therapy and can be removed from the transplant waiting list.|
|The best way to prevent heart failure is to : |
Friday, April 1, 2011
How is Heart Failure defined ?
As been explained in the webpage of www.dilseindia.org, I found the article written by the said Author indeed very informative and I would like to share with all my friends ......
Posted by The Green Sanctuary at Friday, April 01, 2011