Coronary Artery Disease - Cause
Coronary artery disease is caused by the buildup of plaque on the inside of your coronary arteries. In most people, plaque buildup begins early in life and gradually develops over a lifetime.2Coronary artery disease (CAD) typically begins when the inside walls of the coronary arteries are damaged, due to one or more underlying conditions, such as high cholesterol, high blood pressure, diabetes, ..
Mitral Valve Regurgitation - Cause
There are two forms of mitral valve regurgitation (MR): chronic and acute. Chronic mitral valve regurgitation develops slowly over several years. Acute MR develops suddenly.Chronic mitral valve regurgitation The most common cause of chronic mitral valve regurgitation is mitral valve disease that damages the mitral valve flaps over time. The flaps then allow blood to leak backward (regurgitate) ...
Procedures That May Require Antibiotics to Prevent Endocarditis - Topic Overview
The American Heart Association recommends preventive (prophylactic) antibiotics for some people who are at increased risk for developing endocarditis. 1 These people should have preventive antibiotics before they have certain procedures that may release bacteria into the bloodstream. If you are at increased risk for endocarditis,talk with your doctor or your dentist about the need for ...
Mitral Valve Regurgitation: Severity - Topic Overview
A crucial step in the diagnostic process is determining how serious your case of mitral valve regurgitation (MR) is, because treatment depends largely on severity. At a minimum, your doctor will use an echocardiogram to gauge the condition of your mitral valve. And depending on your situation, your doctor may need more information and extra diagnostic tests.To find out the severity of your MR, your doctor will look for:The size of the left ventricle at the end of the contraction (end systolic dimension, or ESD). In chronic MR, the left ventricle expands in size as it tries to accommodate the larger volumes of blood flowing into the chamber. The larger the left ventricle, the more advanced the MR. This applies only to the chronic form of the disease, since the left ventricle does not expand in acute MR. The ejection fraction. This number shows the efficiency of your heart. The ejection fraction is the amount of blood pumped out of the ventricle (stroke volume) divided by the total
Mitral Valve Regurgitation - Exams and Tests
Chronic mitral valve regurgitation (MR) can be difficult to diagnose. It is a "quiet" condition and often has no symptoms, or your symptoms may be confused with other heart - related conditions.Chronic MR is often diagnosed during a routine checkup or a visit to the doctor for another condition. A heart murmur may be the first sign leading your doctor to the diagnosis, especially if you have no ..
Dilated Cardiomyopathy - Topic Overview
What is dilated cardiomyopathy? Dilated cardiomyopathy is a serious condition that weakens your heart muscle and causes it to stretch,or dilate. When your heart muscle is weak,it can't pump out blood as well as it should,so more blood stays in your heart after each heartbeat. As more blood fills and stays in the heart,the heart muscle stretches even more and gets even weaker. Most of the ...
Pacemaker for Heart Failure (Cardiac Resynchronization Therapy)
Cardiac resynchronization therapy (CRT) uses a special type of pacemaker called a biventricular pacemaker (say by-ven-TRICK-yuh-ler) to treat heart failure. This pacemaker sends electrical pulses to make the ventricles pump at the same time. A biventricular pacemaker is implanted in the chest, and it connects to three thin wires, called leads. The leads go into different chambers of your heart. If there is a problem with your heartbeat, the pacemaker sends a painless signal through the leads to fix the problem. The pacemaker also can speed up your heart if it is beating too slowly. In some cases, you may get a pacemaker that is combined with a device to shock your heartbeat back to a normal rhythm if it is dangerously fast. The device is called an implantable cardioverter-defibrillator, or ICD. It can prevent sudden death. Your doctor will put the pacemaker in your chest during minor surgery. You will not have open-chest surgery.Your doctor makes a small cut (incision) in your chest.
A heart transplant is a procedure in which a surgeon removes a diseased heart and replaces it with a donor heart.
Cardiac Rehabilitation: Weight and Resistance Training - Topic Overview
Resistance training with weights,elastic bands,or your own body weight may help you regain the physical strength and confidence to do the daily tasks you performed before your heart problem or surgery. Resistance training can help you get the most benefit from your cardiac rehab program. Talk with your doctor before you start a resistance-training program. Your doctor can help make sure your ...
Cardiac Perfusion Scan
A cardiac perfusion scan measures the amount of blood in your heart muscle at rest and during exercise. It is often done to find out what may be causing chest pain.