2173 results found
Medical tests
… to make pictures of the brain and its inner fluid chambers (ventricles). Cerebrospinal fluid flows through these … the test. Pictures of the brain and inner fluid chambers (ventricles) can be seen on a video screen. How long the test … look normal. The size of the brain's inner fluid chambers (ventricles) is normal. Brain tissue looks normal. There are …
Health topics
… the result of ventricular tachycardia (a type of rapid heart rate) or other dangerous arrhythmias , which can be … arrhythmias and successfully restore a normal heartbeat. Because of the possible increased risk of sudden … cardiomyopathy. In DL Mann et al., eds., Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine , 10th …
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… mitral valve so that blood flows more easily through the heart. It's also called a balloon commissurotomy or … through an artery in the groin and threaded into the heart. When the tube reaches the narrowed mitral valve, a … the valve function normally to let blood flow through the heart. The improved blood flow relieves symptoms. Blood …
Medical tests
… checks for problems with the electrical activity of your heart. An EKG shows the heart's electrical activity as line tracings on paper. The … are called atria. The two lower chambers are called ventricles. A natural electrical system causes the heart …
Health topics
… mitral valve controls blood flow on the left side of your heart. The valve opens and closes with each heartbeat. It works like a one-way gate, letting blood flow from your upper heart chamber to your lower chamber. When you have mitral …
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… 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 … problems (arrhythmias) in one of the lower heart chambers (ventricles). If you are a woman who got dilated …
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… cardiomyopathy is a serious problem that makes your heart muscle stiff. When your heart muscle is stiff, it can't stretch to allow enough blood to enter its lower chambers, the ventricles . So blood that would normally enter the heart …
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… Basics What is cardiac arrest? In cardiac arrest, the heart suddenly stops beating. This causes blood to stop pumping to the body. If the heartbeat is not restarted within minutes, the person will … fib-ruh-LAY-shun"). The lower chambers of the heart (ventricles) quiver very fast and can't pump blood. But …
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… signals through a controlled path, or maze, to the lower heart chambers (ventricles). The maze procedure can be done in different … small cuts in the chest. Or it may be done during open-heart surgery. The maze procedure may be done if a person is …
Health topics
… device. It sends out mild electrical signals that keep your heart beating normally. The signals are painless. It can … and shortness of breath caused by a slow or unsteady heartbeat. A pacemaker is powered by batteries. Most … ) or the heart tissue that regulates the beating of the ventricles (AV node). Pacemakers can improve quality of …
