arrhythmia definitions
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- Medical Dictionary. arrhythmia. play. noun ar·rhyth·mia \ā-ˈrith-mē-ə\. Medical Definition of arrhythmia. : an alteration in rhythm of the heartbeat either in time or force.
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- Atrial fibrillation (A-tre-al fi-bri-LA-shun), or AF, is the most common type of arrhythmia (ah-RITH-me-ah). An arrhythmia is a problem with the rate or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm.
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Arrhythmias Arrhythmias are deviations from the normal cadence of the heartbeat, which cause the heart to pump improperly. The normal heartbeat starts in the right atrium, where the heart's natural pacemaker (the sinus node) sends an electrical signal to the center of the heart to the atrioventricular node.rrhythmias occur when the heartbeat starts in a part of the heart other than the sinus node, an abnormal rate or rhythm develops in the sinus node, or a heart conduction block prevents the electrical signal from traveling down the normal pathway.
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Abnormal heart rhythms Abnormal heart rhythms. An abnormal heart rhythm – sometimes called an arrhythmia – means your heart is beating too fast, too slow, or with an irregular pattern. Your heart has an electrical system that tells it when to beat and push blood around the body. If there is a problem with this system you may experience an abnormal heart rhythm.
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Arrhythmia Heart - definition, symptoms and treatment Arrhythmias can result from numerous causes including electrical disturbances of the heart’s pacing mechanisms, physical damage to the HEART such as might occur with HEART ATTACK, interruptions of the heart’s BLOOD supply that cause myocardial HYPOXIA (oxygen depletion), severe electrolyte imbalances, and medication side effects.
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Heart arrhythmia Ventricular arrhythmias include ventricular fibrillation and ventricular tachycardia. Arrhythmias are due to problems with the electrical conduction system of the heart. Arrhythmias may occur in children; however, the normal range for the heart rate is different and depends on age.
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Arrhythmias An arrhythmia means the heart is not beating in the proper rhythm. This can cause anything from minor symptoms all the way to cardiac arrest and death. Since different rhythm disturbances need different treatments, diagnosing the precise type of arrhythmia is important.
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Arrhythmias A pacemaker is a small device that's placed under the skin of your chest or abdomen to help control abnormal heart rhythms. Pacemakers have sensors that detect the heart's electrical activity. When the device senses an abnormal heart rhythm, it sends electrical pulses to prompt the heart to beat at a normal rate. Some arrhythmias are treated with a jolt of electricity to the heart. This type of treatment is called cardioversion or defibrillation, depending on which type of arrhythmia is being treated.
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Dysrhythmia Dysrhythmia (dis-RITH-mee-a), or arrhythmia (a-RITH-mee-a), is a change in the regular beat of the heart. The heart may seem to skip a beat, beat irregularly, or beat very rapidly or very slowly.
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Atrial Flutter Atrial Flutter Overview. Atrial flutter is an abnormality of the heart rhythm, resulting in a rapid and sometimes irregular heartbeat. Such abnormalities, whether in the rate or regularity of the heartbeat, are known as arrhythmias. The beating of the heart is controlled by electrical impulses.
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Atrial Fibrillation and Flutter Definition. Atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles, or lower chambers of the heart. In atrial fibrillation, the atria quiver chaotically and the ventricles beat irregularly.
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Arrhythmias URL of this page: //medlineplus.gov/ency/article/001101.htm. An arrhythmia is a disorder of the heart rate (pulse) or heart rhythm. The heart can beat too fast (tachycardia), too slow (bradycardia), or irregularly. Normally, your heart works as a pump that brings blood to the lungs and the rest of the body.
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Overview Doctors classify arrhythmias not only by where they originate (atria or ventricles) but also by the speed of heart rate they cause: 1  Tachycardia (tak-ih-KAHR-dee-uh). This refers to a fast heartbeat — a resting heart rate greater than 100 beats a minute.  Bradycardia (brad-e-KAHR-dee-uh).
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Arrhythmia Arrhythmia is an electrical problem that disrupts the heart's natural rhythm. It manifests in two types Tachycardia (Fast heart beat-over 130 beats per minute)and Bradycardia (Slow heart beat-under 60 beats per minute).
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- Atrial fibrillation (A-tre-al fi-bri-LA-shun), or AF, is the most common type of arrhythmia (ah-RITH-me-ah). An arrhythmia is a problem with the rate or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm. AF occurs if rapid, disorganized electrical signals cause the heart's two upper chambers—called the atria (AY-tree-uh)—to fibrillate.
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Heart arrhythmia Cardiac arrhythmia, also known as cardiac dysrhythmia or irregular heartbeat, is a group of conditions in which the heartbeat is irregular, too fast, or too slow. A heart rate that is too fast – above 100 beats per minute in adults – is called tachycardia and a heart rate that is too slow – below 60 beats per minute – is called bradycardia. Many types of arrhythmia have no symptoms. When symptoms are present these may include palpitations or feeling a pause between heartbeats.
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- Heart arrhythmia simply means that the heart rhythm is irregular -- such as missing a heart beat or perhaps each beat does not follow the proper rhythm -- or it can also mean the rhythm is too fast or too slow. Natural or alternative cardiac arrhythmia treatment.
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- Noun. 1. tachycardia-abnormally rapid heartbeat (over 100 beats per minute). arrhythmia, cardiac arrhythmia-an abnormal rate of muscle contractions in the heart. Translations. [ˌtaekɪˈkɑːdɪə] ˌtækɪˈkɑːdɪə → n taquicardia. f
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Heart arrhythmia Cardiac arrhythmia, also known as cardiac dysrhythmia or irregular heartbeat, is a group of conditions in which the heartbeat is irregular, too fast, or too slow.
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Arrhythmias An arrhythmia (ah-RITH-me-ah) is a problem with the rate or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm. A heartbeat that is too fast is called tachycardia (TAK-ih-KAR-de-ah). A heartbeat that is too slow is called bradycardia (bray-de-KAR-de-ah). Most arrhythmias are harmless, but some can be serious or even life threatening. During an arrhythmia, the heart may not be able to pump enough blood to the body. Lack of blood flow can damage the brain, heart, and other organs.
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Categories of Arrhythmias Tachycardia. Tachycardia is a very fast heart rate of more than 100 beats per minute. The many forms of tachycardia depend on where the fast heart rate begins. If it begins in the ventricles, it is called ventricular tachycardia. If it begins above the ventricles, it is called supraventricular tachycardia. Ventricular Arrhythmias. Ventricular Tachycardia
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Heart arrhythmia 1 Atrial fibrillation. 2  Atrial fibrillation is a very common irregular heart rhythm that causes the atria, the upper chambers of the heart, to contract abnormally. 3  Atrial flutter. 4  This is an arrhythmia caused by one or more rapid circuits in the atrium.
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Arrhythmia A rapid heartbeat that originates in the ventricles. The rapid rhythm keeps the heart from adequately filling with blood, and less blood is able to pump through the body. V-tach can be serious, especially in people with heart disease, and may be associated with more symptoms than other types of arrhythmia.f you have symptoms of an arrhythmia, you should make an appointment with a cardiologist. You may want to see an electrophysiologist — a cardiologist who has additional specialized training in the diagnosis and treatment of heart rhythm disorders.
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Overview Heart arrhythmia. Overview. Heart rhythm problems (heart arrhythmias) occur when the electrical impulses that coordinate your heartbeats don't work properly, causing your heart to beat too fast, too slow or irregularly. Heart arrhythmias (uh-RITH-me-uhs) may feel like a fluttering or racing heart and may be harmless.
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- Arrhythmia is another term to describe an abnormal heart rhythm. This frightening heart abnormality can be caused by a number of conditions.
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About Arrhythmia This content was last reviewed on 10/23/2014. The term arrhythmia refers to any change from the normal sequence of electrical impulses. The electrical impulses may happen too fast, too slowly, or erratically – causing the heart to beat too fast, too slowly, or erratically. When the heart doesn't beat properly, it can't pump blood effectively.