Arrhythmia

Arrhythmias are deviations from the normal cadence of the heartbeat, which cause the heart to pump improperly.
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Arrhythmia
Related Category: Pathology
(rth´m), disturbance in the rate or rhythm of the heartbeat.
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Arrhythmias, atrial: Abnormal heart rhythm due to electrical disturbances in the atria (the upper chambers of the heart) or the AV node "relay station", leading to fast heart beats.
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Arrhythmias are caused by a disruption of the normal electrical conduction system of the heart. Normally, the 4 chambers of the heart (2 atria and 2 ventricles) contract in a very specific, coordinated manner.
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Arrhythmias can cause problems with contractions of the heart chambers by: ...
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Arrhythmias may cause you to feel premature beats, or you may feel that your heart is racing or beating too slowly. Other signs and symptoms may be related to diminished blood output from your heart.
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Arrhythmias can be divided into 2 main groups: tachycardias and bradycardias. Tachycardias cause a rapid heartbeat, with over 100 beats per minute. Bradycardias cause a slow heartbeat, with less than 60 beats per minute.
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Arrhythmias can also be caused by some substances or drugs. These include beta blockers, psychotropics, sympathomimetics, caffeine, amphetamines, and cocaine.
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Cardiac arrhythmias sometimes are classified according to their origin as either ventricular arrhythmias (originating in the ventricles) or supraventricular arrhythmias (originating in heart areas above the ventricles, typically the atria).
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Some of the most dangerous arrhythmias are those that affect the ventricles - the large muscular chambers of the heart. Ventricular arrhythmias can cause sudden death in someone who appeared previously fit and well.
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Arrhythmias, such as atrial fibrillation. When pericarditis accompanies myocarditis, other arrhythmias may be present, such as supraventricular tachycardia (SVT) or complete heart block.
Cardiac tamponade ...
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Arrhythmias from heart inflammation (myocarditis)
Heart failure
Encephalitis
Pneumonia ...
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Arrhythmia or dysrhythmiaAbnormal rhythm in hearts that contract in an irregular way.
ECG or EKGA record of the waves that relates to the electrical impulses produced at each beat of the heart.
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Arrhythmia, lack of rhythm, occurs when the heart's electrical system malfunctions. Valvular heart disease occurs when one or more of the heart's valves narrows or fails to close properly. Various diseases can rob the heart of its muscle.
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ARRHYTHMIA: A change in the heartbeat's rhythm.
ARTHRALGIA: Pain in a joint, not inflammatory in character.
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Arrhythmia Mapping System Hardware and software system indicated as a diagnostic aid in identifying the source of cardiac tachyarrhythmias (rapid heart beats).
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1 - Arrhythmia. The heart does not beat right. The natural rhythms are more irregular. This is caused by problems in the cells in the heart which send out electrical signals to do the pumping sequences.
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parapsoriasis varioliformis; parapsychology; parapterum; paraquat; paraquat lung; paraquito; pararama; pararectal; pararectal fossa; pararectal lymph nodes; pararectal pouch; parareflexia; pararenal; pararhotacism; pararosanilin; pararrhythmia; ...
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There are many different kinds of irregular heartbeats (arrhythmias). A heart rate less than 60 beats per minutes is called a bradycardia. A heart rate greater than 100 beats per minutes is called a tachycardia.
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Another controversy related to methadone concerns possible prolongation of QTc interval, leading to torsades de pointes and ventricular arrhythmia.
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Cardiac arrhythmia
- atrial fibrillation *
- electrical cardioversion *
- pacemaker implantation *
- palpitations *
- tachycardia
Cardiac catheterization
- illustration of catheter in heart *
- text *
Cardiopulmonary resuscitation (CPR) ...
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This test is often performed in those where a life-threatening cardiac arrhythmia is a problem. The location and characteristics of an arrhythmia can be determined, thus guiding medical management of the problem.
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Those who were put on fish oil, or omega-3 supplements from fish oil, had a dramatic drop in arrhythmias, sudden death from arrhythmias, and repeat heart attack.
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Persistent: Atrial fibrillation occurs in episodes, but the arrhythmia does not convert back to sinus rhythm spontaneously; it may last days to weeks, even a couple of months. Medical or electrical treatment may be needed to end the episode.
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In some patients with palpitations, no heart disease or abnormal heart rhythms can be found. In others, palpitations result from abnormal heart rhythms (arrhythmias).
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This is a heart medicine used to treat arrhythmias. This article profiles how it works and when it is recommended.
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A substance that is used to relieve pain by blocking signals at the nerve endings in skin. It can also be given intravenously to stop heart arrhythmias. It belongs to the families of drugs called local anesthetics and antiarrhythmics.
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The level drops if the kidneys excrete potassium into urine instead of returning it to the blood supply. Since potassium helps regulate nerve and muscle health and heart rate, low levels can cause extreme weakness, cardiac arrhythmias, paralysis, ...
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Arrhythmia An irregular heartbeat. Aspiration The process of removing fluid or tissue, or both, from a specific area. Autoimmunity A condition in which the body's immune system mistakenly fights and rejects the body's own tissues. Axilla The armpit.
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