cardiac arrhythmia
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car·di·ac dys·rhyth·mi·a
any abnormality in the rate, regularity, or sequence of cardiac activation.
cardiac arrhythmia
Etymology: Gk, kardia + a + rhythmos, without rhythm
an abnormal cardiac rate or rhythm. The condition is caused by a failure of the sinus node to maintain its pacemaker function or by a defect in the electrical conduction system. Examples of arrhythmia include bradycardia, ectopic beat, heart block, and tachycardia.
cardiac arrhythmia
Cardiology Any defect in the heart's electrical activity, which may be detectable only by EKG, or manifest as an abnormality in rate, rhythm, or sequence of cardiac events Clinical From asymptomatic to palpitations, syncope, etccar·di·ac dys·rhyth·mi·a
(kahr'dē-ak dis-ridh'mē-ă)Any abnormality in the rate, regularity, or sequence of cardiac activation.
Cardiac arrhythmia
An irregular heart rate or rhythm.
Mentioned in: Holter Monitoring, Stress Test
cardiac arrhythmia
abnormal heart muscle contraction rates, e.g. atrial fibrillation and ventricular tachycardiaarrhythmia
variation from the normal rhythm, especially of the heartbeat. See also bradycardia, tachycardia.
atrial arrhythmia
see atrial flutter, atrial fibrillation.
bradycardic arrhythmia
see bradyarrhythmia.
benign arrhythmia
one which is clinically insignificant.
cardiac arrhythmia
irregularity of the normal heart rhythm, either in frequency or amplitude, or almost always both.
exercise-induced arrhythmia
a cause of poor racing performance or sudden death while racing; detectable only by telemetered electrocardiography.
sinus arrhythmia
the physiological cyclic variation in heart rate related to vagal impulses to the sinoatrial node.
supraventricular a's
ventricular a's