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Arrhythmia
(redirected from atrial arrhythmia)

   Also found in: Dictionary/thesaurus, Encyclopedia, Hutchinson 0.38 sec.
arrhythmia /ar·rhyth·mia/ (ah-rith´me-ah) variation from the normal rhythm of the heartbeat, encompassing abnormalities of rate, regularity, site of impulse origin, and sequence of activation.arrhyth´mic
nonphasic arrhythmia  a form of sinus arrhythmia in which the irregularity is not linked to the phases of respiration.
sinus arrhythmia  the physiologic cyclic variation in heart rate related to vagal impulses to the sinoatrial node; it is common, particularly in children, and is not abnormal.

ar·rhyth·mi·a (-rm-)
n.
An irregularity in the force or rhythm of the heartbeat.

Arrhythmia
An abnormal rhythm or irregularity of the heartbeat. The heartbeat may either be too fast (tachycardia) or too slow (bradicardia). Arrhythmias may cause symptoms such as palpitation or light-headedness, but many have more serious consequences, including sudden death.

arrhythmia (rith´mē),
n a variation from the normal rhythm of the heart.

arrhythmia
variation from the normal rhythm, especially of the heartbeat. See also bradycardia, tachycardia.

atrial arrhythmia
see atrial flutter, atrial fibrillation.
bradycardic arrhythmia
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
see sinoatrial arrest, atrial tachycardia, supraventricular tachycardia, atrial fibrillation.
ventricular a's
see premature heartbeats, ventricular tachycardia, ventricular fibrillation.

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David Schwartzman, associate professor of medicine and director of the Atrial Arrhythmia Center at the University of Pittsburgh Medical Center, and principal investigator for the Concerto AT study.
In the instance of a cardiac event such as an atrial arrhythmia, the wireless system incorporated in the Cylos DR-T pacemaker will automatically and immediately transmit this record to the physician's office without requiring any patient involvement.
The availability of a cardiac resynchronization therapy defibrillator that can also diagnose and treat an atrial arrhythmia has enormous potential for millions of heart failure patients worldwide because it enables physicians to treat both the upper and lower chambers of the heart.
 
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