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cardiac arrhythmia |
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Cardiac arrhythmia An irregular heart rate or rhythm. Mentioned in: Holter Monitoring, Stress Test 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. arrhythmia 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 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
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For example, cardiac arrythmia problems are just beginning to surface. In its program to treat life-threatening cardiac arrythmia, Nortran has developed several drug candidates suitable for clinical testing as treatments for atrial arrhythmia. In addition, Prescott provides a history and overview of the company, its newly appointed management team, its revolutionary technology platforms and disposable catheters in the treatment of cardiac arrythmia disorders as well as insight into the evolving Electrophysiology sector, Cardiac Pathway's primary market and user base. |
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