cardiac arrhythmia

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car·di·ac dys·rhyth·mi·a

any abnormality in the rate, regularity, or sequence of cardiac activation.
Farlex Partner Medical Dictionary © Farlex 2012

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, etc
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

car·di·ac dys·rhyth·mi·a

(kahr'dē-ak dis-ridh'mē-ă)
Any abnormality in the rate, regularity, or sequence of cardiac activation.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Cardiac arrhythmia

An irregular heart rate or rhythm.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Given that the ion channels are involved in stimulation and conduction in the heart, the researchers say that malfunction can cause cardiac arrythmias, which may lead to ventricular fibrillation.
Severe PHP resulting in hypercalcemic crises, seizures, and cardiac arrythmias are a risk to the expectant mother (17,18).
In elderly patients who have a reduced ability to maintain body temperature under stress, and in those with compromised cardiac function, this can cause cardiac stress, myocardial ischaemia and cardiac arrythmias (Heymann 1977, Evans et al 1991, Evans et al 1992, Evans et al 1994, Frank et al 1994).
(74.) Benjamin Natelson, "Cardiac Arrythmias and Sudden Death," in: Haynes and Gannon, pp.
Symptoms of low blood sodium (hyponatremia) include extreme debilitating fatigue, aching skeletal muscles, abnormally high blood pH, chronic low blood pressure, orthostatic tachycardia, cardiac arrythmias, and profuse sweating upon minimal exertion.
The Lifeguard PDS-25 defibrillator/scope was tile first portable, battery operated resuscitation instrument for detecting and treating cardiac arrythmias, or heart attacks: Developed by Smith Kline Instruments, the 11-kg instrument was synchronized to discharge at a specific time in the cardiac cycle.

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