cardiac arrhythmia

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Related to Cardiac dysrhythmias: arrhythmia, cardiac arrhythmia, ventricular arrhythmia

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, etc

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.

Cardiac arrhythmia

An irregular heart rate or rhythm.

cardiac arrhythmia

abnormal heart muscle contraction rates, e.g. atrial fibrillation and ventricular tachycardia

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.
References in periodicals archive ?
While we can find no evidence in the medical literature for the use of choline to address cardiac dysrhythmias, we can establish that the biochemical action of ACh exerts control over the cardiac rate and depolarization.
As scorpion venom induces autonomic nervous system instability, patients with serious envenoming should be closely monitored for the development of cardiac dysrhythmias, severe hypertension or hypotension.
Prior to the analysis, outcomes of interest were defined through ICD-9-CM codes for asthma (493), chronic obstructive pulmonary disease (COPD) (491-492), pneumonia and acute bronchitis (481, 482, 485, 486, and 466), upper respiratory tract infections (URIs) (465), heart failure (428), cardiac dysrhythmia (427), and myocardial infarction (410, 411.
Respiratory Acidosis - Clinical Manifestations > PaCo2; HC03 is normal or > with renal compensation vasodilatation cardiac dysrhythmias, tachycardia somnolence, decreased ventilation
A notice that was posted on the FDA's MedWatch site states that "extreme caution" should be used when desipramine is prescribed to those patients who have a family history of sudden death, cardiac dysrhythmias, and cardiac conduction disturbances.
Following the acute phase, the risk of cardiac dysrhythmias is attenuated; however, evidence of late asystole requiring transvenous ventricular pacing has been found [24].
Identify what effect, if any, the following factors have on the pulse oximetry reading: Falsely Factor No Effect Decrease Nail polish Dark skinned race Jaundice Anemia Bright overhead lights or sunshine Carbon monoxide poisoning Cardiac dysrhythmias Peripheral vasoconstriction Cold environment May not be Falsely able to pick Factor Increase up signal Nail polish Dark skinned race Jaundice Anemia Bright overhead lights or sunshine Carbon monoxide poisoning Cardiac dysrhythmias Peripheral vasoconstriction Cold environment Clinical Scenarios: 1.
His pediatrician performs a literature search and learns that phenylpropanolamine in elevated doses may cause cardiac dysrhythmias and dystonic reactions, in addition to the hypertensive crisis Christopher has suffered.
Not all cardiac dysrhythmias are dangerous and, therefore, antiarrhythmic treatment is not always necessary.
Cardiac dysrhythmias other than tachycardia are not common in hyponatremia.