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Heart Rhythm Disorders (cont.)

Heart Rhythm Disorders Causes

Among individuals without known heart disease, arrhythmias are generally random, isolated occurrences that do not carry any significance. However, an evaluation by a physician is advised if a person notices any unusual or abnormal heart beats, especially if they reoccur or are sustained.

A variety of heart diseases cause arrhythmias. Heart disease can refer to patients with coronary artery disease, heart valve problems, heart failure, or disorders with heart conduction, or high blood pressure. Remember, however, that having an arrhythmia does not necessarily mean that a person has heart disease. Arrhythmias have many causes; sometimes the cause of an arrhythmia is never determined, other times the cause may be easy to determine and treat.

Sometimes, conditions other than heart disease may cause or aggravate arrhythmias. These conditions include the following:

  • Infection or fever
  • Physical or emotional stress
  • Diseases such as anemia or thyroid disease
  • Drugs and other stimulants, such as caffeine, tobacco, alcohol, cocaine, amphetamines, and certain over-the-counter and prescription medications, including medicine used to treat arrhythmias
  • Certain arrhythmias can be genetically determined such as Wolff-Parkinson-White (WPW) syndrome.

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Read What Your Physician is Reading on Medscape

Accelerated Idioventricular Heart Rhythm »

Accelerated idioventricular rhythm (AIVR) is a form of ectopic or automatic ventricular arrhythmia usually noted in the acute care setting during cardiac rhythm monitoring.

Read More on Medscape Reference »


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