Heart rhythm problems (arrhythmias)

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Learn about heart rhythm problems. Usually identified as an irregular heartbeat, they can occur at any age and may or may not have symptoms.

Key points

  • An arrhythmia is a fast, slow, or irregular heartbeat.
  • Arrhythmias may be short-lived, or they may last for a long time and need treatment.
  • Your child may not notice any symptoms of an arrhythmia.
  • Arrhythmias are identified through electrocardiograms, which measure the heart's electrical activity.
  • Treatment depends on what is causing the arrhythmia.
Last updated: March 19th 2010