• heart condition that causes the heart to beat abnormally fast for periods of time
  • heart develops an extra, or “aberrant,” electrical pathway.


In infants, the symptoms may include:

  1. severe fatigue or lethargy
  2. a loss of appetite
  3. shortness of breath
  4. rapid, visible pulsations of the chest

In children, teenagers, and adults, the symptoms may include:

  1. heart palpitations
  2. a racing heart
  3. dizziness
  4. lightheadedness
  5. fainting
  6. shortness of breath or difficulty breathing
  7. anxiety
  8. panic
  9. sudden death (rarely)


  1. ventricles are activated too early (pre-excitation).
  2. Looped electrical impulses.
  3. Disorganized electrical impulses.
  4. extra electrical pathway can interfere with the normal heartbeat.

Risk factors

  • parents with WPW syndrome
  • Babies with other congenital heart defects

Diagnostic Tests

  • electrocardiogram (ECG)
  • Electrophysiological Testing
  • blood test
  • chest X-ray


  • surgery
  • medication
  • artificial pacemaker
  • Catheter Ablation
  • Electrical Cardioversion
  • Vagal maneuvers.


  • amiodarone
  • adenosine
  • anti-arrhythmic medication

Lifestyle Management

Avoiding the following can help you maintain a normal heartbeat:

  • pseudoephedrine, which is a nasal decongestant
  • caffeine
  • tobacco
  • alcohol