Wolff-Parkinson-White syndrome WPW

• Facts:
  Transient arrhythmia via accessory pathway
  Commonly appears in early childhood
  
• History / PE:
  Dizziness, dyspnea after exertion
  Occasional palpitation
• Diagnosis:
  Look for delta wave
  Shortened PR interval
  Widening of QRS complex
• Treatment:
  Procainamide or quinidine
• Complications:
  Atrial fibrillation
• Notes:
  Treatment involves conversion back to sinus rhythm (eg. cardioversion or antiarrhythmic), as opposed to drugs that would serve to increase AV refraction (eg. CCB, β blockers, digoxin , adenosine) because they would increase conduction via accessory pathway
• Associated With:
  Atrioventricular reciprocating tachycardia