EKG

Atrial Fibrillation EKG

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Atrial Fibrillation EKG, Electrocardiogram in Atrial Fibrillation

  • See Also
  1. Atrial Fibrillation
  2. Atrial Flutter
  3. Atrial Fibrillation Causes
  4. Atrial Fibrillation Acute Management
  5. Atrial Fibrillation Anticoagulation
  6. Electrical Synchronized Cardioversion of Atrial Fibrillation
  7. Synchronized Cardioversion
  8. Atrial Fibrillation Rate Control
  9. Atrial Fibrillation Rhythm Control (and Atrial Fibrillation Chemical Cardioversion)
  1. No history of AV nodal blocking drugs
  2. No discrete atrial activity
    1. Discrete P Waves absent
    2. Atrial Fibrillation waves (F Waves) seen
      1. Rapid oscillations or fibrillatory waves
      2. Small irregular waves at rate of 150-300 bpm
      3. Difficult to detect at high atrial rates (fine)
  3. Ventricular response
    1. Rapid rate up to 160-200 bpm
    2. Irregularly irregular rhythm
    3. Inconsistent R-R interval
  4. Variants
    1. Irregular Wide Complex Tachycardia
      1. Suggests Atrial Fibrillation with aberrant conduction (Ashman Phenomenon)
    2. Heart Rate faster than 200/min
      1. Accessory pathway (e.g. Atrial Fibrillation with Wolff-Parkinson-White or WPW)
  1. Acute coronary ischemia
    1. Left QRS Axis
    2. Left P Wave Axis
  2. Acute Pulmonary Disease
    1. Right QRS Axis
    2. Right P Wave Axis
  3. Mitral Stenosis
    1. Right QRS Axis
    2. Left P Wave Axis
  4. Lone Atrial Fibrillation
    1. Normal or Left QRS Axis
    2. Normal or Left P Wave Axis
  5. Thyrotoxicosis
    1. Normal QRS Axis
    2. Normal P Wave Axis
  6. Holiday Heart
    1. Normal QRS Axis
    2. Normal P Wave Axis
  7. Atrial Flutter
    1. Prominent saw tooth waves
    2. Atrial rate slower than Atrial Fibrillation
  • References
  1. Casaletto (2014) Crit Dec Emerg Med 28(4): 10-19
  2. Stiell (2011) Canadian J Cardiol 27(1): 38-46 [PubMed]
  3. Wann (2011) Circulation 123(1): 104-23 [PubMed]