Ashman Phenomenon

Ashman Phenomenon

Ashman Phenomenon is typically seen in

[A] RBBB
[B] Atrial fibrillation
[C] Ventricular tachycardia
[D] Idioventricular rhythm

Ashman Phenomenon

AF with RVR-Ashmans phenomenon-RBBB aberrancy

Jer5150, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

Long cycle followed by short cycle and short cycle terminated by aberrant QRS complex

ECG – Ashman-Phenomenon
Long cycle followed by short cycle and short cycle terminated by aberrant QRS complex

End of short cycle R wave is notched – RBBB morphology – called as Ashman Phenomenon

  • Ashman Phenomenon
  • Ashman phenomenon describes an aberrant ventricular conduction
  • Usually of RBBB morphology
  • Which follows a short R-R interval
  • Preceding relatively prolonged R-R interval
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