Ashman phenomenon

Ashman phenomenon
Other namesAshman beats
Atrial fibrillation with rapid ventricular response; Ashman's phenomenon with RBBB aberrancy (13th beat)
Named afterRichard Ashman

Ashman phenomenon, also known as Ashman beats, describes a particular type of wide QRS complex that is typically, but not always seen in atrial fibrillation. It is a type of cardiac aberrancy and it is more often misinterpreted as a premature ventricular complex.

It is named for Richard Ashman (of New Orleans) (1890 –1969), after first being described by Gouaux and Ashman in 1947.

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