Idioventricular Rhythm

Rate 20 to 40 beats per minute
P wave Absent
QRS Widened
Conduction Failure of primary pacemaker
Rhythm Regular


Absent P wave
Widened QRS > 0.12 sec.
Also called " dying heart" rhythm
Pacemaker will most likely be needed to re-establish a normal heart rate.


Treatment goals include measures to improve cardiac output and establish a normal rhythm and rate.

Options include:

Caution: Suppressing the ventricular rhythm is contraindicated because that rhythm protects the heart from complete standstill.