Epsilon wave

The epsilon wave is found in about 50% of patients with ARVD. This is described as a terminal notch in the QRS complex. It is due to slowed intraventricular conduction. The epsilon wave may be seen on a surface EKG; however, it is more commonly seen on signal averaged EKGs.

The ECG below shows Epsilon wave (red triangle) seen in ARVD

The ECG below shows Epsilon wave.

Copyleft images obtained courtesy of ECGpedia, http://en.ecgpedia.org/index.php?title=Special:NewFiles&offset=&limit=500