https://ecgvn.com/en/tags/arrhythmogenic-right-ventricular-dysplasia/ Recent content in Arrhythmogenic Right Ventricular Dysplasia on ECG Library – LITFL Basics Hugo en-us Wed, 16 Jul 2025 00:00:00 +0000 https://ecgvn.com/en/posts/epsilon-wave/ Wed, 16 Jul 2025 00:00:00 +0000 https://ecgvn.com/en/posts/epsilon-wave/ <h4 id="epsilon-wave-definition">Epsilon Wave Definition</h4> <ul> <li>Small deflection (“blip” or “wiggle”) buried in the end of the QRS complex</li> <li>On Standard 12-lead ECG (S-ECG), best seen in ST segment of V1 and V2, they are usually present in leads V1 through V4</li> <li>Caused by post-excitation of myocytes in the right ventricle</li> <li>Characteristic finding in patients with <a href="https://litfl.com/arrhythmogenic-right-ventricular-dysplasia-arvd/">arrhythmogenic right ventricular dysplasia</a> (ARVD)</li> </ul> <p><a href="https://litfl.com/wp-content/uploads/2018/08/Epsilon-Waves.jpg"><img alt="Epsilon Waves" loading="lazy" src="https://litfl.com/wp-content/uploads/2018/08/Epsilon-Waves.jpg"><img alt="Epsilon Waves" loading="lazy" src="https://litfl.com/wp-content/uploads/2018/08/Epsilon-Waves.jpg"></a></p> <p><strong>Epsilon wave</strong> in V1 due to RV conduction delay</p> <p>Epsilon waves are the most specific and characteristic finding in <a href="https://litfl.com/arrhythmogenic-right-ventricular-dysplasia-arvd/">arrhythmogenic right ventricular dysplasia</a> (ARVD). In ARVD, myocytes are replaced by fat, producing islands of viable myocytes in a sea of fat. This causes a delay in excitation of some of the myocytes of the right ventricle, producing a small “blip” seen during the ST segment of the ECG.</p>