Aberrated Beats

ECG Features

Figure 1: ECG Strip[1]

Aberration or aberrant conduction is conduction of the supraventricular impulse to the ventricles in a notably different manner from the usual conduction.[2] Aberration is seen as a bundle branch block pattern (wide QRS complex); aberration occurs as a right bundle branch block in 80% of the cases and can also be seen as a left bundle branch block in abnormal hearts.[2]

Clinical Significance

Classification of a wide QRS complex as aberrant conduction helps to rule out the diagnosis of premature ventricular contractions.[2]

ECM Features

Figure 2: ECM Analysis, Record 202[3][4]

ECM Example

1. Additional Example of an Aberrated Beat

Figure 3: Record 210[3][4]

2. Beginning of Atrial Fibrillation with Aberrated Beats

Figure 4: Record 201[3][4]

Figure 5: Record 202[3][4]

Additional Information

Diagnosis of Aberrated Beats on the ECG


  1. Alpaslan, M. (n.d.). ECG 1a. [Online image]. Retrieved July 19, 2016, from http://www.metealpaslan.com/ecg/aberasyonen.htm
  2. Alpaslan, M. (n.d.). Retrieved July 27, 2016, from http://www.metealpaslan.com/ecg/aberasyonen.htm
  3. MIT-BIH Arrhythmia Database. (1980). Retrieved June, 2016, from https://physionet.org/physiobank/database/mitdb/
  4. Goldberger AL, Amaral LAN, Glass L, Hausdorff JM, Ivanov PCh, Mark RG, Mietus JE, Moody GB, Peng C-K, Stanley HE. PhysioBank, PhysioToolkit, and PhysioNet: Components of a New Research Resource for Complex Physiologic Signals. Circulation101(23):e215-e220 [Circulation Electronic Pages;http://circ.ahajournals.org/cgi/content/full/101/23/e215]; 2000 (June 13).