Electrocardiographic Interpretation

  • Jan Adamec
  • Richard Adamec

Peculiarities and Limits of ECG Holter Interpretations

The ECG Holter is recorded with one, two, or now with three thoracic leads that are bipolar and can thus record the electric potential difference between the positive and the negative electrodes. We are not referring here to thoracic leads (V) of the clinical 12-lead electrocardiogram because those are unipolar and record the difference between the potential of the thoracic electrode and Wilson’s zero reference, despite many claims to the contrary by the producers of the different devices. Although some Holter leads may be similar to thoracic standard leads, especially to V5 or V1, they are not identical, and they do not allow us to determine the axis in the frontal plane. Consequently, none of the definitions based on the axis, as, for instance, the P sinus wave, are true in Holter recordings (see Sec. 4.2.1). This also explains why a bundle branchcannot be categorised and one may never know if one is in the presence of a right...


Atrial Fibrillation Ventricular Tachycardia Sinus Rhythm Atrial Flutter Supraventricular Tachycardia 
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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Jan Adamec
    • 1
  • Richard Adamec
    • 2
  1. 1.Cardiology Centre University Hospital Geneva and Clinique La PrairieMontreuxSwitzerland
  2. 2.Switzerland

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