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. 2018 Feb 17;18(1):1–10. doi: 10.1016/j.tjem.2018.01.008

Table 3.

ECG characteristics of right ventricular pacing.

Characteristics of RV-pacing:
  • -

    Length of QRS complex >120 ms

  • -

    A negative QRS complex in most of the leads, often only a positive complex in high lateral leads (I, aVL)

  • -

    QS pattern inferior (II, III, aVF), only a small R wave in leads V1-V2 and V5-V6

  • -
    ST segment and T wave discordant with QRS complex (same as LBBB)
    • o
      ST elevation and positive T wave with negative QRS complex inferior+precordial (II, III, aVF, V1-V6)
    • o
      ST depression and negative T wave with positive QRS complex in high lateral leads (I, aVL)