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Peri-infarction block, a marker for VT risk?

János Tomcsányi1, Béla Bózsik1, Hein Wellens2

  • 1Department of Cardiology, Buda Hospital of the Hospitaller Order of Saint John of God, Budapest, Hungary.

Journal of Electrocardiology
|August 20, 2020
PubMed

Insights

This study identifies an ECG finding, acceleration-dependent peri-infarction block, as a potential marker for predicting ventricular tachycardia (VT) risk after myocardial infarction. This could help assess patients prone to post-infarction VT.

Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • Monomorphic ventricular tachycardia (VT) is a serious complication following myocardial infarction (MI).
  • Assessing the risk of VT in post-MI patients remains crucial for preventative strategies.

Purpose of the Study:

  • To investigate the potential of an ECG finding, acceleration-dependent peri-infarction block, as a marker for post-infarction VT risk.
  • To re-evaluate a previously described but underutilized ECG entity.

Main Methods:

  • Case presentation of a patient with a history of MI and syncope.
  • ECG analysis revealing acceleration-dependent peri-infarction block.

Main Results:

  • The patient experienced monomorphic VT.
  • The ECG demonstrated an acceleration-dependent peri-infarction block in the inferior region.

Conclusions:

  • Acceleration-dependent peri-infarction block may serve as a valuable, albeit forgotten, ECG marker.
  • This ECG entity could aid in assessing the risk of ventricular tachycardia in patients post-myocardial infarction.

Keywords:
Peri-infarction blockReentryScarVentricular tachycardia

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