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Ventricular tachycardia unmasking anterior wall myocardial infarction in a patient with pre-existing left bundle branch block
  1. M P Ranjith,
  2. K F Rajesh,
  3. Kader Muneer,
  4. Vivek Pillai,
  5. C G Sajeev,
  6. M N Krishnan
  1. Department of Cardiology, Calicut Government Medical College, Kozhikode, Kerala, India
  1. Correspondence to Dr M P Ranjith, Bhavatharini, P O Pantheerankave, Kozhikode, Kerala 673019, India; drranjithmp{at}

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Left bundle branch block (LBBB) pattern in ECG usually masks the evidence of previous myocardial infarctions (MIs).1 Though several criteria are made to diagnose anterior wall myocardial infarction (AWMI) in patients with LBBB, these are not much helpful due to low sensitivity and specificity.2 In patients with previous MI, Q waves may disappear during ventricular tachycardia (VT) as the QRS morphology changes during this arrhythmia. Here we are discussing a patient who had previous AWMI, who presented with VT. His ECG showed reappearance of Q …

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  • Contributors All the authors have actively contributed in the article writing and submitting to journal.

  • Competing interests None.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; internally peer reviewed.