Wellens Syndrome is a clinical syndrome characterised by biphasic or deeply inverted T waves in V2-3, plus a history of recent chest pain now resolved. It is highly specific for critical stenosis of the left anterior descending artery (LAD)

There are two patterns of T-wave abnormality in Wellens syndrome:

  • Type A – Biphasic, with initial positivity and terminal negativity (25% of cases)
  • Type B – Deeply and symmetrically inverted (75% of cases)
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