Essentially it’s an ECG abnormality strongly associated with significant left anterior descending coronary artery stenosis.

There are 2 types of Wellens syndrome:

  • Symmetric deeply inverted T waves in V2 and V3
  • Biphasic T waves in V2 and V3 (less common)

    More detailed crieteria for the diagnosis of Wellens’ syndrome:

    • Either of the 2 T wave abnormalities described above.
    • History of chest pain.
    • Normal / minimally elevated cardiac enzymes.
    • No pathological Praecordial Q waves.
    • Minimal / no ST elevation.
    • No loss of praecordial R waves.

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