Left posterior fascicular block

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His-Purkinje system and hemiblocks
  1. Usually means disease
  2. Right axis deviation (>110) w/QRS < 0.10s
  3. Tall R in II, III, AVF
  4. Exclude other causes (COPD, RVH, Lat MI)

See Also

Source

  • Adapted from Niemann, Lampe, Pani, Donaldson, ECGpedia.org
  • Journal of Electrocardiology. Vol 43 (2010). 40-42.