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left posterior hemiblock (LPHB)

Special laboratory: - electrocardiogram a) normal QRS duration b) right axis deviation (>90 degrees) [2] c) small R & deep S in I & aVL d) qR pattern in leads III & aVF e) increased QRS voltage in limb leads

General

left bundle branch hemiblock

Figures/Diagrams

EKG: right bundle branch block, left posterior hemiblock

References

  1. Current Pocket Reference 1992 Pharmacopoeia & Medical Notes, Shepherd/Whalen, Specialty Cards, Norman OK 1997
  2. Medical Knowledge Self Assessment Program (MKSAP) 20 American College of Physicians, Philadelphia 2025