Left posterior hemiblock

from Wikipedia, the free encyclopedia
Classification according to ICD-10
I44.5 Left posterior fascicular block
  • Left posterior hemiblock
ICD-10 online (WHO version 2019)

A left posterior hemiblock ( abbreviation LPH ) is a disorder of the conduction of excitation in the heart . It occurs rarely and almost exclusively in people and animals with heart disease, but does not itself cause any symptoms. The diagnosis is made using an electrocardiogram (EKG). The cause is usually advanced coronary artery disease or cardiomyopathy .

The LPH is caused by a slowed or completely blocked transmission of the electrical impulses in the rear ( posterior ) part of the left Tawara thigh below the AV node and leads to a delayed excitation of the rear parts of the left ventricle .

For the combination of right bundle branch block and LPH, the terms “classic right bundle branch block” or “Bayley block” were often used, especially in the German-language literature of the 1960s.


  1. G. Csapo: Conventional and intracardiac electrocardiography . Werk-Verlag Dr. Edmund Banaschewski , 1982, p. 282.