Аннотация
Research Materials: Bundle branch block is a conduction disorder within the heart characterized by a slowing or complete cessation of the conduction of excitatory impulses along one or more branches of the His bundle. . Blockage of bundle branches can be detected only during instrumental examination or is symptomatically manifested by rhythm disturbances, dizziness and attacks of loss of consciousness. Bundle branch block is diagnosed using electrocardiography. Treatment of bundled branch blocks is reduced to eliminating the causes of conduction disorders; In some cases, it may be necessary to install an artificial pacemaker.