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Qu'est-ce (qui) est bundle branch heart block - définition
DEFECT OF THE BUNDLE BRANCHES OR FASCICLES IN THE ELECTRICAL CONDUCTION SYSTEM OF THE HEART
Bundle-branch block
![Image showing the ECG characteristics of a [[right bundle branch block]] and a [[left bundle branch block]]. In both cases, the late portion of the widened [[QRS complex]] arises from an anomalously conducted depolarization impulse. The direction of this delayed depolarization vector differs based on the structure that is blocked; the impulse travels ''anterior'' toward the [[right ventricle]] in RBBB and ''lateral'' toward the [[left ventricle]] in LBBB.](https://commons.wikimedia.org/wiki/Special:FilePath/Left and right bundle branch block.png?width=200 "Image showing the ECG characteristics of a [[right bundle branch block]] and a [[left bundle branch block]]. In both cases, the late portion of the widened [[QRS complex]] arises from an anomalously conducted depolarization impulse. The direction of this delayed depolarization vector differs based on the structure that is blocked; the impulse travels ''anterior'' toward the [[right ventricle]] in RBBB and ''lateral'' toward the [[left ventricle]] in LBBB.")
Right bundle branch block
 of the human heart.svg?width=200)
HEART BLOCK IN THE ELECTRICAL CONDUCTION SYSTEM
RBBB; Right bundle-branch block; IRBBB
A right bundle branch block (RBBB) is a heart block in the right bundle branch of the electrical conduction system.
Left bundle branch block
CARDIAC CONDUCTION ABNORMALITY SEEN ON THE ELECTROCARDIOGRAM
LBBB; Left bundle-branch block; Left bundle branch blockage
Left bundle branch block (LBBB) is a conduction abnormality in the heart that can be seen on an electrocardiogram (ECG). In this condition, activation of the left ventricle of the heart is delayed, which causes the left ventricle to contract later than the right ventricle.
Bundle branches
OFFSHOOTS OF THE BUNDLE OF HIS IN THE HEART'S VENTRICLE
Bundle branch; Right bundle branch; Left anterior fascicle; Left posterior fascicle; Left bundle branch
The bundle branches, or Tawara branches, are offshoots of the bundle of His in the heart's ventricle. They play an integral role in the electrical conduction system of the heart by transmitting cardiac action potentials from the bundle of His to the Purkinje fibers.
Wikipédia
Bundle branch block
A bundle branch block is a defect in one of the bundle branches in the electrical conduction system of the heart.
