DefinitionBy Mayo Clinic Staff
Bundle branch block is a condition in which there's a delay or obstruction along the pathway that electrical impulses travel to make your heart beat. The delay or blockage may occur on the pathway that sends electrical impulses to the left or the right side of the bottom chambers (ventricles) of your heart.
Bundle branch block sometimes makes it harder for your heart to pump blood efficiently through your circulatory system.
There's no specific treatment for bundle branch block itself. However, any underlying health condition that caused bundle branch block, such as heart disease, will need to be treated.
April 10, 2015
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