In and of themselves, bundle branch blocks do not require treatment. If there is no underlying heart disease, the condition only needs to be monitored. When an underlying condition is present, treatment centers on managing it. For example, if a bundle branch block develops after a heart attack, a pacemaker might be needed depending on how much damage the heart sustained. If an infection of the heart muscle is to blame, antibiotics can clear up the infection, and the doctor will continue to monitor the patient closely.

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