Treatment

Most people with bundle branch block don't have symptoms and don't need treatment. For example, left bundle branch block is not treated with medications. However, treatment depends on your specific symptoms and other heart conditions.

Medications

If you have a heart condition causing bundle branch block, treatment might involve medications to reduce high blood pressure or reduce symptoms of heart failure.

Surgeries and other procedures

If you have bundle branch block and a history of fainting, your doctor might recommend a pacemaker. A pacemaker is a compact device implanted under the skin of your upper chest with two wires that connect to the right side of your heart. The pacemaker releases electrical impulses when needed to keep your heart beating regularly

If you have bundle branch block with low heart-pumping function, you may need cardiac resynchronization therapy (biventricular pacing). This treatment is similar to having a pacemaker implanted. But you'll have a third wire connected to the left side of your heart so the device can keep both sides in proper rhythm. Cardiac resynchronization therapy is meant to improve the coordination of both lower chambers of the heart so that they contract at the same time.