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How do I take care of myself if I have a bundle branch block? Pulmonary function testing, to see how well your lungs are working.Nuclear cardiac stress test, to look for coronary artery (heart) disease.Cardiac catheterization, to look at the blood vessels in your heart.Blood test, to check cholesterol levels.

Blood pressure reading, to look for high blood pressure (hypertension) or low blood pressure (hypotension).

If your provider diagnoses you with BBB, they will check you for related health conditions.

They can also check for heart disease and other underlying conditions. Your provider can see the motion and rhythm of your heart as it beats. High-frequency sound waves create pictures of your heart’s chambers and valves.

Echocardiogram : During an echocardiogram (echo), your provider places a hand-held wand on your chest.

An EKG can also show which side of your heart has the bundle branch block. You lie still while a computer records a tracing of electrical impulses that travel through your heart.

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Electrocardiogram (EKG) : During an EKG, your provider attaches electrodes to the skin of your chest.Healthcare providers diagnose BBB with two main tests: Both right and left bundle branch block.You’re more likely to feel symptoms if you have: Feeling like you’ll faint (presyncope).īundle branch blockages on both sides may cause symptoms including:.When this condition does cause symptoms, they may include: What are the symptoms of bundle branch block?Ī bundle branch block may not cause any symptoms. It can happen in people whose hearts otherwise function normally and who have no underlying conditions. Sometimes, a bundle branch block has no known cause. Chronic obstructive pulmonary disease (COPD).Right bundle branch block may also result from lung diseases including: Weakened or stiffened heart muscle ( cardiomyopathy).Heart disease ( coronary artery disease).This can result in a slower heart rate and other serious health problems.Ĭonditions that can cause a bundle branch block include: Left and right bundle branch blocks: If you have blockages in both bundle branches, the electrical impulse from the upper to lower chambers of your heart will be completely blocked.A diagnosis of left bundle branch block often means that you have an underlying heart condition. This problem causes your right ventricle to contract before your left ventricle, making it harder for your heart to pump blood efficiently.

Left bundle branch block: If you have LBBB, the blockage is in the bundle branch that carries the electrical impulse to your left ventricle.This problem causes your left ventricle to contract before your right ventricle. Right bundle branch block: If you have RBBB, the blockage is in the bundle branch that carries the electrical impulse to your right ventricle.A block affects your body based on where it’s located: How does a bundle branch block affect my body?īundle branches form part of your heart conduction system, which controls your heartbeat. Around 33% of people with heart failure have LBBB. Left bundle branch block: LBBB affects about 0.06% to 0.1% of the U.S.RBBB affects about 0.8% of people at age 50 and up to 11.3% of people by age 80. Right bundle branch block: RBBB is more common than LBBB.The risk of both right bundle branch block and left bundle branch block increases with age and other health conditions, such as heart disease. Who might have a bundle branch block?Īnyone can have a bundle branch block. You can have a disruption in one bundle or in both your left bundle and your right bundle at the same time. Left bundle branch block (LBBB): LBBB occurs when a disruption happens along the pathway that sends electrical signals to your left ventricle.Right bundle branch block (RBBB) : RBBB occurs when a disruption happens along the pathway that sends electrical signals to your right ventricle.There are two types of bundle branch blocks: What are the types of bundle branch blocks? But they may treat the underlying health problems that cause the block. Healthcare providers don’t always treat bundle branch blocks. But a bundle branch block delays the electrical signal, therefore, the ventricle that receives the delayed signal will contract at a later time. Your heart’s two ventricles usually contract at the same time. These impulses normally travel through the bottom chambers of your heart (ventricles). Your heart’s tissue sends electrical impulses that travel through pathways called bundle branches. This block leads to an abnormal heart rhythm. What is a bundle branch block?Ī bundle branch block (BBB) is when something blocks or disrupts the electrical signal that causes your heart to beat. A bundle branch block disrupts the electrical signals, making your heartbeat irregular.