Bundle Branch Block

Bundle branch block causes 

There are a variety of factors that can cause BBB to show up in patients. In some rare cases, no specific cause can be identified. When a cause is identified, it is usually: 

• Coronary artery disease or heart attacks. 
• High blood pressure or other structural heart conditions. 
• Age-related changes or congenital defects in the heart's conduction system. 

Bundle branch block risk factors 

BBB is often present in people with a history of heart issues or it shows up in addition other conditions, including:

• Advancing age.
• Heart disease or hypertension.
• Diabetes or previous heart attacks.
• Congenital heart defects or prior heart surgery. 

Bundle branch block symptoms 

It’s important to note that BBB is often asymptomatic, meaning it doesn’t present with noticeable symptoms, and is only discovered through an ECG that’s being used to detect something else. When there are symptoms, they can include: 

• Dizziness
• Fainting 
• Chest pain
• Shortness of breath

In severe cases, arrhythmias or complications may develop. 

Bundle branch block diagnosis 

BBB is traditionally diagnosed with an electrocardiogram (ECG) to detect abnormalities in the heart's electrical signals. 

The ECG shows characteristic changes indicating a delay or blockage in the bundle branches. 

Additional testing may be needed if there are concerns about underlying heart disease. 

Bundle branch block treatment 

BBB usually doesn’t require treatment if it’s asymptomatic. If BBB is symptomatic, medications may be used to control heart rate or rhythm. 

In rare cases, a pacemaker may be required for severe conduction problems.

When to seek care 

• If you experience symptoms like dizziness, fainting or chest pain, you should make an appointment with your primary care physician or cardiologist. 
• If you have a history of heart disease and notice changes in your symptoms or heart rhythm. 
• For routine checks if you are diagnosed with Bundle Branch Block or have related risk factors.