Left bundle branch block (LBBB) is a heart condition where the electrical signal that controls the heartbeat is delayed or blocked as it passes through the left side of the heart. This delay can lead to an abnormal heart rhythm and is often associated with underlying heart conditions.
Here’s a more detailed explanation:
What it is:
LBBB occurs when the electrical impulse that normally travels quickly through the heart’s conduction system gets slowed down or blocked as it passes through the left bundle branch.
Why it happens:
LBBB can be caused by various factors, including heart disease, high blood pressure, heart valve problems, and even certain medications.
Symptoms:
LBBB may not cause noticeable symptoms in some individuals. However, it can also cause:
Fainting or feeling like you’re about to faint.
Slow heart rate.
Diagnosis:
LBBB is usually diagnosed through an electrocardiogram (ECG), which measures the electrical activity of the heart.
Treatment:
Treatment for LBBB primarily focuses on managing any underlying heart conditions and may include medications or a pacemaker in some cases.
Prognosis:
The prognosis for LBBB can vary depending on the underlying cause. Some individuals with LBBB may live a long and healthy life without significant complications. However, others may experience worsening heart function or other complications.