Left bundle branch block (LBBB) may indicate an underlying heart condition, such as a thickened heart from high blood pressure, coronary artery disease, or some other heart problem.

Electrocardiographic (ECG) left bundle branch block (LBBB) is associated with left ventricular hypertrophy (LVH). 1 Several studies have shown associations between LBBB and left ventricle systolic ...

Dear Dr. K: I recently had an ECG that showed that I have a “left bundle branch block.” What does this mean? Dear Reader: When your heart beats, it does so in response to electrical signals ...

When a left bundle branch block appears on an ECG, the next step is usually an echocardiogram. This noninvasive imaging test shows whether the heart structure looks normal.

This ECG has a narrow QRS complex initally, then a fast heart rate, regular rhythm and no identifiable P wave activity which suddenly turns to a wide complex in a left bundle branch block pattern.

However, unlike in the presence of a left bundle branch block, myocardial ischemia and infarction can easily be detected on ECG when a RBBB is present (see anterior and inferior wall MI examples).

DEAR DR. ROACH: I am a 63-year-old male who, during a routine EKG, showed a left bundle branch block. Can you tell me anything about this diagnosis, what it means, any treatment, future concerns ...

Those who have left bundle branch block can also experience symptoms such as pre faint condition in which people feel like fainting but they actually don’t.

Q-I`m a 27-year-old female in good health. However a recent EKG turned up a ”bundle branch blockage.” The doctor says it is an interruption in the heart`s electromagnetic field. What el… ...

No new left bundle branch block occurred after hospital discharge. In multivariate analysis, predictors of persistent left bundle branch block were greater ventricular depth of valve implantation and ...

Q. Please explain a bundle-branch block on the left side of my heart. Cause? Cure? Complications? After viewing my EKG, my anesthesiologist referred to the condition as a heart abnormality and sugg… ...