Left bundle branch block (LBBB) is a type heart block. It results from a problem with the electrical conduction system that enables the heart to beat. It may cause no symptoms, but an ...

Please provide your email address to receive an email when new articles are posted on . Although typically a benign finding, right bundle branch block may be associated with increased risk for low ...

Dear Doctor 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. Your ...

First-degree heart block is the mildest type and often requires no treatment. Third-degree heart block is the most severe and ...