Q: I recently had an electrocardiogram as part of a routine physical exam. The report said I had a bundle branch block. What does that mean? Will I need a pacemaker? A: Bundle branch blocks are ...

Atrial fibrillation with an uncontrolled ventricular response Intermittent right bundle branch block - rate dependent This ECG shows atrial fibrillation with an uncontrolled ventricular rate. There ...

This ECG is challenging to determine the etiology of the wide complex. There is a right bundle branch block pattern. Examining the Brugada criteria for ventricular tachycardia we see that there is no ...

The correct diagnosis is sinus rhythm, right bundle branch block (RBBB), left anterior fascicular block, and acute STEMI (Figure 2). The rhythm is regular with a rate of 90 beats/min, although there ...

A specialist tells how to interpret subtle changes on the ECG, including those caused by two life-threatening syndromes you might otherwise miss. Reading ECGs is like learning to appreciate art—it is ...

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, etc.

QUEBEC, QC — A new study shows that patients who harbor preexisting right bundle branch block (RBBB) face a significantly higher risk of death 2 years after transcatheter aortic-valve replacement ...

DEAR DR. DONOHUE You were asked about a right bundle branch block and you said "Electric current still makes its way to the right ventricle. This doesn't mean you are on the verge of dying." A few ...