A 78-year-old man with a history of heart failure presents for routine follow-up 1 week after insertion of a pacemaker. As part of the evaluation, a 12-lead ECG is obtained. The correct diagnosis is ...

The rhythm is regular at a rate of 120 beats/min. A pacemaker stimulus occurs before each QRS complex (→). This is ventricular pacing. Because the pacing rate is 120 beats/min, the mode of pacing must ...

Having an accelerated junctional rhythm occurs when the atrioventricular node in your heart beats too quickly. It happens as a result of damage to your heart’s primary natural pacemaker. There’s no ...

New research pinpoints how to spot which heart failure patients are most likely to benefit from getting a pacemaker. Previous research has shown that receiving a pacemaker can improve symptoms and ...

Boston Scientific announced multiple recalls but has said its battery issues were limited. One internal test in 2025 found batteries with an “extremely high failure rate.” Credit...Illustration by Mel ...

A pacemaker may be useful for atrial fibrillation (AFib) involving a slow heart rate or other heart conduction disorders. However, doctors may recommend lifestyle changes to manage AFib before a ...

The nitric oxide-independent soluble guanylate cyclase activator ataciguat continued to show promise for slowing the progression of fibrocalcific aortic valve stenosis in phase I and II studies.

ECG aberrancy means the heartbeat does not follow the usual conduction system of the heart. Atrial fibrillation with ECG aberrancy means people have an irregular heart rhythm with abnormal conduction.