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 ...

We were unable to process your request. Please try again later. If you continue to have this issue please contact [email protected]. A 68-year-old male with morbid obesity and no past ...

The cardiac pacemaker harmlessly dissolves over the course of 35 days. (Courtesy: Northwestern University) Temporary cardiac pacemakers provide essential pacing for patients with short-term heart ...

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 ...

You must have heard of pacemakers? They are required when the heart's natural system malfunctions, causing it to beat too ...

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 ...