A 76-year-old woman presents with a persistently rapid heart rate that she attributes to her pacemaker. What does the ECG show?

Wandering atrial pacemaker is similar to multifocal atrial tachycardia except the heart rate is normal ― that is, less than 100 beats per minute. Wandering atrial pacemaker occurs when multiple ...

According to statistics, 600,000 new pacemakers are implanted each year to save lives and help in increasing heart rate. A ...

This enables the ventricles to contract together. Sometimes, the rhythm of the heart's natural pacemaker process becomes disrupted - a person's heart beats abnormally. It can be abnormally slow or ...