Ventricular paced rhythm was detected on 12-lead ECG. The widespread opinion that this constellation does not permit a diagnosis of ischemia on 12-lead ECG is not accurate, as this example shows.

A pacemaker may be needed to relieve symptoms when no reversible cause — i.e. AV blocking medications or electrolyte disturbances — is found. The strip below shows a junctional rhythm with ...

The new pacemakers use lightweight silicon membranes to adhere to the heart’s exterior and implantable optical fibers to regulate the heart rhythm ... MD, a cardiac electrophysiologist at ...