Beat goes on: new research has identified triplet beat patterns that arise when two pacemakers are present in heart tissue. (Courtesy: CC0 Pexels) A simple set of mathematical rules that accurately ...

Ectopic heartbeats are extra heartbeats that occur just before a regular beat. Ectopic beats are normal and usually not a cause for concern, though they can make people feel anxious. Ectopic beats are ...

SUDDEN death in persons with artificial pacemakers is a continuing and disturbing problem. Causes include pacemaker-catheter displacement, electric-component failure, broken wires and rising pacing ...

IMPLANTED cardiac pacemakers may become exhausted and no longer produce myocardial response. Pharmacologic means were used in this study to restore responsiveness to partially exhausted pacemakers in ...