Correspondence to Dr Alessandro Biffi, Med-Ex, Medicine & Exercise, Medical Partner Scuderia Ferrari, Rome, Italy; a.biffi{at}libero.it Long-term physical activity induces structural, functional and ...

The regular arrhythmia occurring at the beginning of the electrocardiogram was identified as ventricular bigeminy. Single ventricular premature complexes (VPCs), as well as pairs and triplets of VPCs, ...

An electrocardiogram (Fig. 1) of the Case Records of the Massachusetts General Hospital (in the September 18 issue) needs a few comments or corrections. First of all, the entire tracing in Figure 1 is ...

A healthy 33-year-old woman with no cardiac risk factors feels thumps or skipped beats in her chest a few times a day regardless of activity. An event recorder showed premature ventricular ...

Palpitations due to premature beats, either ventricular contractions (PVCs) or atrial contractions (PACs), can be extremely vexing even when we know they are benign. For many individuals, these ...

In the last few weeks, the Skeptical Cardiologist has had a run on with patients with premature atrial contractions (PACs). I've discussed in detail premature ventricular contractions (PVCs) here and ...

Our heartbeat serves as a vital indicator, which shows how well our heart functions. The heart experiences irregular rhythms when it beats either too quickly, too slowly or irregularly. Arrhythmias ...

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 ...

Drug induced bradycardia is an important but poorly characterized common clinical problem. This is reflected by the absence of definitions of various clinical forms of drug induced bradycardia in the ...