Background Previous epidemiological studies demonstrated that premature atrial contractions (PACs) and premature ventricular ...

A premature ventricular contraction occurs when a focus in the ventricle generates an action potential before the next scheduled sinoatrial nodal action potential. Premature, occurring earlier than ...

Background and objective Prior studies have suggested that patients with premature ventricular complexes (PVCs) may have an ...

Premature ventricular contraction (PVC) is a type of abnormal heartbeat, or arrhythmia. It happens when the heartbeat begins in the lower, rather than the upper, heart chambers. This creates an ...

In most cases, you can exercise at full capacity if you only sometimes experience PVCs. You may need to reduce the intensity if you often experience PVCs or have an underlying heart condition.

Palo Alto, CA - A new study shows that individuals undergoing treadmill testing who had ventricular arrhythmias during the recovery phase had an almost doubling of mortality in the five-year follow-up ...

Background A young adult female presented with syncope and periodic weakness. A 12-lead electrocardiogram showed frequent premature ventricular contractions and prolonged QU interval. Repetitive runs ...

June 17, 2003 - Progressive left ventricular (LV) remodeling and poor LV function following myocardial infarction (MI) are associated with increased risk of ventricular arrhythmias, according to the ...

Q: About 15 years ago, while giving blood, I was advised of an irregularity, which my doctor confirmed after an EKG, known as premature ventricular contractions. He told me not to worry, and I've not ...

Stress and anxiety can trigger premature ventricular contractions (PVCs), a type of arrhythmia. Premature ventricular contractions (PVCs) can be caused by emotional stress and anxiety, among other ...

Why has an otherwise healthy woman in her late 60s had repeated episodes of fainting and dizziness for the past several weeks? The woman presented to the emergency department immediately after one ...

A premature ventricular contraction occurs when a focus in the ventricle generates an action potential before the next scheduled sinoatrial nodal action potential. Ventricular bigeminy occurs when ...