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 ...

Ventricular arrhythmia occurs when the heart’s lower chambers beat out of sync, which can prevent the heart from effectively pumping blood throughout the body. Diagnosis of ventricular arrhythmia ...

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 ...

Hypokalemia and even low-normal plasma potassium levels increase the risk of ventricular arrhythmias among patients with cardiovascular disease. An assessment of a strategy of actively increasing ...

Introduction: Continuous positive airway pressure (CPAP) treatment is considered effective in reducing ventricular arrhythmias (VAs) in patients with obstructive sleep apnea (OSA). Objectives: We ...

SAN FRANCISCO — While renal denervation achieved its goals of lowering blood pressure and heart rate in a small series of especially high-risk patients with drug-resistant hypertension, it also ...

A heart arrhythmia is when your heart beats too fast, too slow, or out of sync. Some arrhythmias can be genetic. A genetic arrhythmia happens when one or both of your parents pass down a gene change ...