Arrhythmias are heart conditions that happen when you have an erratic, or irregular, heartbeat. They can start in the atria or the ventricles, which are your heart’s upper and lower chambers, ...

Cannabis use increases use for arrhythmia in the general population, but lowers risk for arrhythmia in patients with heart disease.

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 ...