Depending on how the heart’s electrical activity appears on an EKG, a doctor may diagnose coarse or fine ventricular fibrillation (VF). Coarse VF appears as larger waves on an EKG compared with the ...

Malignant arrhythmias are dangerous heart rhythm problems that can lead to cardiac arrest, most often originating in the heart’s lower chambers. These arrhythmias are frequently linked to underlying ...

An analysis of two large cohort studies finds that carriers of disease-causing variants within genes for three ...

Hypokalemia may lead to an irregular heartbeat, also known as arrhythmia. Some arrhythmias can be life threatening without treatment, but restoring potassium levels may help reverse symptoms alongside ...