Magnesium administration reduces risk for arrhythmias in cardiac surgery

Summary An irregular heartbeat or “arrhythmia” is an abnormal heart rhythm, caused by problems with the heart’s electrical conduction system. Arrhythmia occurs when the heart beats too fast (tachycardia), too slow (bradycardia) or with a skipping rhythm. Arrhythmias can be caused by a heart attack or other (organic) damage to the heart muscle. The most…