Hypomagnesemia in heart failure with ventricular arrhythmias. Beneficial effects of magnesium supplementation
This study was performed to assess the role of magnesium in cardiac arrhythmias (irregular heartbeat) associated with heart failure (heart inability to pump an adequate amount of blood). 78 patients with arrhythmias were given intravenous magnesium or a placebo. 68 patients completed the study. The researchers concluded that arrhythmias can be alleviated or even abolished by magnesium supplementation. Further details can be found in the study.
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 frequent cause of arrhythmia, however, is a chronic deficiency of micronutrients in the billions of heart muscle cells. If this deficiency comprises the specialized “electrical” heart muscle cells that either generate (e.g. sinus node) or conduct the electrical impulse for the heartbeat, they no longer function properly and arrhythmia occurs.
Ceremuzyński L, Gebalska J, Wolk R, Makowska E. Hypomagnesemia in heart failure with ventricular arrhythmias. Beneficial effects of magnesium supplementation. J Intern Med. 2000 Jan;247(1):78-86.