Comparison of the Efficacy of Oral versus Intravascular Magnesium in the Prevention of Hypomagnesemia and Arrhythmia after CABG

This 2018 interventional clinical study compared the effectiveness of oral versus intravenous (IV) magnesium supplementation in preventing hypomagnesemia and arrhythmias following coronary artery bypass grafting (CABG). Eighty-two patients were randomized to receive either 1,600 mg of oral magnesium hydroxide via nasogastric tube before surgery or 2 g of IV magnesium