Background: Cardiac arrhythmias. especially atrial fibrillation. are among the most common early complications of open-heart surgery. Hypomagnesemia is one of the clinical mechanisms associated with the pathogenesis of postoperative atrial fibrillation. https://www.jmannino.com/quick-sale-Catherine-Lansfield-Ombre-Rainbow-Clouds-66x72-Ready-Made-Eyelet-Curtains-Pastel-big-sale/