Salaminia S, et al. - Researchers assessed the impact of magnesium sulfate administration on the incidence of cardiac arrhythmias after cardiac revascularization by analyzing data from relevant published randomized controlled trials before December 2017 identified from several databases (SID, Magiran, IranDoc, IranMedex, MedLib, PubMed, EmBase, Web of Science, Scopus, the Cochrane Library and Google Scholar). For all analyses, STATA (version 11.1) was used. The final analysis included 22 studies. Findings revealed the efficacy, safety as well as cost-effectiveness of magnesium sulfate in the prevention of many of ventricular and supraventricular arrhythmias.