Magnesium for atrial fibrillation after coronary artery bypass graft surgery: its role in aetiology and prevention.

Objective: To summarise the potential consequences of atrial fibrillation (AF) after coronary artery bypass graft surgery (CABG) and the relationship of the arrhythmia with serum magnesium concentration ([Mg]) and to review the trials of magnesium supplementation as prophylaxis against post-CABG AF. Data sources: Abstracts, articles and published reviews on AF after CABG and magnesium