Magnesium as an Antiarrhythmic
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þ Magnesium as an Atrial Fibrillation
  [Gullestad L, Birkel K, Molstad P, et. al. The effect of magnesium versus
  verapamil on supraventricular arrrhythmias. Clin Cardiol 1993;16:429-4334.]
  [Hays JV, Gilan JK, Rubal BJ. Effect of magnesium sulfate on ventricular
  rate control in atrial fibrillation. Ann Emerg Med 1994;24:61-64.]
  [Moran JL, Gallagher J, Peake S, et. al. Parenteral magnesium sulfate
  versus amiodarone in the therapy of atrial tachyarrhythmias: A prospective,
  randomized study. Crit Care Medicine. 1995;23:1816-1823.]

þ Magnesium for V. Fib arrest:
 - "Empirical magnesium supplementation did not improve the rate of successful
   resuscitation, survival to 24 h, or survival to hospital discharge overall
   or in any subpopulation of patients with in-hospital cardiac arrest."
   [Thel MC, Armstrong AL, McNulty SC, Califf RM, O'Connor CM. Randomised
   trial of magnesium in in-hospital cardiac arrest. Lancet 1997:350:1272-76.]