Effect of Prophylaxis of Amiodarone and Magnesium to Prevent Atrial Fibrillation in Patients with Rheumatic Valve Disease Undergoing Mitral Valve Replacement Surgery.

also found a highly significant reduction in relative risk of AF with the addition of MgSO 4 .[ 18 ] These results are similar to our study, where AF in Group I was reduced by 31.6% from pre- to post-operative period and by 28.3% from preoperative to the time of discharge ( P < 0.001) [ Table 2 ].

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