“…934 Other therapies have also been studied in small, hypothesis-generating trials, but have not demonstrated clear beneficial effects. These include magnesium, 925,935,936 n-3 polyunsaturated fatty acids, 937 -945 colchicine, 946 corticosteroids, 947,948 and posterior pericardectomy. 949 Post-operative overdrive biatrial pacing has not gained widespread use despite some suggestion of prophylactic effects.…”