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Vitamin C prophylaxis for posttransfusion hepatitis: lack of effect in a controlled trial
Abstract:
In vitro data suggest that vitamin C alters numerous parameters of immune function and might have potential as an agent which prevents infection. When an uncontrolled Japanese trial claimed efficacy of vitamin C in preventing posttransfusion hepatitis, a randomized double-blind controlled trial was initiated to determine if this claim of vitamin C efficacy could be confirmed. For 2 days before surgery and 2 wk after operation, cardiac surgery patients received orally either a lactose placebo or 800 mg of vitamin C four times daily. One hundred seventy-five patients completed the study. Highly significant elevations of plasma vitamin C were seen in the vitamin C treatment group as compared to the placebo group (p < 0.0005), but no significant difference in the incidence of posttransfusion hepatitis (p < 0.50) or the clinical course of hepatitis was seen between the two treatment groups.
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