期刊
MEDICAL JOURNAL OF AUSTRALIA
卷 180, 期 1, 页码 20-23出版社
AUSTRALASIAN MED PUBL CO LTD
DOI: 10.5694/j.1326-5377.2004.tb05768.x
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Objective: To investigate the efficacy of continuous infusion of hydrocortisone with or without chlorpheniramine bolus against early adverse reactions to polyspecific antivenom. Design and setting: Prospective, double-blind, randomised, placebo-controlled trial at General Hospital, Anuradhapura, Sri Lanka. Subjects: 52 patients with snake envenoming were randomised to receive infusion of hydrocortisone (Group A), hydrocortisone with chlorpheniramine bolus (Group 13) or placebo (Group C) during the administration of antivenom. Intervention: Hydrocortisone 1000 mg in 300 mL of normal saline infusion was started 5 min before and continued for 30 min after antivenom. Chlorpheniramine 10 mg intravenous bolus dose was given 5 min after commencement of antivenom. Main outcome measures: Occurrence and severity of adverse reactions to antivenom. Results: Adverse reactions were observed in 80% (12/15) of Group A, 52% (11/21) of Group B, and 81% (13/16) of Group C. Reactions were mild or moderate except in two patients. A significant reduction in the number of adverse reactions was seen in Group B compared with the placebo group (difference, 29 percentage points; 95% Cl, 0.2 to 58 percentage points). There was no significant difference between Group A and the placebo group. Conclusion: Prophylaxis with a parallel hydrocortisone infusion alone is ineffective in reducing the occurrence of acute adverse reaction to antivenom serum, but combining it with chlorpheniramine seems efficacious.
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