Intravenous magnesium therapy for moderate to severe pediatric asthma: results of a randomized, placebo-controlled trial
Abstract
To evaluate the efficacy of intravenous magnesium (IVMg) therapy for moderate to severe asthma exacerbations in pediatric patients. Randomized, double-blind, placebo-controlled, clinical trial. Urban pediatric emergency department. Thirty-one patients aged 6 to 18 years who were being treated for an acute asthma exacerbation with peak expiratory flow rate (PEFR) less than 60% of the predicted value after receiving three beta 2-adrenergic nebulizer treatments. Magnesium sulfate infusion, 25 mg/kg (maximum, 2 gm), or equivolume saline solution for 20 minutes. Vital signs, O2 saturation by pulse oximetry, PEFR, forced vital capacity, forced expiratory volume at 1 second, and physical examination were serially recorded for 110 minutes, with serum magnesium concentrations measured before and after the 20-minute infusion. At 50 minutes the magnesium group had a significantly greater percentage of improvement from baseline in forced expiratory volume at 1 second (34% vs -1%; p = 0.05); this improvement was sustained and even greater at 110 minutes (75% vs 5%; p = 0.01). Results were similar for PEFR at 80 through 110 minutes (59% vs 20% at 110 minutes; p = 0.05) and for forced vital capacity (55% vs 8% at 80 minutes; p = 0.05). There ...Continue Reading
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References
Citations
Effect of magnesium sulphate on bi-spectral index (BIS) values during general anesthesia in children
North American practice patterns of intravenous magnesium therapy in severe acute asthma in children
Clinical pharmacokinetics of magnesium sulfate in the treatment of children with severe acute asthma
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