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Magnesium sulfate infusion for acute asthma in the emergency department #MMPMID28754601
OBJECTIVES: To describe the role of intravenous magnesium sulfate (MgSO(4)) as therapy for acute severe asthma in the pediatric emergency department (ED). SOURCE: Publications were searched in the PubMed and Cochrane databases using the following keywords: magnesium AND asthma AND children AND clinical trial. A total of 53 publications were retrieved using this criteria. References of relevant articles were also screened. The authors included the summary of relevant publications where intravenous magnesium sulfate was studied in children (age <18 years) with acute asthma. The NAEPP and Global Initiative for Asthma expert panel guidelines were also reviewed. SUMMARY OF THE DATA: There is a large variability in the ED practices on the intravenous administration of MgSO(4) for severe asthma. The pharmacokinetics of MgSO(4) is often not taken into account with a consequent impact in its pharmacodynamics properties. The cumulative evidence points to the effectiveness of intravenous MgSO(4) in preventing hospitalization, if utilized in a timely manner and at an appropriate dosage (50-75mg/kg). For every five children treated in the ED, one hospital admission could be prevented. Another administration modality is a high-dose continuous magnesium sulfate infusion (HDMI) as 50mg/kg/h/4h (200mg/kg/4h). The early utilization of HDMI for non-infectious mediated asthma may be superior to a MgSO(4) bolus in avoiding admissions and expediting discharges from the ED. HDMI appears to be cost-effective if applied early to a selected population. Intravenous MgSO(4) has a similar safety profile than other asthma therapies. CONCLUSIONS: Treatment with intravenous MgSO(4) reduces the odds of hospital admissions. The use of intravenous MgSO(4) in the emergency room was not associated with significant side effects or harm. The authors emphasize the role of MgSO(4) as an adjunctive therapy, while corticosteroids and beta agonist remain the primary acute therapeutic agents.
J+Pediatr+(Rio+J) 2017 ; 93 Suppl 1 (ä): 19-25
