• Ali Özdemir and Dilek Doğruel.
• Pediatric Pulmonary Section, Department of Pediatrics, Mersin City Training and Research Hospital, Mersin, Turkey, aliozdemir@hotmail.com.
• Med Princ Pract. 2020 Jan 1; 29 (3): 292-298.

ObjectiveSystemic administration of magnesium sulfate (MgSO4) has been proposed as a treatment for pediatric patients with acute asthma. However, previous trials show mixed results and uncertain evidence of benefit. The aim of the study was to ascertain whether intravenous (IV) MgSO4 improves lung function parameters in children with acute asthma.MethodsThis was a prospective clinical trial. All patients with acute asthma received 40-50 mg/kg or maximum 1,500 mg (>30 kg) of single dose IV MgSO4, administered over 60 min. Spirometry was conducted before and 15 min after MgSO4 infusion.ResultsOne hundred and fifteen children aged 6 to 17 years presenting with acute asthma and FEV1 between 40% and 75% of predicted were included. Then, the patients were classified into 2 groups; mild asthma attack (FEV1 ranged from 60% to 75%; n = 50) or moderate asthma attack (FEV1 ranged from 40% to 59%; n = 65). The baseline characteristics were similar in both groups. The mean percent predicted pre and post values for FEV1/FVC ratio (mild group: 82.59 ± 9.46 vs. 85.06 ± 8.95; moderate group: 77.31 ± 11.17 vs. 79.99 ± 11.77), FEV1 (mild group: 67.14 ± 4.99 vs. 72.29 ± 8.05; moderate group: 48.50 ± 6.81 vs. 53.78 ± 9.81), PEF (mild group: 65.49 ± 12.32 vs. 71.37 ± 12.96; moderate group: 47.56 ± 11.78 vs. 51.97 ± 13.98), and FEF25-75 (mild group: 58.20 ± 12.24 vs. 66.57 ± 16.95; moderate group: 37.77 ± 11.37 vs. 43.41 ± 14.19) showed a statistically significant (p < 0.05 for all) bronchodilator effect after MgSO4 infusion in both groups with few side effects.ConclusionAdministration of IV MgSO4 was associated with improved pulmonary function in children with acute asthma.© 2020 The Author(s) Published by S. Karger AG, Basel.

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