Cochrane · systematic review · CD003898

Inhaled magnesium sulfate in the treatment of acute asthma

Knightly, R, Milan, SJ, Hughes, R, et al. · Cochrane Database of Systematic Reviews · 2017 · Cochrane Library

Airways2 versionsAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
17
current version
GRADE rated
16
No studies
1
Included studies
NR
No studies 1 · 5.9%Ungraded 0 · 0%Very low 3 · 17.6%Low 9 · 52.9%Moderate 3 · 17.6%High 1 · 5.9%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Current version only

MgSO4 + SABA + ipratropium compared to SABA + ipratropium in the treatment of acute asthma

Population: adults and children with acute exacerbation of asthma
CD003898.PUB6 (current) · 7 questions
OutcomeEffectEvidenceStatus / GRADE
Pulmonary function (% predicted FEV1) (90 to 120 minutes)
MgSO4 + SABA + ipratropium vs SABA + ipratropium
no estimate extracted2 studies · 120 participantsVery low
Downgraded: risk of bias, imprecision
Pulmonary function % predicted PEF (60 minutes)
MgSO4 + SABA + ipratropium vs SABA + ipratropium
no estimate extracted2 studies · 636 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency
Clinical severity scores (60 minutes)
MgSO4 + SABA + ipratropium vs SABA + ipratropium
no estimate extracted2 studies · 1130 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Admission at first presentation
MgSO4 + SABA + ipratropium vs SABA + ipratropium
RR 0.95 [0.91, 1]4 studies · 1308 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency
Readmission (7 to 30 days)
MgSO4 + SABA + ipratropium vs SABA + ipratropium
RR 1.8 [0.84, 3.87]2 studies · 750 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Serious adverse events (during admission)
MgSO4 + SABA + ipratropium vs SABA + ipratropium
no estimate extracted2 studies · 557 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency
Any adverse event (during admission)
MgSO4 + SABA + ipratropium vs SABA + ipratropium
no estimate extracted2 studies · 1197 participantsHigh

MgSO4 + SABA compared to SABA in the treatment of acute asthma

Population: adults and children with acute exacerbation of asthma
CD003898.PUB6 (current) · 6 questions
OutcomeEffectEvidenceStatus / GRADE
Pulmonary function % predicted FEV1 (20 minutes to 2 to 3 h)
MgSO4 + SABA vs SABA
no estimate extracted4 studies · 208 participantsLow
Downgraded: risk of bias, imprecision
Pulmonary function PEF L/min ‐ Adults (20 minutes to 2 to 3 h)
MgSO4 + SABA vs SABA
no estimate extracted3 studies · 155 participantsLow
Downgraded: risk of bias, imprecision
Pulmonary function PEF L/min ‐ Children (60 minutes)
MgSO4 + SABA vs SABA
no estimate extracted1 study · 80 participantsLow
Downgraded: risk of bias, imprecision
Admission to hospital at initial presentation
MgSO4 + SABA vs SABA
RR 0.78 [0.52, 1.15]6 studies · 375 participantsLow
Downgraded: risk of bias, imprecision
Serious adverse events (During ED/hospital admission)
MgSO4 + SABA vs SABA
no estimate extracted5 studies · 243 participantsLow
Downgraded: risk of bias, imprecision
Any adverse events (During ED/hospital admission)
MgSO4 + SABA vs SABA
no estimate extracted5 studies · 694 participantsLow
Downgraded: risk of bias, imprecision

MgSO4 compared to SABA in the treatment of acute asthma

Population: adults and children with acute exacerbation of asthma
CD003898.PUB6 (current) · 4 questions
OutcomeEffectEvidenceStatus / GRADE
Lung function
MgSO4 vs SABA
no estimate extractedNRNo studies
Clinical severity score ‐ Fischl index (120 minutes)
MgSO4 vs SABA
no estimate extracted3 studies · 93 participantsVery low
Downgraded: risk of bias, imprecision
Admission to hospital at initial presentation
MgSO4 vs SABA
RR 0.53 [0.05, 5.31]1 study · 33 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Serious adverse events (During ED/hospital admission)
MgSO4 vs SABA
no estimate extracted2 studies · 53 participantsLow
Downgraded: risk of bias, imprecision

MgSO4 + B2‐agonists compared to B2‐agonists alone for acute asthma

Population: people with acute asthma
CD003898.PUB5 · 6 questions
OutcomeEffectEvidenceStatus / GRADE
Pulmonary Function testing FEV1
MgSO4 + B2‐agonists vs B2‐agonists alone
SMD 0.233 studies · 188 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency
Pulmonary function testing PEF ‐ up to 60 minutes
MgSO4 + B2‐agonists vs B2‐agonists alone
MD 7.072 studies · 135 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency
Pulmonary function testing PEF ‐ Discharge
MgSO4 + B2‐agonists vs B2‐agonists alone
MD 0.681 study · 26 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Admission to Hospital
MgSO4 + B2‐agonists vs B2‐agonists alone
RR 0.76 [0.49, 1.16]4 studies · 249 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency
Serious Adverse Events
MgSO4 + B2‐agonists vs B2‐agonists alone
RD 04 studies · 223 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency
Mild‐Moderate Adverse Events
MgSO4 + B2‐agonists vs B2‐agonists alone
no estimate extracted3 studies · 209 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency

MgSO4 compared to B2‐agonist for people with acute asthma

Population: patients with people with acute asthma
CD003898.PUB5 · 4 questions
OutcomeEffectEvidenceStatus / GRADE
Pulmonary Function testing PEF
MgSO4 vs B2‐agonist
no estimate extracted3 studies · 113 participantsModerate
Downgraded: risk of bias, inconsistency
Admision to hospital
MgSO4 vs B2‐agonist
RR 0.531 study · 33 participantsLow
Downgraded: risk of bias, inconsistency
Serious Side Effects
MgSO4 vs B2‐agonist
RD 01 study · 33 participantsLow
Downgraded: risk of bias, inconsistency
Mild‐Moderate Side Effects
MgSO4 vs B2‐agonist
no estimate extracted1 study · 33 participantsLow
Downgraded: risk of bias, inconsistency