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Mannitol as adjunct therapy for childhood cerebral malaria in Uganda: a randomized clinical trial
Beatrice Namutangula1, Grace Ndeezi, Justus S Byarugaba
1Department of Paediatrics and Child Health, Makerere University Medical School, P O Box 7072 Kampala Uganda. wabwire74@yahoo.com
Background:
Several reports have suggested that raised intracranial pressure (ICP) is a major contributor to death among children with cerebral malaria. Mannitol, an osmotic diuretic, effectively lowers ICP and is used to treat post-traumatic raised ICP. It is not clear whether intravenous mannitol given to children with cerebral malaria improves clinical outcome. The objective of this study was to determine the effect of mannitol as adjunct therapy on the clinical outcome of children with cerebral malaria.
Methods:
This randomized double-blind placebo controlled clinical trial was carried out at the Emergency Paediatric ward of Mulago Hospital, Uganda's national referral and teaching hospital. One hundred and fifty six children aged 6 to 60 months with cerebral malaria were randomized to either one dose of mannitol 1 g/kg or placebo, in addition to intravenous quinine. Main outcome measures included coma recovery time; time to sit unsupported, begin oral intake; duration of hospitalization; death and adverse effects.
Results:
Time to regain consciousness (p = 0.11), sit unsupported (p = 0.81), time to start oral intake (p = 0.13) and total coma duration (p = 0.07) were similar in both groups. There was no significant difference in the mortality between the placebo (13/80 or 16.3%) and mannitol (10/76 or 13.2%) groups: RR = 1.2 (CI 0.5-2.7). No adverse effects were observed after administration of mannitol.
Conclusion:
Mannitol had no significant impact on clinical outcome of cerebral malaria. It is difficult to recommend intravenous mannitol as adjunct therapy for childhood cerebral malaria.
Insights
Intravenous mannitol did not improve clinical outcomes or reduce mortality in children with cerebral malaria. This study found no significant benefit of mannitol as an adjunct therapy for this serious childhood illness.
Area of Science:
- Pediatric infectious diseases
- Neurocritical care
- Pharmacology
Background:
- Raised intracranial pressure (ICP) is a significant factor in childhood cerebral malaria mortality.
- Mannitol, an osmotic diuretic, is used for post-traumatic ICP but its efficacy in cerebral malaria is unclear.
- Investigating mannitol's impact on clinical outcomes in cerebral malaria is crucial.
Purpose of the Study:
- To determine the effect of intravenous mannitol as an adjunct therapy on the clinical outcome of children with cerebral malaria.
- To evaluate mannitol's impact on recovery time, duration of hospitalization, and mortality.
Main Methods:
- A randomized, double-blind, placebo-controlled trial involving 156 children (6-60 months) with cerebral malaria.
- Participants received either intravenous quinine with a single dose of mannitol (1 g/kg) or placebo.
- Outcomes measured included coma recovery, motor milestones, oral intake, hospitalization duration, mortality, and adverse effects.
Main Results:
- No significant differences were observed in time to regain consciousness, sit unsupported, or start oral intake between mannitol and placebo groups.
- Total coma duration and mortality rates were similar: 16.3% in the placebo group versus 13.2% in the mannitol group.
- No adverse effects were reported with mannitol administration.
Conclusions:
- Intravenous mannitol did not significantly impact the clinical outcome of childhood cerebral malaria.
- Current evidence does not support the use of intravenous mannitol as an adjunct therapy for cerebral malaria in children.
- Further research may be needed to explore alternative or refined treatment strategies.
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