Neurological sequelae in survivors of cerebral malaria
Isaac Oludare Oluwayemi1, Biobele Joackim Brown, Olusola Adetunji Oyedeji
1Department of Paediatrics, Ekiti State University Teaching Hospital, Ado-Ekiti, Nigeria.
Insights
Neurological deficits can persist for up to 24 months in children surviving cerebral malaria (CM). This study found no link between common risk factors and the persistence of these long-term neurological impairments.
Area of Science:
- Pediatric Neurology
- Infectious Diseases
- Global Health
Background:
- Cerebral malaria (CM) is a significant cause of childhood mortality and long-term neurological disability.
- Data on the persistence of neurological sequelae after hospital discharge and their associated risk factors in pediatric CM survivors are limited.
Purpose of the Study:
- To prospectively document persistent neurological impairments in children treated for cerebral malaria post-discharge.
- To determine the frequency of persistent neurological deficits and identify risk factors associated with their persistence.
Main Methods:
- Prospective study involving 160 children treated for CM between January 2004 and November 2006.
- Review of case records for initial CM treatment and subsequent follow-up of survivors to assess neurological sequelae.
- Analysis of potential risk factors including hypoglycemia, anemia, age, sex, and convulsion multiplicity.
Main Results:
- Of 160 admitted children, 131 (81.9%) survived CM.
- Neurological sequelae were observed in 13.7% at discharge and 4.6% at follow-up.
- Persistent deficits included memory impairment (1.5%), seizure disorders (0.8%), visual impairment (0.8%), speech impairment (0.8%), monoparesis (0.8%), and hyperactivity (0.8%), with the longest lasting up to 24 months. No significant associations were found between risk factors and persistence.
Conclusions:
- Neurological deficits are common complications of childhood cerebral malaria.
- Neurological sequelae can persist for extended periods, up to 24 months or longer, in CM survivors.
- Identified risk factors for CM did not correlate with the persistence of neurological sequelae.
Introduction:
Cerebral malaria is a common cause of neurological sequelae and death in childhood. Information on persistent neurological sequelae post hospital discharge and their predisposing factors are scarce.
Methods:
This is a prospective study describing persisting neurological impairments post discharge among children treated for cerebral malaria. In addition the study was designed to investigate the frequency of persistent neurologic deficits and the risk factors for their persistence in these patients. The case records of 160 patients treated for CM at the Paediatrics Department of University College Hospital, Ibadan from January 2004 to November 2006 were reviewed to recruit cases. Recruited survivors were then followed up for information concerning the presence and persistence of neurological sequelae.
Results:
A total of 160 children aged 9 months to 134 months were admitted and treated for CM during the study period. One hundred and thirty one (81.9%) survived while 29 (18.1%) died. The 131 survivors of cerebral malaria consisted of 64 boys and 67 girls. Neurological sequelae occurred in 13.7% of survivors of cerebral malaria at discharge and 4.6% at follow up. Six children with neurological deficits at discharge had persistence of deficits 6 months post-hospital discharge and one at 24 months. No associations were found between hypoglycemia, anemia, age, sex and multiplicity of convulsions, and persistence of neurologic sequelae. The persisting neurologic deficits among survivors at follow up were: memory impairment (1.5%), seizure disorders (0.8%), visual impairment (0.8%), speech impairment (0.8%), monoparesis (0.8%) and hyperactivity (0.8%) at follow up. The longest persisting sequelae lasted for at least 24 months.
Conclusion:
Neurologic deficits are not uncommon complications of CM. Neurologic sequelae may persist for as long as 24 months or more in survivors of childhood CM. There is no association between the risk factors for neurologic deficits and persistent neurologic sequelae.
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