Clinical and laboratory predictors of death in African children with features of severe malaria: a systematic review and meta-analysis.

Sypniewska, Paulina; Duda, Jose F; Locatelli, Isabella; Althaus, Clotilde Rambaud; Althaus, Fabrice; Genton, Blaise (2017). Clinical and laboratory predictors of death in African children with features of severe malaria: a systematic review and meta-analysis. BMC medicine, 15(1), p. 147. BioMed Central 10.1186/s12916-017-0906-5

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BACKGROUND The criteria for defining severe malaria have evolved over the last 20 years. We aimed to assess the strength of association of death with features currently characterizing severe malaria through a systematic review and meta-analysis. METHOD Electronic databases (Medline, Embase, Cochrane Database of Systematic Reviews, Thomson Reuters Web of Knowledge) were searched to identify publications including African children with severe malaria. PRISMA guidelines were followed. Selection was based on design (epidemiological, clinical and treatment studies), setting (Africa), participants (children < 15 years old with severe malaria), outcome (survival/death rate), and prognostic indicators (clinical and laboratory features). Quality assessment was performed following the criteria of the 2011 Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2). Odds ratios (ORs) were calculated for each study and prognostic indicator, and, when a test was assessed in at least two studies, pooled estimates of ORs were computed using fixed- or random-effects meta-analysis. RESULTS A total of 601 articles were identified and screened and 30 publications were retained. Features with the highest pooled ORs were renal failure (5.96, 95% CI 2.93-12.11), coma score (4.83, 95% CI 3.11-7.5), hypoglycemia (4.59, 95% CI 2.68-7.89), shock (4.31, 95% CI 2.15-8.64), and deep breathing (3.8, 95% CI 3.29-4.39). Only half of the criteria had an OR > 2. Features with the lowest pooled ORs were impaired consciousness (0.58, 95% CI 0.25-1.37), severe anemia (0.76, 95% CI 0.5- 1.13), and prostration (1.12, 95% CI 0.45-2.82). CONCLUSION The findings of this meta-analysis show that the strength of association between the criteria defining severe malaria and death is quite variable for each clinical and/or laboratory feature (OR ranging from 0.58 to 5.96). This ranking allowed the identification of features weakly associated with death, such as impaired consciousness and prostration, which could assist to improve case definition, and thus optimize antimalarial treatment.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of General Internal Medicine (DAIM) > Clinic of General Internal Medicine

UniBE Contributor:

Sypniewska, Paulina

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1741-7015

Publisher:

BioMed Central

Language:

English

Submitter:

Jacques Donzé

Date Deposited:

26 Mar 2018 13:16

Last Modified:

01 Apr 2018 02:24

Publisher DOI:

10.1186/s12916-017-0906-5

PubMed ID:

28768513

Uncontrolled Keywords:

Death Mortality Predictors Severe malaria Systematic review

BORIS DOI:

10.7892/boris.111501

URI:

https://boris.unibe.ch/id/eprint/111501

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