Blatt, Daniel B.Hanisch, BenjaminCo, KatrinaDatta, DibyadyutiBond, CaitlinOpoka, Robert O.Cusick, Sarah E.Michelow, Ian C.John, Chandy C.2023-10-312023-10-312022Blatt DB, Hanisch B, Co K, et al. Impact of Oxidative Stress on Risk of Death and Readmission in African Children With Severe Malaria: A Prospective Observational Study. J Infect Dis. 2022;226(4):714-722. doi:10.1093/infdis/jiac234https://hdl.handle.net/1805/36805Background: We hypothesized that oxidative stress in Ugandan children with severe malaria is associated with mortality. Methods: We evaluated biomarkers of oxidative stress in children with cerebral malaria (CM, n = 77) or severe malarial anemia (SMA, n = 79), who were enrolled in a randomized clinical trial of immediate vs delayed iron therapy, compared with community children (CC, n = 83). Associations between admission biomarkers and risk of death during hospitalization or risk of readmission within 6 months were analyzed. Results: Nine children with CM and none with SMA died during hospitalization. Children with CM or SMA had higher levels of heme oxygenase-1 (HO-1) (P < .001) and lower superoxide dismutase (SOD) activity than CC (P < .02). Children with CM had a higher risk of death with increasing HO-1 concentration (odds ratio [OR], 6.07 [95% confidence interval {CI}, 1.17-31.31]; P = .03) but a lower risk of death with increasing SOD activity (OR, 0.02 [95% CI, .001-.70]; P = .03). There were no associations between oxidative stress biomarkers on admission and risk of readmission within 6 months of enrollment. Conclusions: Children with CM or SMA develop oxidative stress in response to severe malaria. Oxidative stress is associated with higher mortality in children with CM but not with SMA.en-USPublisher PolicyPlasmodium falciparumCerebral malariaChildHeme oxygenase-1MalariaMalondialdehydeOxidative stressSevere malarial anemiaSuperoxide dismutaseArticle