Risk factors for acute kidney injury at presentation among children with CNS malaria: a case control study

Abstract Background Recent research has established that acute kidney injury (AKI) is a common problem in severe paediatric malaria. Limited access to kidney diagnostic studies in the low resources settings where malaria is common has constrained research on this important problem. Methods Enrolment...

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Main Authors: Derby Tembo, Suzanna Mwanza, Chisambo Mwaba, Ifunanya Dallah, Somwe wa Somwe, Karl B. Seydel, Gretchen L. Birbeck
Format: Article
Language:English
Published: BMC 2022-11-01
Series:Malaria Journal
Subjects:
Online Access:https://doi.org/10.1186/s12936-022-04327-y
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author Derby Tembo
Suzanna Mwanza
Chisambo Mwaba
Ifunanya Dallah
Somwe wa Somwe
Karl B. Seydel
Gretchen L. Birbeck
author_facet Derby Tembo
Suzanna Mwanza
Chisambo Mwaba
Ifunanya Dallah
Somwe wa Somwe
Karl B. Seydel
Gretchen L. Birbeck
author_sort Derby Tembo
collection DOAJ
description Abstract Background Recent research has established that acute kidney injury (AKI) is a common problem in severe paediatric malaria. Limited access to kidney diagnostic studies in the low resources settings where malaria is common has constrained research on this important problem. Methods Enrolment data from an ongoing clinical trial of antipyretics in children with central nervous system (CNS) malaria, CNS malaria being malaria with seizures or coma, was used to identify risk factors for AKI at presentation. Children 2–11 years old with CNS malaria underwent screening and enrollment assessments which included demographic and anthropomorphic data, clinical details regarding the acute illness, and laboratory studies including creatinine (Cr), quantitative parasite count (qPC), quantitative histidine rich protein 2 (HRP2), lactate, and bilirubin levels. Children with a screening Cr > 106 µmol/l were excluded from the study due to the potential nephrotoxic effects of the study drug. To identify risk factors for AKI at the time of admission, children who were enrolled in the study were categorized as having AKI using estimates of their baseline (i.e. before this acute illness) kidney function and creatinine at enrollment applying the Kidney Disease: Improving Global Outcome (KDIGO) 2012 guidelines. Logistic regressions and a multivariate model were used to identify clinical and demographic risk factors for AKI at presentation among those children enrolled in the study. Results 465 children were screened, 377 were age-appropriate with CNS malaria, 22 (5.8%) were excluded due to Cr > 106 µmol/l, and 209 were enrolled. Among the 209, AKI using KDIGO criteria was observed in 134 (64.1%). One child required dialysis during recovery. Risk factors for AKI in both the logistic regression and multivariate models included: hyperpyrexia (OR 3.36; 95% CI 1.39–8.12) and age with older children being less likely to have AKI (OR 0.72; 95% CI 0.62–0.84). Conclusion AKI is extremely common among children presenting with CNS malaria. Hyperpyrexia with associated dehydration may contribute to the AKI or may simply be a marker for a more inflammatory systemic response that is also affecting the kidney. Appropriate fluid management in children with CNS malaria and AKI may be challenging since generous hydration to support kidney recovery could worsen malaria-induced cerebral oedema in this critically ill population. Trial registration https://clinicaltrials.gov/ct2/show/NCT03399318
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spelling doaj.art-69911d2779eb4f3591ccb64b48fd4e9f2022-12-22T03:58:07ZengBMCMalaria Journal1475-28752022-11-012111810.1186/s12936-022-04327-yRisk factors for acute kidney injury at presentation among children with CNS malaria: a case control studyDerby Tembo0Suzanna Mwanza1Chisambo Mwaba2Ifunanya Dallah3Somwe wa Somwe4Karl B. Seydel5Gretchen L. Birbeck6Department of Paediatrics and Child Health, Chipata Central HospitalDepartment of Paediatrics and Child Health, Chipata Central HospitalDept. of Paediatric & Child Health, University of Zambia School of MedicineDepartment of Neurology, University of RochesterUniversity Teaching Hospitals, Neurology Research OfficeBlantyre Malaria Project, Kamuzu University of Health SciencesDept. of Paediatric & Child Health, University of Zambia School of MedicineAbstract Background Recent research has established that acute kidney injury (AKI) is a common problem in severe paediatric malaria. Limited access to kidney diagnostic studies in the low resources settings where malaria is common has constrained research on this important problem. Methods Enrolment data from an ongoing clinical trial of antipyretics in children with central nervous system (CNS) malaria, CNS malaria being malaria with seizures or coma, was used to identify risk factors for AKI at presentation. Children 2–11 years old with CNS malaria underwent screening and enrollment assessments which included demographic and anthropomorphic data, clinical details regarding the acute illness, and laboratory studies including creatinine (Cr), quantitative parasite count (qPC), quantitative histidine rich protein 2 (HRP2), lactate, and bilirubin levels. Children with a screening Cr > 106 µmol/l were excluded from the study due to the potential nephrotoxic effects of the study drug. To identify risk factors for AKI at the time of admission, children who were enrolled in the study were categorized as having AKI using estimates of their baseline (i.e. before this acute illness) kidney function and creatinine at enrollment applying the Kidney Disease: Improving Global Outcome (KDIGO) 2012 guidelines. Logistic regressions and a multivariate model were used to identify clinical and demographic risk factors for AKI at presentation among those children enrolled in the study. Results 465 children were screened, 377 were age-appropriate with CNS malaria, 22 (5.8%) were excluded due to Cr > 106 µmol/l, and 209 were enrolled. Among the 209, AKI using KDIGO criteria was observed in 134 (64.1%). One child required dialysis during recovery. Risk factors for AKI in both the logistic regression and multivariate models included: hyperpyrexia (OR 3.36; 95% CI 1.39–8.12) and age with older children being less likely to have AKI (OR 0.72; 95% CI 0.62–0.84). Conclusion AKI is extremely common among children presenting with CNS malaria. Hyperpyrexia with associated dehydration may contribute to the AKI or may simply be a marker for a more inflammatory systemic response that is also affecting the kidney. Appropriate fluid management in children with CNS malaria and AKI may be challenging since generous hydration to support kidney recovery could worsen malaria-induced cerebral oedema in this critically ill population. Trial registration https://clinicaltrials.gov/ct2/show/NCT03399318https://doi.org/10.1186/s12936-022-04327-yComaSeizureChronic kidney diseaseRenal functionSub-Saharan Africa
spellingShingle Derby Tembo
Suzanna Mwanza
Chisambo Mwaba
Ifunanya Dallah
Somwe wa Somwe
Karl B. Seydel
Gretchen L. Birbeck
Risk factors for acute kidney injury at presentation among children with CNS malaria: a case control study
Malaria Journal
Coma
Seizure
Chronic kidney disease
Renal function
Sub-Saharan Africa
title Risk factors for acute kidney injury at presentation among children with CNS malaria: a case control study
title_full Risk factors for acute kidney injury at presentation among children with CNS malaria: a case control study
title_fullStr Risk factors for acute kidney injury at presentation among children with CNS malaria: a case control study
title_full_unstemmed Risk factors for acute kidney injury at presentation among children with CNS malaria: a case control study
title_short Risk factors for acute kidney injury at presentation among children with CNS malaria: a case control study
title_sort risk factors for acute kidney injury at presentation among children with cns malaria a case control study
topic Coma
Seizure
Chronic kidney disease
Renal function
Sub-Saharan Africa
url https://doi.org/10.1186/s12936-022-04327-y
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