Abstract
Objectives
To study the incidence of contrast-induced acute kidney injury (CI-AKI), evaluate its risk factors, study the role of plasma neutrophil gelatinase-associated lipocalin (NGAL) and evaluate the outcome of CI-AKI in critically ill children.
Methods
In this prospective cohort study, children aged 1 mo to 12 y who underwent contrast computed tomography (CECT) for various medical indications were included. Patients without renal function test before contrast administration, children with chronic kidney disease, children admitted for less than 48 h, and those with serum bilirubin more than 5 mg per dL were excluded. Serum creatinine and estimated-Glomerular filtration rate (e-GFR) were measured at admission, immediately before, and at 6, 24, 48 h after contrast. Plasma neutrophil gelatinase-associated lipocalin (NGAL) was measured before and 6 h after contrast. The incidence of CI-AKI by p-RIFLE (Pediatric Risk, Injury, Failure, Loss, End Stage Renal Disease) criteria, its risk factors, the diagnostic role of NGAL in CI-AKI, and outcomes [30 d unfavorable outcome (death, readmission) and renal recovery] were studied.
Results
One hundred children were enrolled. The indications for CECT were brain (58%) and respiratory pathology (20%). Incidence of CI-AKI was 35% (95% CI 26.4% to 44.8%); 71% in ‘Risk,’ and 29% in the ‘Injury’ stage. After multivariate logistic regression, age younger than 2 y was independently associated with CI-AKI. There was no significant difference in NGAL before (ROC-AUC 0.38, 95% CI 0.26 to 0.50) and 6 h after CECT scan (AUC 0.41, 95% CI 0.29 to 0.54) to predict CI-AKI. There were 7% deaths but no readmission at 30 d. Among 33 CI-AKI patients who survived, the operational definition of renal recovery was achieved in 51.5% (n = 17), complete renal recovery was achieved in 97% (n = 32), and partial renal recovery was achieved in 3% (n = 1) of patients at discharge, while none received renal supportive therapy.
Conclusions
The incidence of contrast-induced acute kidney injury was 35% with age younger than two year being independently associated with CI-AKI. NGAL did not predict the CI-AKI.
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Acknowledgments
The JIPMER granted the support to attend and present the abstract in ESPNIC 2019 to RR and duly acknowledge the same. The authors acknowledge the contribution of Mrs. S. Raja Deepa B. Com, MCA (JIPMER Campus, Puducherry, India) for review and editing of the manuscript; Mr. Rakesh Mohindra (Punjab University, Chandigarh, India) and Mrs. Thenmozhi M (M.Sc, Ph.D., Senior Demonstrator, CMC, Vellore, India) for helping the statistical analysis and Mrs. Harpreet Kaur (Punjab University, Chandigarh, India), and Mrs. Neelima Chadha (Tulsi Das Library, PGIMER, Chandigarh, India) for helping medical literature search.
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YA and RR were involved in the management of the patients. YA collected the data, reviewed the literature, and drafted the first manuscript. SK contributed to protocol development, review of literature, and manuscript. GPS participated in protocol preparations and drafting of the manuscript and supervised the analysis of biochemical samples. RR conceptualized the study, reviewed the literature and critically reviewed the manuscript. All authors approved the final version of the manuscript. RR is the guarantor of the paper.
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JIPMER Intramural Research Grant (JIP/Res/Intr-MD/PHS2/2016–2017 dt 01.07.2017 and JIP/Res/Intramural/IInd yr grant/2017–2018 dt 13.09.2017 to RR). The JIPMER granted the support to attend and present the study abstract in the 30th Annual Meeting of the European Society of Paediatric and Neonatal Intensive Care (ESPNIC 2019), 18–21, June 2019, Salzburg, Austria vide No.Admin.II/FV/2019 dt 06.06.2019 to RR.
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Note: The abstract was presented in the 30th Annual Meeting of the European Society of Paediatric and Neonatal Intensive Care (ESPNIC 2019), held from 18 – 21 June 2019 at Salzburg, Austria.
Trial Registration: CTRI/2017/03/008060.
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Agarwal, Y., Rameshkumar, R., Krishnamurthy, S. et al. Incidence, Risk Factors, the Role of Plasma NGAL and Outcome of Contrast-Induced Acute Kidney Injury in Critically Ill Children. Indian J Pediatr 88, 34–40 (2021). https://doi.org/10.1007/s12098-020-03414-9
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DOI: https://doi.org/10.1007/s12098-020-03414-9