Abstract
Objective
To investigate whether NICU discharge summaries documented neonatal AKI and estimate if nephrology consultation mediated this association.
Study design
Secondary analysis of AWAKEN multicenter retrospective cohort. Exposures: AKI severity and diagnostic criteria. Outcome: AKI documentation on NICU discharge summaries using multivariable logistic regression to estimate associations and test for causal mediation.
Results
Among 605 neonates with AKI, 13% had documented AKI. Those with documented AKI were more likely to have severe AKI (70.5% vs. 51%, p < 0.001) and SCr-only AKI (76.9% vs. 50.1%, p = 0.04). Nephrology consultation mediated 78.0% (95% CL 46.5–109.4%) of the total effect of AKI severity and 82.8% (95% CL 70.3–95.3%) of the total effect of AKI diagnostic criteria on documentation.
Conclusion
We report a low prevalence of AKI documentation at NICU discharge. AKI severity and SCr-only AKI increased odds of AKI documentation. Nephrology consultation mediated the associations of AKI severity and diagnostic criteria with documentation.
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Data availability
De‐identified individual participant data will be made available through the Neonatal Kidney Collaborative through their website www.babykidney.org. The data will be de‐identified and a limited access data set is available through a request form on that page. Data dictionaries, in addition to study protocol, and case report forms will be made available. The data will be made available to researchers who provide a methodologically sound proposal for use in achieving the goals of the approved proposal.
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Acknowledgements
The authors would like to thank Samantha Wallace (Department of Pediatrics, Indiana University School of Medicine) for help with technical editing and proofreading of this manuscript.
Funding
Cincinnati Children’s Hospital Center for Acute Care Nephrology provided funding to create and maintain the Assessment of Worldwide Acute Kidney Injury Epidemiology in Neonates (AWAKEN) study Medidata Rave electronic database. The Pediatric and Infant Center for Acute Nephrology (PICAN) provided support for web meetings and for the Neonatal Kidney Collaborative (NKC) steering committee annual meeting at The University of Alabama at Birmingham (UAB), as well as support for 2 of the AWAKEN study investigators at UAB (D.A. and R.G.). PICAN is part of the Department of Pediatrics at UAB and is funded by Children’s of Alabama hospital, UAB Department of Pediatrics, UAB School of Medicine, and UAB Center for Clinical and Translational Sciences (National Institutes of Health grant UL1TR001417). Finally, the AWAKEN study at The University of New Mexico was supported by the Clinical and Translational Science Center at The University of New Mexico (National Institutes of Health grant UL1TR001449) and by The University of Iowa Institute for Clinical and Translational Science (grant U54TR001356). The AWAKEN study investigators at the Canberra Hospital at the Australian National University Medical School were supported by the Canberra Hospital Private Practice Fund, and investigators at University of Virginia Children’s Hospital were supported by a 100 Women Who Care Grant from the 100 Women Charitable Foundation. The funding sources for this study had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
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JC and MS conceptualized and designed the study, assisted with data analysis and interpretation, drafted the initial manuscript, and reviewed and revised the manuscript. AC and RG performed statistical analysis and reviewed and revised the manuscript. DA and JJ conceptualized and designed the study, provided support and mentorship, and reviewed and revised the manuscript. PC, MH, SM and AS assisted with the design of the study, data interpretation, and reviewed and revised the manuscript for important intellectual content. All authors approve the final manuscript as submitted and agree to be accountable for all aspects of the work.
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Competing interests
All authors report no real or perceived conflicts of interest that could affect the study design, collection, analysis, and interpretation of data, the writing of the report, or the decision to submit the manuscript for publication. For full disclosure, we provide the additional list of authors’ other funding not directly related to this study. DA consults for and received research/education grants with Baxter, Medtronic, Nuwellis, Bioporto and Seastar. He has patent pending inventions in the area of neonatal nephrology. AS reports receiving grant funding for studies not related to this work, grants NHLBI K23 HL148394, L40 HL148910, and R01 HL146818. MS is supported in part by the Indiana University School of Medicine Physician Scientist Initiative. No other disclosures were reported.
Ethics approval and consent to participate
The Institutional Review Board (IRB) at the University of Alabama at Birmingham approved this collaborative multicenter study, and each center received approval from their respective IRBs for participation. The study design allowed for a waiver of informed consent or parental permission. This study is registered with ClinicalTrials.org, number NCT02443389.
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Chmielewski, J., Chaudhry, P.M., Harer, M.W. et al. Documentation of acute kidney injury at discharge from the neonatal intensive care unit and role of nephrology consultation. J Perinatol 42, 930–936 (2022). https://doi.org/10.1038/s41372-022-01424-3
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DOI: https://doi.org/10.1038/s41372-022-01424-3
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