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Updated: Dec 22, 2025
Nephrotoxin Microinjection in Zebrafish to Model Acute Kidney Injury
Published on: July 17, 2016
Long-term complications of acute kidney injury in children
Asaf Lebel1, Chia W Teoh, Michael Zappitelli
1Division of Nephrology, Department of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada.
Insights
Pediatric acute kidney injury (AKI) increases the risk of long-term kidney complications like chronic kidney disease. Improved post-AKI monitoring is crucial for managing these risks in children.
Area of Science:
- Nephrology
- Pediatric Nephrology
- Renal Medicine
Background:
- Acute kidney injury (AKI) in children is increasingly recognized as a risk factor for long-term renal and cardiovascular complications.
- Despite this link, many pediatric AKI survivors do not receive adequate follow-up care after hospital discharge.
- Current understanding of the mechanisms driving AKI progression to chronic kidney disease (CKD) is evolving.
Purpose of the Study:
- To review the current evidence linking pediatric AKI to long-term kidney complications.
- To summarize the rationale and propose an approach for monitoring children after AKI.
- To highlight the need for improved post-AKI surveillance strategies.
Main Methods:
- This review synthesizes recent evidence on the mechanisms and long-term outcomes of pediatric AKI.
- It examines the association between AKI and subsequent development of CKD and hypertension.
- The review discusses the cellular and molecular pathways involved in AKI progression.
Main Results:
- Pediatric AKI is associated with increased risk of CKD and hypertension, contributing to cardiovascular risk.
- Mechanisms include maladaptive tubular regeneration, inflammation, fibrosis, and glomerulosclerosis.
- A significant gap exists in the follow-up care for pediatric AKI survivors.
Conclusions:
- Children with a history of AKI are at higher risk for developing chronic kidney disease and other renal complications.
- Implementing structured follow-up programs and monitoring protocols for pediatric AKI survivors is essential.
- Enhanced post-AKI care can mitigate long-term health risks and improve patient outcomes.
Purpose Of Review:
The current review will describe the current evidence and mechanisms of acute kidney injury (AKI) as a risk factor for long-term kidney complications, summarize the rationale for AKI follow-up and present an approach to monitoring children with AKI. Despite emerging evidence linking AKI with risk for long-term kidney and cardiovascular outcomes, many children who develop AKI are not followed for kidney disease development after hospital discharge. Better understanding of long-term complications after AKI and practical algorithms for follow-up will hopefully increase the rate and quality of post-AKI monitoring.
Recent Findings:
Recent evidence shows that pediatric AKI is associated with long-term renal outcomes such as chronic kidney disease (CKD) and hypertension, both known to increase cardiovascular risk. The mechanism of AKI progression to CKD involves maladaptive regeneration of tubular epithelial and endothelial cells, inflammation, fibrosis and glomerulosclerosis. Many AKI survivors are not followed, and no guidelines for pediatric AKI follow-up have been published.
Summary:
Children who had AKI are at increased risk of long-term renal complications but many of them are not monitored for these complications. Recognizing long-term outcomes post-AKI and integration of follow-up programs may have a long-lasting positive impact on patient health.
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