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Updated: May 8, 2026

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Published on: March 26, 2016
The prospective pediatric continuous renal replacement therapy (ppCRRT) registry: a critical appraisal
Scott M Sutherland1, Stuart L Goldstein, Steven R Alexander
1Department of Pediatrics, Division of Nephrology, Stanford University Medical Center, 300 Pasteur Drive, Room G-306, Stanford, CA, 94035, USA, suthersm@stanford.edu.
Insights
The Prospective Pediatric Continuous Renal Replacement Therapy (CRRT) Registry offers insights into managing acute kidney injury in children. This largest cohort study highlights past findings and identifies future research directions for pediatric CRRT.
Area of Science:
- Pediatric Nephrology
- Critical Care Medicine
- Renal Replacement Therapy
Background:
- Continuous renal replacement therapy (CRRT) is vital for managing acute kidney injury (AKI) and fluid overload in critically ill children.
- The Prospective Pediatric CRRT (ppCRRT) Registry, established in 2001, is the largest cohort of pediatric CRRT patients in the United States.
Purpose of the Study:
- To describe the ppCRRT Registry's demographics and epidemiology.
- To detail improvements in technical aspects of pediatric CRRT.
- To identify risk factors affecting survival in children undergoing CRRT.
Main Methods:
- Data collection from 13 pediatric centers in the United States.
- Analysis of pediatric CRRT demographics, epidemiology, and outcomes.
- Review of registry design, findings, lessons learned, and limitations.
Main Results:
- The ppCRRT Registry has provided significant data on pediatric CRRT practices and outcomes.
- Established understanding of patient populations and epidemiological trends.
- Identified areas for technical improvement and risk factor analysis.
Conclusions:
- The ppCRRT Registry has been instrumental in advancing the understanding and practice of pediatric CRRT.
- Despite successes, unanswered questions and new research avenues exist.
- The registry serves as a foundation for future pediatric CRRT research and methodology development.
Abstract:
Continuous renal replacement therapy (CRRT), which provides gradual, predictable clearance and fluid removal, is commonly used to manage acute kidney injury (AKI) and fluid overload in critically ill children. The Prospective Pediatric CRRT (ppCRRT) Registry, founded in 2001 and comprising 13 pediatric centers in the United States, represents the largest cohort of children receiving CRRT to date. Data from the ppCRRT has been used to describe pediatric CRRT demographics and epidemiology, improve technical aspects of CRRT provision for children, and identify novel or underappreciated risk factors affecting survival. Whereas the registry has successfully answered many questions, a number of questions remain unanswered and new ones have arisen. This article describes the ppCRRT Registry, including its major findings, the lessons learned, and the limitations inherent in its design. Additionally, using the registry as a framework, areas of future study are identified and potential methodologies examined.
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