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Published on: February 10, 2026
Pediatric patients with multi-organ dysfunction syndrome receiving continuous renal replacement therapy
Stuart L Goldstein1, Michael J G Somers, Michelle A Baum
1Department of Pediatrics, Renal Section, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas 77030, USA. stuartg@bcm.tmc.edu
Insights
Fluid overload is a key risk factor for mortality in critically ill children with multi-organ dysfunction syndrome (MODS) requiring continuous renal replacement therapy (CRRT). Early CRRT initiation and inotropic agents are recommended over aggressive fluid administration.
Area of Science:
- Pediatric Critical Care Medicine
- Nephrology
- Intensive Care Medicine
Background:
- Multi-organ dysfunction syndrome (MODS) and acute renal failure (ARF) are less common in children than adults.
- Existing pediatric ARF literature lacks prospective studies, modality stratification, and consistent controls for illness severity.
- This study addresses these gaps by analyzing outcomes in pediatric MODS patients receiving CRRT.
Purpose of the Study:
- To assess the outcomes of pediatric patients with MODS undergoing continuous renal replacement therapy (CRRT).
- To identify factors influencing survival in this vulnerable population.
- To provide evidence-based recommendations for managing pediatric MODS with ARF.
Main Methods:
- A multicenter study involving 120 pediatric patients with MODS who received CRRT.
- Data analysis included 116 patients with complete information.
- Key variables analyzed: Pediatric Risk of Mortality (PRISM 2) score, central venous pressure (CVP), and % fluid overload (%FO) at CRRT initiation.
Main Results:
- Overall survival rate was 51.7%.
- Common causes for CRRT initiation were sepsis (39.2%) and cardiogenic shock (20%).
- Survivors had significantly lower PRISM 2 scores, CVP, and %FO at CRRT initiation compared to nonsurvivors. %FO remained a significant independent predictor of mortality even after controlling for illness severity.
Conclusions:
- Increased fluid administration from PICU admission to CRRT initiation is a potential independent risk factor for mortality in pediatric MODS patients on CRRT.
- Early CRRT initiation and use of inotropic agents are recommended over aggressive fluid administration to maintain blood pressure.
- This study highlights the importance of fluid management in critically ill children with MODS and ARF.
Background:
Critical illness leading to multi-organ dysfunction syndrome (MODS) and associated acute renal failure (ARF) is less common in children compared to adult patients. As a result, many issues plague the pediatric ARF outcome literature, including a relative lack of prospective study, a lack of modality stratification in subject populations and inconsistent controls for patient illness severity in outcome analysis.
Methods:
We now report data from the first multicenter study to assess the outcome of pediatric patients with MODS receiving continuous renal replacement therapy (CRRT). One hundred twenty of 157 Registry patients (63 male/57 female) experienced MODS during their course.
Results:
One hundred sixteen patients had complete data available for analysis. The most common causes leading to CRRT were sepsis (N= 47; 39.2%) and cardiogenic shock (N= 24; 20%). Overall survival was 51.7%. Pediatric Risk of Mortality (PRISM 2) score, central venous pressure (CVP), and% fluid overload (%FO) at CRRT initiation were significantly lower for survivors versus nonsurvivors. Multivariate analysis controlling for severity of illness using PRISM 2 at CRRT initiation revealed that%FO was still significantly lower for survivors versus nonsurvivors (P < 0.05) even for patients receiving both mechanical ventilation and vasoactive pressors. We speculate that increased fluid administration from PICU admission to CRRT initiation is an independent risk factor for mortality in pediatric patients with MODS receiving CRRT.
Conclusion:
We suggest that after initial resuscitative efforts, an increased emphasis should be placed on early initiation of CRRT and inotropic agent use over fluid administration to maintain acceptable blood pressure.
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