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Navigating Therapeutic Plasma Exchange in Critically Ill Children: A Retrospective Review of Indications, Timing,
Siddannagoud Salatogi1, Sathwik Gangireddy1, Manas R Sahoo2
1Department of Pediatrics, All-India Institute of Medical Sciences (AIIMS), Raipur, India.
Insights
Membrane-based therapeutic plasma exchange (mTPE) is a safe option for critically ill children, with over 60% recovering. Early intervention is key, especially for acute liver failure, to improve outcomes in pediatric intensive care units (PICUs).
Area of Science:
- Pediatric Intensive Care
- Renal and Hepatic Diseases
- Apheresis Techniques
Background:
- Critically ill children often require advanced therapies.
- Membrane-based therapeutic plasma exchange (mTPE) is an apheresis technique used in intensive care settings.
- Understanding mTPE's role in pediatric intensive care units (PICUs) is crucial.
Purpose of the Study:
- To review indications, timing, outcomes, and complications of mTPE in critically ill children.
- To identify factors influencing mortality in patients undergoing mTPE.
- To assess the effectiveness of mTPE in a pediatric intensive care unit (PICU) setting.
Main Methods:
- Retrospective observational study.
- Analysis of 106 pediatric patients (1 month to 18 years) undergoing mTPE from January 2022 to December 2024.
- Logistic regression analysis to identify predictors of mortality.
Main Results:
- Renal and hepatic diseases were the most common indications for mTPE.
- Overall recovery and discharge rate was 61.3%.
- Complications occurred in 35.8% of patients.
- Fluid-refractory shock, high PRISM-3 scores, and concurrent CRRT predicted mortality.
- For liver disease patients, timely mTPE initiation improved survival.
Conclusions:
- Membrane-based therapeutic plasma exchange (mTPE) is a safe and feasible adjunctive therapy for critically ill children.
- Outcomes of mTPE are variable and depend on the underlying condition and intervention timing.
- Early mTPE is particularly important for acute liver failure in pediatric intensive care.
Abstract:
To retrospectively review the indications, timing, outcomes, and complications of membrane-based therapeutic plasma exchange (mTPE) in critically ill children at a single-center pediatric intensive care unit (PICU). Retrospective observational study. A tertiary-care PICU at All-India Institute of Medical Sciences (AIIMS), Raipur. A total of 106 patients aged 1 month to 18 years who underwent mTPE between January 2022 and December 2024. Patients had a median age of 144 months (IQR: 13-216). Renal and hepatic diseases were the most common indications. Overall, 61.3% of patients recovered and were discharged. Complications (inclusive of minor and line-related events) were observed in 35.8% of patients. Logistic regression analysis identified fluid-refractory shock at admission (p < 0.001), elevated Pediatric Risk of Mortality (PRISM-3) scores (p = 0.007), and concurrent continuous renal replacement therapy (CRRT) (p = 0.016) as statistically significant predictors of mortality. In the subgroup of patients with liver disease, time to mTPE initiation was an independent, significant predictor of mortality (p = 0.013). Membrane-based therapeutic plasma exchange is a safe and feasible adjunct therapy in critically ill children. While mTPE is most effective for conditions classified as American Society for Apheresis (ASFA) category I, its outcomes are highly variable and are significantly influenced by the underlying condition and the timing of the intervention, particularly for acute liver failure.
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