Prognosis in critically ill children requiring continuous renal replacement therapy

Area of Science:

• Pediatric Nephrology
• Critical Care Medicine
• Pediatric Intensive Care

Background:

• Continuous renal replacement therapy (CRRT) is a life-saving intervention for critically ill children with acute kidney injury.
• Identifying prognostic factors in this vulnerable population is crucial for optimizing treatment and resource allocation.

Purpose of the Study:

• To analyze prognostic factors associated with mortality in critically ill children requiring CRRT.
• To evaluate the predictive accuracy of established scoring systems (PIM, PRISM) in this specific patient group.

Main Methods:

• Observational prospective study involving 53 critically ill children undergoing CRRT.
• Analysis of clinical parameters including Pediatric Index of Mortality (PIM), Pediatric Risk of Mortality Score (PRISM), multi-organ failure score, serum lactate, blood pressure, and vasoactive drug use.

Main Results:

• Overall mortality was 32.1%, with multi-organ failure being the leading cause of death (59%).
• Nonsurvivors exhibited significantly lower blood pressure, higher requirements for vasoactive drugs (dopamine, epinephrine), elevated PRISM and PIM scores, higher serum lactate, and more organ failures.
• PRISM and PIM scores underestimated mortality risk. Mean blood pressure <55 mmHg combined with epinephrine dose >0.6 µg/kg/min predicted mortality in 76% of cases.

Conclusions:

• Prognosis in pediatric CRRT patients is primarily determined by the severity of their clinical condition at therapy initiation, particularly hemodynamic status.
• Hemodynamic parameters, specifically mean blood pressure and epinephrine dosage, are critical predictors of mortality in this population.