Evaluation of pediatric intensive care

Area of Science:

• Pediatric Critical Care Medicine
• Healthcare Quality Improvement
• Patient Outcomes Research

Background:

• Pediatric Intensive Care Units (PICUs) manage critically ill children.
• Assessing illness severity and care intensity is crucial for patient management.
• Clinical Classification System (CCS) Classes III and IV represent high-acuity patients.

Purpose of the Study:

• To evaluate illness severity and quantity of care in critically ill pediatric patients.
• To compare survivors and nonsurvivors across different clinical services.
• To explore the utility of the Physiologic Stability Index (PSI)/Therapeutic Intervention Scoring System (TISS) ratio and regression slopes.

Main Methods:

• Retrospective analysis of 294 PICU patients (CCS Classes III and IV).
• Measured illness severity using the Physiologic Stability Index (PSI).
• Measured quantity of care using the Therapeutic Intervention Scoring System (TISS).
• Analyzed 7-day regression slopes and PSI/TISS ratios.

Main Results:

• Nonsurvivors exhibited significantly higher PSI and TISS scores (p < .01) than survivors.
• Medical patients had the highest PSI; cardiovascular surgery patients had the highest TISS.
• Cardiovascular surgery nonsurvivors showed unique trends: increasing stability with stable care.
• PSI/TISS ratios differed between services and between survivors/nonsurvivors, revealing insights not seen with PSI/TISS alone.

Conclusions:

• Illness severity and care quantity are significantly higher in nonsurvivors.
• The PSI/TISS ratio and regression slope analysis provide a more nuanced understanding of patient trajectories than individual scores.
• These metrics may aid in optimizing care and predicting outcomes in pediatric critical care.