PN Administration in Critically Ill Children in Different Phases of the Stress Response

Area of Science:

• Pediatric critical care medicine
• Clinical nutrition
• Metabolic response in critical illness

Background:

• Nutritional support is crucial for critically ill children, but the disease phase dictates its application.
• Acute critical illness triggers severe catabolism, which current nutritional support cannot prevent.
• The Pediatric 'Early versus Late Parenteral Nutrition' (PEPaNIC) trial investigated optimal timing for nutritional interventions.

Purpose of the Study:

• To evaluate the impact of withholding supplemental parenteral nutrition (PN) during the initial week of critical illness in children.
• To assess the effects of this strategy on infection rates, hospital length of stay, and neurocognitive outcomes.
• To inform international guidelines on nutritional support for pediatric critical care.

Main Methods:

• The study involved critically ill children requiring nutritional support.
• It compared outcomes between groups receiving early versus delayed supplemental parenteral nutrition.
• Long-term follow-up assessments were conducted at 2 and 4 years post-discharge.

Main Results:

• Withholding supplemental PN for the first week, when enteral nutrition was insufficient, reduced infections.
• This strategy led to shorter stays in the pediatric intensive care unit (PICU) and overall hospital duration.
• Long-term follow-up revealed improved neurocognitive outcomes in children who had PN withheld initially.

Conclusions:

• Delaying supplemental parenteral nutrition in the first week of pediatric critical illness is beneficial.
• This approach improves clinical outcomes and neurocognitive development in critically ill children.
• Current guidelines should consider withholding parenteral macronutrients while providing micronutrients during the initial phase of critical illness.