Acute mechanical ventilation: an index of the absolute need for pediatric intensive care unit beds

Area of Science:

• Pediatric critical care medicine
• Respiratory therapy
• Healthcare resource management

Background:

• Acute mechanical ventilation (MV) is a critical intervention for pediatric intensive care unit (PICU) admissions.
• While only 28% of PICU patients required acute MV over an 8-year period, these patients accounted for 52.5% of total patient days, highlighting their significant resource utilization.
• Transport admissions showed a higher likelihood of requiring acute MV at 40.4%.

Purpose of the Study:

• To analyze the characteristics and resource consumption of pediatric patients requiring acute mechanical ventilation.
• To identify subgroups of MV patients with significant differences in intensive care duration.
• To estimate the daily PICU bed occupancy by acute MV patients and compare it to overall PICU bed utilization.

Main Methods:

• Retrospective analysis of pediatric intensive care unit (PICU) patient data over an 8-year period.
• Comparison of median intensive care duration across different patient subgroups (age, medical vs. perioperative, cardiac surgery vs. other perioperative).
• Calculation of PICU bed occupancy rates per capita for acute MV patients and total PICU patients.
• Development of regression models to predict acute MV census based on subgroup admissions.

Main Results:

• Significant differences in median intensive care duration were observed: younger children (<2 years) stayed longer (5 days) than older children (4 days); medical patients (5 days) stayed longer than perioperative patients (3 days), with cardiac surgery patients (3 days) having the shortest duration among perioperative cases.
• Acute MV patients occupied an average of 3.79 PICU beds per million general population (1.39 per 100,000 children).
• Total PICU bed occupancy was twice that needed for acute MV patients alone (7.54 beds per million general population).
• Regression equations accurately predicted annual variability in acute MV census.

Conclusions:

• Acute mechanical ventilation represents a substantial driver of pediatric intensive care unit resource utilization.
• Patient age, medical versus surgical status, and specific surgical type significantly influence the duration of mechanical ventilation and PICU stay.
• Accurate prediction of acute MV census is possible, aiding in PICU resource planning and management.