Adverse Events in Pediatric Inpatients: The Japan Adverse Event Study

Area of Science:

• Pediatric Medicine
• Patient Safety
• Healthcare Epidemiology

Background:

• Adverse events (AEs) are a significant cause of harm in hospitalized children.
• Epidemiological data on pediatric AEs are limited, particularly outside Western countries.
• Understanding AE incidence and characteristics in diverse healthcare settings is crucial.

Purpose of the Study:

• To investigate the incidence and nature of adverse events (AEs) in pediatric inpatients in Japan.
• To analyze the characteristics, severity, and preventability of AEs across different pediatric age groups.
• To identify factors contributing to AEs in a Japanese tertiary care setting.

Main Methods:

• A retrospective review of medical records for 1126 pediatric inpatients across two tertiary care hospitals in Japan.
• Trained pediatric healthcare professionals identified and categorized potential incidents, including AEs, medical errors, and exclusions.
• AEs were assessed for severity and preventability, with age categorized into six groups and medical care classified into drug, operation, procedure, nursing, management, and judgment.

Main Results:

• A total of 953 AEs were identified among 1126 patients (12,624 patient-days), resulting in an incidence of 76 AEs per 1000 patient-days.
• Preventable AEs constituted 23% of all AEs, with the highest proportion (40%) observed in neonates.
• Judgment and management-related AEs were more frequent and severe, with 43% being life-threatening.

Conclusions:

• Adverse events are prevalent in Japanese pediatric inpatients, with significant variation in preventability and severity based on age and type of medical care.
• Neonates and younger children are particularly vulnerable to preventable AEs.
• Further research is necessary to develop and implement effective strategies for improving pediatric patient safety in Japan.