Computed tomography of the head in children with mild traumatic brain injury

Area of Science:

• Pediatric Emergency Medicine
• Neurotrauma
• Diagnostic Imaging

Background:

• Pediatric Emergency Care Applied Research Network (PECARN) guidelines offer high negative predictive value for clinically important traumatic brain injury (ciTBI) in children with mild head injuries (GCS 14-15).
• Retrospective application of these guidelines can assess their impact on head CT utilization and ciTBI detection rates.

Purpose of the Study:

• To retrospectively evaluate the PECARN guidelines' impact on head CT rates and ciTBI detection in pediatric blunt trauma patients.
• To determine if adherence to PECARN criteria can reduce unnecessary head CT scans while maintaining diagnostic accuracy for ciTBI.

Main Methods:

• Review of pediatric patient records (GCS 14-15) who underwent head CT for suspected TBI after blunt trauma (2008-2010).
• Retrospective application of PECARN criteria to assess guideline adherence and its correlation with CT findings and patient outcomes.
• Analysis of CT results, identification of ciTBI, and surgical intervention rates.

Main Results:

• Of 493 children, 91% had negative head CTs. Applying PECARN criteria, 36% met all criteria but had negative CTs.
• The remaining 64% missed at least one PECARN criterion; 15% of these had positive CT findings, with 0.6% requiring surgery.
• No false-negative cases for ciTBI were identified, confirming a 100% negative predictive value.

Conclusions:

• Adherence to PECARN guidelines effectively identifies pediatric patients with mild head injuries who do not require head CT.
• Implementing PECARN criteria can reduce unnecessary CT scans, thereby increasing the diagnostic yield for ciTBI in the subgroup of patients who do not meet all criteria.
• The PECARN guidelines demonstrate a 100% negative predictive value for ciTBI in this pediatric population.