Indications for computed tomography in children with blunt abdominal trauma

Area of Science:

• Pediatric Traumatology
• Emergency Medicine
• Radiology

Background:

• Blunt trauma in children can lead to intra-abdominal injuries, necessitating accurate risk assessment for appropriate management.
• Clinical variables are crucial for stratifying pediatric patients into high- and low-risk categories for these injuries.
• Computed tomography (CT) is a key diagnostic tool, but its availability may be limited.

Purpose of the Study:

• To identify clinical variables that predict intra-abdominal injury in children following blunt trauma.
• To develop a risk stratification model for assigning children to high- and low-risk categories.
• To provide adjuncts for clinical judgment in triage, especially when CT is unavailable.

Main Methods:

• Prospective enrollment of 600 children examined with CT after blunt trauma.
• Analysis of complete data sets from 375 children using stepwise logistic regression.
• Identification of predictor variables associated with the presence of abdominal injury.

Main Results:

• 174 children had CT-detected abdominal injury, with 95 classified as significant.
• Predictors of higher injury risk included: >3 clinical indications (OR 4.60), gross hematuria (OR 5.80), lap belt injury (OR 12.2), assault/abuse (OR 5.08), abdominal tenderness (OR 2.73), and Trauma Score ≤12 (OR 2.27).
• Asymptomatic hematuria or neurologic impairment without abdominal findings did not correlate with abnormal CT findings.

Conclusions:

• Specific clinical variables effectively identify children at increased risk for intra-abdominal injury post-blunt trauma.
• These findings support clinical judgment in triage, particularly in resource-limited settings or when managing multiple injuries.
• The identified indicators can aid in optimizing the use of CT scans for pediatric blunt trauma patients.