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Verification of Usefulness of Pediatric Head Trauma Imaging Protocol Combining Computerized Tomography, Observation
Masahiro Nozawa1, Jun Matsuura1, Kentaro Iwata1
1From the Pediatric Emergency Care and Transport Medicine.
Insights
A new protocol for pediatric head trauma significantly reduced computed tomography (CT) scan rates while maintaining 100% sensitivity and negative predictive value for intracranial injury detection.
Area of Science:
- Pediatric Emergency Medicine
- Radiology
- Clinical Decision Rules
Background:
- Head trauma is common in children, necessitating accurate diagnostic tools.
- Overutilization of imaging in pediatric head trauma can lead to unnecessary radiation exposure and costs.
- Existing clinical decision rules have varying efficacy and CT scan rates.
Purpose of the Study:
- To evaluate a novel protocol for managing pediatric head trauma.
- To assess the protocol's effectiveness in reducing computed tomography (CT) and magnetic resonance imaging (MRI) utilization.
- To compare the protocol's performance against established clinical decision rules (PECARN, CATCH, CHALICE).
Main Methods:
- Prospective observational study of 1137 pediatric patients (0-15 years) with head trauma.
- Investigated CT scan rate and overall imaging examination rate (CT or MRI) of the developed protocol.
- Calculated sensitivity and negative predictive value (NPV) for intracranial injury.
- Compared the protocol with PECARN, CATCH, and CHALICE rules regarding CT scan rate, sensitivity, and NPV.
Main Results:
- The protocol achieved a CT scan rate of 7.9% and an imaging examination rate of 12.2%.
- Sensitivity and NPV for intracranial injury were 100% for the developed protocol.
- The protocol demonstrated lower CT scan rates compared to PECARN, CATCH, and CHALICE, while maintaining high sensitivity and NPV.
Conclusions:
- The developed protocol, integrating CT, observation, and MRI, is effective for pediatric head injury management.
- This protocol offers a valuable tool for reducing unnecessary imaging in children with head trauma.
- The findings support the clinical utility of the new protocol in pediatric head injury cases.
Methods:
This prospective observational study conducted in our hospital between October 2016 and September 2019 included 1946 patients aged 0 to 15 years with head trauma, of whom 1137 were analyzed. Computed tomography scan rate and imaging examination (CT or MRI) rate of our protocol were investigated. Sensitivity and negative predictive value (NPV) were calculated. We also compared our protocol and other clinical decision rules with respect to CT scan rate, sensitivity, and NPV in the same cohort and outcomes.
Results:
The CT scan rate of our protocol was 7.9%, and the imaging examination rate, including MRI, was 12.2%. When the outcome was set to intracranial injury, the sensitivity and NPV of our protocol were each 100%. The CT scan rates in each cohort were 14.5% for PECARN (8.1% for our protocol), 34.7% for CATCH (23.2% for ours), and 13.6% for CHALICE (7.9% for ours). The sensitivity and NPV in each cohort were 100% and 100% for PECARN (92.3% and 100% for ours), 64.7% and 92.6% for CATCH (100% and 100% for ours), and 83.9% and 99.5% for CHALICE (100% and 100% for ours), respectively.
Conclusions:
The protocol we created by combining CT, observation unit, and MRI was considered to be useful for practice in pediatric head injury cases.
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