Application of PECARN rules would significantly decrease CT rates in a Dutch cohort of children with minor traumatic head injuries

The aim of this study was to determine the potential impact of the Pediatric Emergency Care Applied Research Network (PECARN) rules on the CT rate in a large paediatric minor traumatic head injury (MTHI) cohort and compare this with current national Dutch guidelines. This was a planned sub-study of a prospective multicentre observational study that enrolled 1006 children younger than 18 years with MTHI. We calculated the number of recommended CT scans and described trauma-related CT scan abnormalities. The PECARN rules recommended a significantly lower percentage of CT scans in all age categories, namely 101/357 (28.3%) versus 164/357 (45.9%) (p < 0.001) in patients under 2 years of age and 148/623 (23.8%) versus 394/623 (63.2%) (p < 0,001) versus in patients 2 years and older. Conclusion: The projected CT rate can significantly be reduced if the PECARN rules are applied. We therefore advocate that the PECARN guidelines are also implemented in The Netherlands.What is Known:• To guide clinicians whether to perform a CT scan in children with a minor traumatic head injury (MTHI) clinical decision rules has been developed.• The overall CT scan rate in adherence with the Dutch MTHI guidelines is 44%.What is New:• The projected CT rate can significantly be reduced in a Dutch cohort of MTHI if the PECARN rules are applied.• The Dutch national guidelines for MTHI can safely be replaced by the PECARN rules.