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Published on: November 3, 2023
Isolated head injury is a cause of shock in pediatric trauma patients
Alison Gardner1, Katherine A Poehling, Chadwick D Miller
1Departments of Pediatrics, Wake Forest Health Sciences, Winston-Salem, NC 27157, USA. agardner@wakehealth.edu
Insights
Severe shock in pediatric trauma patients can result from isolated head injuries, not just hemorrhage. This is especially common in children under five years old, challenging current trauma resuscitation assumptions.
Area of Science:
- Pediatric Emergency Medicine
- Trauma Surgery
- Pediatric Critical Care
Background:
- Current trauma resuscitation protocols often assume hemorrhage is the cause of shock.
- This assumption may not accurately reflect the etiology of shock in all pediatric trauma cases.
Purpose of the Study:
- To determine the proportion of pediatric trauma patients in severe shock who present with isolated head injury versus hemorrhagic injury.
- To investigate the role of head injury as a cause of severe shock in children.
Main Methods:
- Retrospective review of pediatric trauma patients (0-15 years) over a 5-year period.
- Severe shock defined by elevated blood lactate and low blood pressure for age.
- Injury classification using International Classification of Diseases, Ninth Revision codes.
Main Results:
- 31 (5%) of 680 patients had severe shock.
- Isolated head injury accounted for 29% of severe shock cases in pediatric trauma patients.
- Head injury was the cause of shock in 50% of children under 5 years old.
Conclusions:
- Isolated head injury is a significant cause of severe shock in pediatric trauma patients, accounting for 29% of cases.
- Head injury is a particularly important cause of shock in younger children (under 5 years).
- Findings suggest a need to consider non-hemorrhagic causes like head injury in pediatric shock resuscitation.
Objectives:
Current trauma resuscitation protocols from the American College of Surgeons, Committee on Trauma, recommend intravascular volume expansion to treat shock after major trauma, assuming that hemorrhage is present. However, this assumption may not be correct. The purpose of this study was to identify the proportion of children with severe shock after trauma presenting with isolated head injury versus hemorrhagic injury.
Methods:
A retrospective review of all pediatric trauma patients (aged 0-15 years) was conducted over a 5-year period. Severe shock was defined as the presence of both an elevated blood lactate level and low blood pressure for age. Traumatic injuries were classified as hemorrhagic injuries, head injuries, combined hemorrhagic and head injuries, or other injuries, by analyzing International Classification of Diseases, Ninth Revision diagnostic codes.
Results:
A total of 31 (5%) of 680 pediatric trauma patients presented with severe shock. Among these 31 pediatric trauma patients, 9 (29%) had isolated head injury. Isolated head injury among children with shock was most frequently observed among children younger than 5 years (50%), and a decreased trend was noted with increasing age (23% for children 5-11 years and 0% for children 12-15 years [P = 0.03, Cochran-Armitage exact trend test]).
Conclusions:
Isolated head injury was observed in 29% of children 0 to 15 years of age with severe shock after trauma and in 50% of children younger than 5 years. Head injury is an important cause of severe shock in pediatric trauma, particularly among young children.
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