Characteristics of Intracranial Injuries in Pediatric Patients Following Blunt Head Trauma

Thomas E Akie, Malkeet Gupta, Robert M Rodriguez1

  • 1Department of Emergency Medicine, UCSF School of Medicine, San Francisco, CA.

PubMed

Insights

Serious injuries from blunt head trauma are rare in children, though injury patterns and mechanisms vary by age. Teenagers showed higher rates of significant injury and intervention, with temporal and frontal regions most affected.

Area of Science:

  • Pediatric Emergency Medicine
  • Neurotrauma
  • Radiology

Background:

  • Pediatric head trauma is a common emergency department presentation.
  • Limited data exists on specific injury patterns in children with head trauma.

Purpose of the Study:

  • To evaluate head injury patterns in pediatric patients with blunt head trauma.
  • To determine the prevalence of these injuries across different age groups.

Main Methods:

  • Secondary analysis of the NEXUS II Head CT validation study.
  • Included consecutive pediatric patients with blunt head trauma (2006-2015).
  • Analyzed injury frequencies and severity by age group using radiologist reports.

Main Results:

  • 12.6% of 1018 pediatric patients had injuries on CT scans.
  • Subarachnoid hemorrhage and subdural hematoma were most common.
  • Teenagers had the highest rates of significant injury (50%) and intervention (30%).
  • Falls were the most common injury mechanism (24.7%).

Conclusions:

  • Serious injuries requiring intervention are uncommon in pediatric blunt head trauma.
  • Injury mechanisms, types, and intervention rates differ across pediatric age groups.
Abstract

Related Concept Videos

Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
Traumatic Brain Injury l: Introduction01:28

Traumatic Brain Injury l: Introduction

DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...
Spinal Cord Injury ll: Pathophysiology01:14

Spinal Cord Injury ll: Pathophysiology

Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
Increased Intracranial Pressure l: Introduction01:14

Increased Intracranial Pressure l: Introduction

Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...
Increased Intracranial Pressure ll: Pathophysiology01:29

Increased Intracranial Pressure ll: Pathophysiology

Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins with...
Secondary Spinal Cord Injury llI: Pathophysiology01:25

Secondary Spinal Cord Injury llI: Pathophysiology

Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...