title: Risks of acute traumatic intracranial haematoma in children and adults: implications for managing head injuries.
abstract: OBJECTIVE
  To determine the factors influencing the risk of an acute traumatic intracranial haematoma in children and adults with a recent head injury.
  
  
  METHODS
  Prospective study of incidence of risk factors in samples of patients attending accident and emergency departments and in all patients having an acute traumatic intracranial haematoma evacuated in one regional neurosurgical unit during 11 years.
  
  
  METHODS
  Accident and emergency departments in Scotland or Teesside and regional neurosurgical centre in Glasgow.
  
  
  METHODS
  8406 Adults and children (less than or equal to 14 years) who attended accident and emergency departments and 1007 consecutive patients who had an operation for an acute traumatic intracranial haematoma. Data were complete in 8366 and 960 patients respectively.
  
  
  RESULTS
  Overall, children were less at risk than adults (one in 2100 v one in 348 respectively). In both age groups the presence of a skull fracture and changes in conscious level permitted identification of subgroups of patients with widely differing degrees of risk. In children the absolute risk ranged from one in almost 13,000 without a fracture or altered conscious level to one in 12 for a child in a coma and with a fracture; the pattern was similar in adults, the risks in corresponding groups ranging from one in almost 7900 to one in four.
  
  
  CONCLUSIONS
  Although children attending hospital after a head injury have a lower overall risk of a traumatic haematoma, the main indicators of risk, a skull fracture and conscious level, are the same as in adults, and the pattern of their combined effect is similar. Guidelines for managing adults with recent head injury may therefore be applied safely to children; with the increasing provision of facilities for computed tomography they should be revised to ensure early scanning of more patients with head injury.
authors.affiliation: University Department of Neurosurgery, Southern General Hospital, Glasgow.
authors.forename: G M
authors.initials: GM
authors.lastname: Teasdale
authors.forename: G
authors.initials: G
authors.lastname: Murray
authors.forename: E
authors.initials: E
authors.lastname: Anderson
authors.forename: A D
authors.initials: AD
authors.lastname: Mendelow
authors.forename: R
authors.initials: R
authors.lastname: MacMillan
authors.forename: B
authors.initials: B
authors.lastname: Jennett
authors.forename: M
authors.initials: M
authors.lastname: Brookes
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D002543:Cerebral Hemorrhage / Q000209:etiology* / Q000523:psychology; D002648:Child; D002675:Child, Preschool; D003243:Consciousness; D005260:Female; D006406:Hematoma / Q000209:etiology* / Q000523:psychology; D006801:Humans; D008297:Male; D011446:Prospective Studies; D012307:Risk Factors; D012606:Scotland; D012737:Sex Factors; D012887:Skull Fractures / Q000150:complications* / Q000523:psychology