Frequency, types and causes of intraventricular haemorrhage in lethal blunt head injuries

H Maxeiner1, Cynthia Schirmer

  • 1Charité - University Medicine of Berlin, Department of Forensic Medicine, Turmstr. 21, D-10559 Berlin, Germany. helmut.maxeiner@charite.de

Insights

Blunt head injuries can cause intraventricular hemorrhage, particularly in severe impacts like traffic accidents. Inner cerebral structure damage, including periventricular injuries, often accompanies these hemorrhages.

Area of Science:

  • Neuropathology
  • Forensic Pathology
  • Trauma Research

Background:

  • Blunt head injuries are a significant cause of mortality.
  • Understanding the patterns of intracranial injury is crucial for forensic classification.
  • Periventricular structures and intraventricular hemorrhages are specific injury types requiring detailed examination.

Purpose of the Study:

  • To analyze autopsy findings of inner cerebral structures and intraventricular hemorrhages in blunt head injury deaths.
  • To correlate the occurrence of these injuries with trauma mechanisms and severity.
  • To investigate the origins and patterns of intraventricular hemorrhages.

Main Methods:

  • Autopsy and neuropathological examination of formalin-fixed brains from 676 blunt head injury cases.
  • Classification of injuries to inner cerebral structures (periventricular, deep white matter, basal ganglia).
  • Analysis of hemorrhage locations and correlation with trauma types and injury patterns.

Main Results:

  • Intraventricular hemorrhage was present in 17.6% of cases (10% distinct/massive).
  • Higher frequency of intraventricular hemorrhage observed in traffic accidents compared to falls.
  • Predominant causes included periventricular injuries (27%) and retrograde expansion of infratentorial lesions (19%).
  • Injuries to inner cerebral structures occurred in 9.1-13.5% (periventricular) and 4.0-5.9% (deep white matter/basal ganglia).

Conclusions:

  • Intraventricular hemorrhage and inner cerebral injuries are typically components of complex, severe blunt head trauma.
  • The severity and type of impact are related to the likelihood of ventricular hemorrhage.
  • Solitary intraventricular hemorrhages or inner cerebral injuries without other clear traumatic findings are rare.

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