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[A postmortem view on "pure" subdural hemorrhages in infants and toddlers]
1Freie Universität Berlin, FB Humanmedizin, UK Benjamin Franklin, Institut für Rechtsmedizin, Berlin. maxrmed@zedat.fu-berlin.deq
Insights
Distinguishing between accidental and abusive subdural hemorrhages in infants is crucial. This study highlights specific injury patterns, suggesting many severe cases result from abuse, not minor accidents.
Area of Science:
- Forensic pathology
- Pediatric neurology
- Child abuse research
Context:
- Controversy exists regarding the causes of infantile subdural hemorrhages, with debate over child abuse versus accidental injury.
- Previous research has presented series of accidental cases, raising concerns about overdiagnosis of shaken baby syndrome.
- This study reviews autopsy data of lethal head injuries in infants and toddlers over two decades.
Purpose:
- To analyze autopsy findings in lethal head injuries of infants and toddlers.
- To differentiate between injury patterns indicative of abuse versus accidental trauma.
- To clarify the characteristics of subdural hemorrhages in relation to trauma severity and clinical presentation.
Summary:
- Seventeen cases exhibited no significant trauma history, presented with apnea or coma, lacked skull fractures, and showed minimal subdural bleeding despite bridging vein ruptures.
- These cases, predominantly in infants, often indicated abuse and were associated with severe cerebral alterations and increased intracranial pressure.
- A distinction is made between subdural hemorrhages from moderate head injury with good prognosis and those from severe, often abusive, events with poor outcomes.
Impact:
- Provides critical insights for differentiating abusive head trauma from accidental injuries in infants.
- Highlights the importance of considering severe underlying cerebral injury beyond visible subdural bleeding.
- Aids clinicians and forensic pathologists in accurate diagnosis and case evaluation, potentially reducing misdiagnosis of shaken baby syndrome.
Abstract:
In the last years, the discussion concerning the causes of infantile subdural hemorrhages became controversial. Many authors still suppose that child abuse is the predominant cause of such cases. On the other hand, reports presenting series of accidental cases were published, and the fear of an overdiagnosis of the shaken baby syndrome has been expressed. Our autopsy material concerning all lethal head injuries of infants and toddlers from 2 decades was reviewed. 17 of these 64 cases were characterized by the following: history of no trauma or only an insignificant event; children found dead or apnoic or in coma; no skull fractures; no focal brain injury; ruptures of several bridging veins but only minimal subdural bleeding. 11 victims were infants (1st year of life) and either 3 were 2 years resp. 3 - 6 years old; 50 % off all lethal head injuries of infants were of this type, while only 25 % resp. 10 % of the following age groups. None of these 17 cases was a result of a minor accident witnessed by unrelated persons. Abuse could be ascertained with a high degree of probability in most cases and remained quite likely in the others. Two different types of subdural hemorrhages should be kept from another: a) patients suffering a moderate head injury from a minor accident which results in a subdural bleeding (from a small intracranial lesion) often do not deteriorate soon after the impact, develop a hemorrhage of significant volume, respond well to therapy and have a good prognosis. b) cases with a history of no or only of an insignificant trauma, infants dead or nearly dead on clinical presentation, often a poor outcome in cases of survival. There is typically no significant subdural bleeding despite multiple bridging vein ruptures in the majority of these cases: the subdural hemorrhage is here only a visible sign of a much more serious and general cerebral alteration, resulting in a rapid increase of intracranial pressure (often complicated by respiratory arrest) which prevents a signifant bleeding into the subdural space. This combination of findings is typically found in victims of massive events (car occupants in high-velocity crashes) and not compatible with a supposition of a minor fall causing this.