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[Traumatic posterior fossa hematoma].

T Hamasaki1, T Yamaki, E Yoshino

  • 1Department of Neurosurgery, Saisei-kai Shiga-ken Hospital, Japan.

No to Shinkei = Brain and Nerve
|November 1, 1987
PubMed
Summary
This summary is machine-generated.

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Traumatic posterior fossa hematomas are increasingly reported. Acute epidural hematomas offer excellent prognosis with surgery, while subdural hematomas with cerebellar contusion have a poor outcome.

Area of Science:

  • Neurosurgery
  • Trauma Surgery

Background:

  • Traumatic posterior fossa hematomas were historically rare but are now more frequently diagnosed due to CT scanner prevalence.
  • This study reviews nine cases of traumatic posterior fossa hematoma.

Observation:

  • Cases were categorized into acute epidural hematoma (n=5), acute subdural hematoma with cerebellar contusion (n=3), and a mixed type (n=1).
  • All patients sustained occipital region impact and had occipital bone fractures.
  • Acute epidural hematomas had excellent prognoses, whereas acute subdural hematomas with cerebellar contusion resulted in poor outcomes, with all patients dying despite surgical intervention in some cases.

Findings:

  • The severity of impact in subdural hematoma cases suggests direct cerebellar injury from occipital bone deformation.
  • Posterior fossa hematomas can rapidly cause brainstem compression and acute hydrocephalus, leading to sudden deterioration of consciousness and respiration.

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Implications:

  • Prompt surgical intervention is crucial for acute epidural hematomas, leading to good patient outcomes.
  • Fulminant cases of posterior fossa epidural hematoma, particularly those involving sinus tears, may be fatal before diagnosis and treatment can be initiated.