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A Murine Model of Subarachnoid Hemorrhage
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Cerebral perfusion changes in acute subdural hematoma.

J Winkler1, G S Piedade2,3, C Rubbert4

  • 1Department of Neurosurgery, Heinrich-Heine-University, Düsseldorf, Germany.

Acta Neurochirurgica
|July 17, 2023
PubMed
Summary
This summary is machine-generated.

Acute subdural hematoma (aSDH) significantly impacts cerebral perfusion, particularly elevating time to maximum (Tmax) in affected hemispheres. This finding in traumatic brain injury patients may influence surgical decisions.

Keywords:
Acute subdural hematomaCT perfusionCerebral perfusionTraumatic brain injury

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Area of Science:

  • Neurosurgery
  • Radiology
  • Trauma Care

Background:

  • Acute subdural hematoma (aSDH) is a severe traumatic brain injury complication with high mortality.
  • Rapid volume shifts and mass effect in aSDH compromise cerebral perfusion.
  • Early detection and quantification of perfusion changes are crucial for patient outcomes.

Purpose of the Study:

  • To quantify cerebral perfusion changes in patients with acute subdural hematoma using CT perfusion imaging.
  • To investigate the impact of aSDH on hemodynamic parameters in the affected brain regions.
  • To correlate perfusion changes with clinical data and inform therapeutic strategies.

Main Methods:

  • Retrospective analysis of 54 traumatic aSDH patients.
  • Evaluation of CT perfusion imaging (CTP) parameters, including Tmax, cerebral blood flow (CBF), cerebral blood volume (CBV), and mean transit time (MTT).
  • Analysis of cortical perfusion in affected and unaffected hemispheres, including specific regions like the area below the hematoma (ABH).

Main Results:

  • A significant elevation in Tmax was observed in the affected whole hemisphere (4.0s vs. 3.3s) and the area below the hematoma (ABH) (3.8s vs. 3.1s) compared to unaffected regions.
  • No significant differences were found in CBF, CBV, or MTT between affected and unaffected areas.
  • Tmax elevation was specifically noted in the cortical area underlying the aSDH.

Conclusions:

  • Significant elevation of Tmax in the cortical area beneath acute subdural hematomas indicates altered cerebral perfusion.
  • These perfusion changes, particularly elevated Tmax, warrant further investigation into their pathophysiological basis.
  • Understanding these perfusion dynamics is essential for guiding immediate surgical decisions and subsequent management in aSDH patients.