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Related Experiment Video

Updated: Apr 4, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
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Hyperperfusion syndrome after aneurysm surgery: a case report.

Tomomichi Kayahara1, Ririko Takeda2, Yuichiro Kikkawa2

  • 1Department of Cerebrovascular Surgery, International Medical Center, Saitama Medical University, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan. goyanorasetsu@gmail.com.

Acta Neurochirurgica
|September 4, 2015
PubMed
Summary

A rare case of sensory aphasia after cerebral aneurysm surgery resolved spontaneously. This event was linked to increased distal blood flow and post-ischemic reperfusion following the procedure.

Keywords:
ClippingHyperperfusionLarge cerebral aneurysmPostischemic reperfusion

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Area of Science:

  • Neurology
  • Neurosurgery
  • Vascular Imaging

Background:

  • Cerebral aneurysms pose significant neurological risks.
  • Surgical intervention, such as aneurysm clipping, is a common treatment.
  • Potential complications include altered cerebral blood flow dynamics.

Observation:

  • A 74-year-old woman developed sensory aphasia and hypertension post-aneurysm clipping.
  • Imaging revealed hyperperfusion in a distal middle cerebral artery territory.
  • Symptoms resolved gradually, with no residual neurological deficits.

Findings:

  • The patient's condition was associated with increased distal blood flow.
  • Post-ischemic reperfusion following temporary parent artery occlusion is implicated.
  • This suggests a rare complication related to cerebral aneurysm surgery.

Implications:

  • Understanding hyperperfusion syndromes is crucial in neurovascular surgery.
  • This case highlights the importance of monitoring cerebral blood flow post-intervention.
  • Further research into managing such rare post-operative complications is warranted.