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Related Experiment Videos

Intrameatal aneurysm successfully treated by meatal loop trapping--case report.

Y Okumura1, T Sakaki, H Hirabayashi

  • 1Department of Neurosurgery, Seikeikai Hospital, Osaka.

Neurologia Medico-Chirurgica
|April 8, 1999
PubMed
Summary

A rare intrameatal aneurysm caused sudden neurological symptoms. Surgical trapping successfully treated the aneurysm, leading to near-complete recovery by preserving cranial nerves.

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Area of Science:

  • Neurosurgery
  • Vascular Neurology
  • Cranial Nerve Surgery

Background:

  • Intrameatal aneurysms are rare vascular malformations.
  • Subarachnoid hemorrhage can result from aneurysm rupture.
  • Symptoms may include headache, hearing loss, tinnitus, and vertigo.

Observation:

  • A 77-year-old female presented with symptoms of a ruptured intrameatal aneurysm.
  • The aneurysm was located within the internal auditory canal.
  • Subarachnoid hemorrhage was confirmed.

Findings:

  • Surgical intervention involved meatal loop trapping.
  • The 7th (facial) and 8th (vestibulocochlear) cranial nerves were preserved during surgery.
  • Effective collateral circulation from the anterior inferior cerebellar artery was noted.

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Implications:

  • Meatal loop trapping is a viable treatment for intrameatal aneurysms.
  • Preservation of cranial nerves and adequate collaterals are crucial for favorable outcomes.
  • This case highlights successful management of a rare neurovascular condition.