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Microvascular Decompression: Salient Surgical Principles and Technical Nuances
10:35

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Published on: July 5, 2011

Oculomotor palsy treated by microvascular decompression.

Kensuke Suzuki1, Ai Muroi, Yuji Kujiraoka

  • 1Department of Neurosurgery, University of Tsukuba, Ibaraki 305-8575 Japan. kensukes@md.tsukuba.ac.jp

Surgical Neurology
|February 12, 2008
PubMed
Summary

Arterial compression, specifically from arteriosclerotic posterior cerebral artery (PCA) and superior cerebellar artery (SCA), can cause oculomotor nerve palsy. Microvascular decompression effectively treats this condition.

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Area of Science:

  • Neuroscience
  • Vascular Surgery

Background:

  • Oculomotor palsy commonly results from diabetes, aneurysms, or cavernous sinus lesions.
  • Arterial compression is an infrequent cause of oculomotor nerve palsy.

Observation:

  • A 76-year-old male presented with left oculomotor palsy.
  • Surgical exploration revealed the third cranial nerve was compressed between arteriosclerotic posterior cerebral artery (PCA) and superior cerebellar artery (SCA), not an aneurysm.

Findings:

  • Arteriosclerotic PCA and SCA can directly compress the oculomotor nerve.
  • Microvascular decompression led to improvement in oculomotor nerve palsy.

Implications:

  • This case highlights arteriosclerotic arteries as a potential cause of oculomotor palsy.
  • Microvascular decompression is a viable treatment for oculomotor nerve compression by arteriosclerotic arteries.