Pupil-sparing oculomotor nerve paresis as an early symptom of unruptured internal carotid-posterior communicating artery aneurysms - Three case reports

Ryuta Saito, Takayuki Sugawara, Sigeki Mikawa, Takeshi Fukuda, Misaki Kohama, Hirobumi Seki

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Oculomotor nerve paresis caused by internal carotid-posterior communicating artery (IC-PC) aneurysm usually manifests with pupillary dysfunction. Recently, we treated three patients with unruptured IC-PC aneurysms initially manifesting as pupil-sparing oculomotor nerve paresis, which resolved after clipping of the aneurysms. Review of the 56 patients admitted to our hospital with unruptured IC-PC aneurysms between January 2000 and December 2006 identified 6 patients with oculomotor nerve disturbances, and the 3 present cases with pupil sparing. The incidence of IC-PC aneurysms manifesting as pupil-sparing oculomotor nerve paresis may be increasing with improved accessibility to medical services and wider awareness of oculomotor nerve paresis as a symptom of cerebral aneurysms. Cerebral angiography should be performed in patients with pupil-sparing oculomotor nerve paresis.

Original languageEnglish
Pages (from-to)304-306
Number of pages3
JournalNeurologia medico-chirurgica
Volume48
Issue number7
DOIs
Publication statusPublished - 2008
Externally publishedYes

Keywords

  • Oculomotor nerve paresis
  • Posterior communicating artery
  • Pupil sparing
  • Unruptured cerebral aneurysm

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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