内頸動脈瘤にみられる動眼神経麻痺の推移について

Oculomotor Palsy due to Aneurysm of Internal Carotid Artery

Ⅰ．はじめに

　内頸動脈瘤において出現頻度の高い局所症状の1つに動眼神経麻痺がある．脳動脈瘤に対してmicrosurgeryの技術が導入されて以来，その手術成績は飛躍的に向上しつつあるが，動眼神経麻痺の術前・術後の推移について観察した報告は意外に少ない．今回は自験例の検討を若干の文献的考察と合せて報告する．

Sixty-five cases of berry aneurysm on the supraclinoid portion of internal carotid artery were reviewed on the viewpoint of oculomotor palsy.

27 of 65 patients (42%) showed oculomotor palsy. Most cases of complete oculomotor paralysis developed immediately after having subarachnoid hemorrhage, whereas the case of gradually developing oculomotor palsy tended to manifest diplopia first, and followed with blephaloptosis.