Minor Leakを示した脳動脈瘤症例の検討

Minor Leak in Intracranial Aneurysms

I．はじめに

　脳動脈患者の治療成績を向上させるためには，いかにして重症くも膜下出血（SAH）の発生を予防するかにかかっている．このためには，未破裂動脈瘤にたいする積極的治療及び重症SAHの発生前に認められるminorleakを示す症例を早期に診断し治療することにより達成することができると考えられる．今回minor leakを示した症例の臨床所見および治療成績を検討した結果，興味ある知見が得られたのでその概要を報告する．

Abstract

To study the clinical features of aneurysm with a minor leak, 68 aneurysmal cases were divided into Group A (53 cases which showed a major rupture after a minor leak) and Group B (15 cases which only showed a minor leak). Most patients with a minor leak complain of a thunderclap type headache, which is usually located in the occipital area, or which seem to in-volve the whole brain. It is also associated with nausea and vomiting. Patients with a minor leak from an inter-nal carotid artery aneurysm had ipsilateral, hemicranial or periorbital pain.