頸部内頸動脈の特発性解離性動脈瘤—2症例報告と文献的考察

Spontaneous Dissecting Aneurysm of The Cervical Internal Carotid Artery:Report of 2 cases and review of Iiterature

I．はじめに

　頸部内頸動脈の特発性解離性動脈瘤は，1954年Al-bert Jentzerが報告して以来^22），諸外国では注目されるようになってきた疾患であるが，わが国での報告は青木の2症例のみにすぎない_3）．今回われわれは，自然寛解を示した2例の頸部内頸動脈の特発性解離性動脈瘤を経験したのでここに報告し，さらに自験例も含め現在までに報告された頸部内頸動脈の特発性解離性動脈瘤129例の文献的考察を行った．

Two cases of the spontaneous dissecting aneurysm (SDA) of the cervical carotid artery (ICA) were reported.

Case 1: A 36 years old man was admitted with a sudden onset of right hemiparesis, aphasia and a oneweek history of headache and neck pain. Serological examinations were normal. Angiography showed a severe stenosis with two intimal flaps of the left cervical ICA. Four weeks later, left STA-MCA anastomosis was performed. After six weeks from the onset, reangiography showed the resolution of the left cervical ICA stenosis.

Case 2: A 26 years old man experienced the transient monoocular blindness a week before admission.