Iopamidolによる脳血管撮影後錯乱状態となった1例

A State of Confusion Following Cerebral Angiography with Iopamidol : a case report

I．はじめに

　脳神経外科学の分野には多くの両像診断法があるが，脳血管撮影はその中でも診断価値の高い検査法のひとつである．造影剤や検査機器の改良が進み，その安全性は高い水準にあるが，やはり合併症の存在は無視できない．今回われわれは，脳血管撮影後に錯乱状態を来たした症例を経験し，これが造影剤によると思われたので，若干の文献的考察を加え報告する．

A 59-year-old male in a state of confusion following cerebral angiography with iopamidol was reported.He was admitted to our hospital for right upper monoparesis. MRI demonstrated multiple cerebral infarc-tion. The patient had undergone angiographies with iopamidol, of which a total of 100 ml had been used.After the examination, the patient showed perseveration, continuing to say the same sentence and 30 mi-nutes later he entered a state of confusion. He recovered completely from this consciousness disturbanceafter 30 hours. No lesion except for the old infarction was demonstrated on CT and MRI. Confusion in thiscase was assumed to be a toxic reaction caused by the contrast agent.