Development of cranial nerve palsy shortly after endosaccular embolization for asymptomatic cerebral aneurysm: report of two cases and literature review.
METHODS
We report two cases of asymptomatic cerebral aneurysm in which cranial nerve palsy (CNP) developed shortly after symbolization. The CNP occurred immediately in case 1, but case 2 showed the CNP 30 h after symbolization. Although both aneurysms had increased in size on follow-up angiography, case 2 who showed dome re canalization resulted in progressive CNP deterioration.


CONCLUSIONS
These findings suggest that the CNP may result not only from mechanical compression by coils but also from inflammation induced by perpendicular thrombosis, and that the prognosis of the CNP may be influenced by dome re canalization. This complication should be kept in mind in treatment for asymptomatic aneurysms adjacent to the cranial nerves.
Nishino
Kazuhiko
K
Department of Neurosurgery, Brain Research Institute, University of Niigata, Niigata, Japan. nishino@bri.niigata-u.ac.jp
Ito
Yasushi
Y
Hasegawa
Hitoshi
H
Shimbo
Junsuke
J
Kikuchi
Bumpei
B
Fujii
Yukihiko
Y
D000010:Abducens Nerve / Q000098:blood supply / Q000473:pathology / Q000503:physiopathology; D020222:Abducens Nerve Injury / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D000328:Adult; D000368:Aged; D001929:Brain Edema / Q000209:etiology / Q000503:physiopathology / Q000517:prevention & control; D020215:Carotid Artery, Internal, Dissection / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D020209:Cranial Nerve Injuries / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology; D018450:Disease Progression; D004621:Embolization, Therapeutic / Q000009:adverse effects* / Q000295:instrumentation / Q000379:methods; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology / Q000503:physiopathology / Q000628:therapy*; D009443:Neuritis / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D009802:Oculomotor Nerve / Q000098:blood supply / Q000473:pathology / Q000503:physiopathology; D015840:Oculomotor Nerve Diseases / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D011183:Postoperative Complications / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology; D019736:Prostheses and Implants / Q000009:adverse effects; D011859:Radiography; D012086:Reoperation; D018570:Risk Assessment