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Surgical Treatment for Symptomatic Arachnoid Cysts Yasushi MOTOYAMA 1 , Sachio NABESHIMA 1 , Naohiro YAMAZOE 1 , Fumiaki ISAKA 1 , Kazushi HIGUCHI 1 , Takeshi SATOW 1 1Department of Neurosurgery, Tenri Yorozu Hospital Keyword: arachnoid cyst , cystoperitoneal shunt , membranectomy , subdural hygroma pp.217-226
Published Date 2001/3/10
DOI https://doi.org/10.11477/mf.1436902023
  • Abstract
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During the period from 1983 to 1999, 12 patients with symptomatic arachnoid cyst were treated. Themean patient age was 20.6 years. The most common location was the middle fossa (10 cases). Initial CTscan revealed associated subdural hygroma in 7 patients and hydrocephalus in one. Clinincal symptomswere related to increased intracranial pressure, craniomegaly and seizure. One infant with a huge arach-noid cyst was treated, using a cystoperitoneal (CP) shunt. Four patients underwent membranectomy. Com-bination CP shunt and membranectomy was performed in 5 patients. The remaining 2 arachnoid cystswere complicated with subdural hygroma and, initially, they were observed conservatively, but hygromagradually changed to hematoma. One was treated by irrigation and the other hematoma was spontaneouslyabsorbed.

Significant complications included extensive subdural effusion in one patient, contralateral chronic sub-dural in two, intracranial hypotension in two, and shunt dependency in one. There were no re-currences during the follow-up period (mean 3.6 years)


Copyright © 2001, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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