title: [Results of neuroendoscopic treatment of arachnoid cysts in adults].
abstract: OBJECTIVE
  Most arachnoid cysts (ACs) are asymptomatic, but some of them cause mass effect, mainly in adults. Surgery of ACs is controversial, especially regarding the choice of the best method of treatment. The authors present short- and long-term outcome of endoscopic surgery of ACs.
  
  
  METHODS
  There were 19 adults with symptomatic ACs treated surgically in the last 6 years. 16 cysts were located supratentorially, and 3 infratentorially. Cystocisternostomy was carried out in 7 patients, cystocisternostomy with catheter implantation was performed in 5 patients, cystoventriculostomy in 3 patients, and cystoventriculostomy with catheter implantation was carried out in 2 patients. In one case additional endoscopy combined with shunt was necessary, and in another one endoscopy converted to microsurgery. Outcome was assessed by means of neurological examination and computed tomography (CT).
  
  
  RESULTS
  During the short-term follow-up, 11 (57.9%) cases improved neurologically, and in 6 (33.0%) ACs were significantly smaller in CT. During the long-term follow-up, 14 (73.7%) patients improved significantly, and the size of ACs was reduced in 16 (84.2%). In two cases subdural haematoma was observed.
  
  
  CONCLUSIONS
  Outcome after endoscopic surgery of ACs in adults is good, and the complication rate is low. Endoscopy should be recommended as the treatment of choice in patients suffering from ACs.
authors.affiliation: Klinika Neurochirurgii, Collegium Medicum, Uniwersytet Jagielloñski, ul. Botaniczna 3, 31-503 Kraków. kkstach@poczta.onet.pl
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Stachura
authors.forename: Ryszard
authors.initials: R
authors.lastname: Czepko
mesh_terms: D000328:Adult; D016080:Arachnoid Cysts / Q000000981:diagnostic imaging / Q000601:surgery*; D001921:Brain / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008866:Microsurgery / Q000379:methods*; D044583:Neuroendoscopy / Q000379:methods*; D011044:Poland; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome