title: Subdural fluid collections following transcortical approach to intra- or paraventricular tumours.
abstract: Subdural fluid collections appeared in 15 cases (39%) after removal of 38 intra- and paraventricular tumours in the third or lateral ventricle through 18 frontal and 20 parietal transcortical approaches. Transient fluid collections which disappeared within 2 weeks occurred in 6 cases (16%) and persistent ones in 9 cases (24%). Four of the 9 cases (11%) of collections required surgical treatment because of positive clinical signs and symptoms. Two cases had expansive fluid collections and the other two contained subdural haematomas at surgery. The risk factors likely to contribute to a persistent collection were preoperative ventriculomegaly (frontal horn index greater than 0.38) and a frontal transcortical approach. A symptomatic collection should be considered as a potential complication of the transcortical approach to intraventricular tumours and some methods should be devised to prevent it when intra- or paraventricular tumours with ventriculomegaly are removed.
authors.affiliation: Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Tanaka
authors.forename: K
authors.initials: K
authors.lastname: Sugita
authors.forename: S
authors.initials: S
authors.lastname: Kobayashi
authors.forename: T
authors.initials: T
authors.lastname: Takemae
authors.forename: A S
authors.initials: AS
authors.lastname: Hegde
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002551:Cerebral Ventricle Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008581:Meningitis / Q000209:etiology*; D008875:Middle Aged; D009380:Neoplasms, Nerve Tissue / Q000000981:diagnostic imaging / Q000601:surgery*; D011183:Postoperative Complications / Q000503:physiopathology*; D013353:Subdural Effusion / Q000209:etiology*; D014057:Tomography, X-Ray Computed