• Pediatric neurosurgery · Jan 2012

    Endoscopic treatment of interhemispheric arachnoid cysts.

    • Alexandre Varella Giannetti, Sílvia Maria Ferreira Fraga, Márcia Cristina Silva, and Juliana Gurgel-Giannetti.
    • Department of Neurosurgery, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil. agjg@terra.com.br
    • Pediatr Neurosurg. 2012 Jan 1; 48 (3): 157-62.

    BackgroundTo describe the neuroendoscopic treatment of interhemispheric arachnoid cysts.MethodsFive children (aged 1-9 months) harboring interhemispheric arachnoid cysts underwent the procedure. The neuroendoscopic technique included cystoventriculostomy and cystocisternostomy. Imaging exams were compared before and after surgery, and the differences in cyst diameters were calculated. Head circumference and neurological development were also evaluated.ResultsThe cystoventriculostomy was performed through the lateral ventricle in 4 cases and through the third ventricle in 4 cases. An added cystocisternostomy was performed in 1 case. Cyst diameters were reduced in the anterior-posterior, lateral-medial and superior-inferior planes in 22, 31 and 31% of the cases, respectively. The rate of increasing head circumference slowed; however, all the children continued to show slight macrocrania. There were complications in 2 cases: cerebrospinal fluid fistula was managed by lumbar puncture in 1 case and subdural collection was treated with a shunt in another single case.ConclusionThe neuroendoscopic approach to interhemispheric arachnoid cysts was effective with few complications.Copyright © 2013 S. Karger AG, Basel.

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