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CC BY-NC-ND 4.0 · Arquivos Brasileiros de Neurocirurgia: Brazilian Neurosurgery 2017; 36(01): 71-74
DOI: 10.1055/s-0036-1597947
Technical Note | Nota Técnica
Thieme Revinter Publicações Ltda Rio de Janeiro, Brazil

Trapped Fourth Ventricle in Recurrent Acoustic Schwannoma - A Rarity

Quarto ventrículo isolado com schwannoma acústico recorrente – uma raridade
Vinod Kumar
1   Department of Neurosurgery, Manipal University, Kasturba Medical College Manipal, Manipal, Karnataka, India
,
Ajay Hegde
1   Department of Neurosurgery, Manipal University, Kasturba Medical College Manipal, Manipal, Karnataka, India
,
Rajesh Nair
1   Department of Neurosurgery, Manipal University, Kasturba Medical College Manipal, Manipal, Karnataka, India
,
Girish Menon
1   Department of Neurosurgery, Manipal University, Kasturba Medical College Manipal, Manipal, Karnataka, India
› Author Affiliations
Further Information

Publication History

01 November 2016

02 December 2016

Publication Date:
30 January 2017 (online)

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Abstract

Fourth ventricular dilatation is usually seen along with tri-ventriculomegaly in patients with communicating hydrocephalus. Isolated fourth ventricular dilatation is uncommon, especially as a sequelae following infective or post hemorrhagic communicating hydrocephalus. Communicating hydrocephalus is reported in vestibular schwannoma with an incidence of 3.7 to 23.5%, but 4th ventricular dilatation following its treatment has not been reported in the literature. We report a novel case of isolated fourth ventricular obstruction following surgery for recurrent vestibular schwannoma and ventriculoperitoneal shunt placement for communicating hydrocephalus. Management strategies range from endoscopic procedures to ventricular shunt placement. We describe the surgical technique for the placement of a fourth ventricular shunt with the use of a Y connector.

Resumo

Em pacientes com hidrocefalia comunicante, a dilatação do quarto ventrículo é normalmente vista acompanhada de triventriculomegalia. A dilatação do quarto ventrículo isolado é incomum, especialmente como uma sequela subsequente à hidrocefalia comunicante infecciosa ou hemorrágica. Hidrocefalia comunicante é relatada em schwannoma vestibular com incidência de 3,7 a 23,5%, mas a dilatação do quarto ventrículo subsequente ao tratamento não foi encontrada na literatura. Relatamos caso de obstrução do quarto ventrículo isolado subsequente a cirurgia para schwannoma vestibular recorrente e shunt ventriculoperitoneal para hidrocefalia comunicante. As estratégias de manejo variam de procedimentos endoscópicos a shunt ventricular. Descrevemos técnica cirúrgica para alocação de shunt do quarto ventrículo com o uso de conector Y.

Keywords

hydrocephalus - ventriculoperitoneal shunt - vestibular schwannoma - slit ventricle

Palavras-chave

hidrocefalia - shunt ventriculoperitoneal - schwannoma vestibular - fenda ventricular
 

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