Surgical Cavity in Extended Endoscopic Endonasal Approach to the Skull Base and their Relationship with Cerebrospinal luid Leak

1
Marlon Ortiz Machín
Marlon Ortiz Machín
2
Omar López Arbolay
Omar López Arbolay
3
Carlos Vargas Gálvez
Carlos Vargas Gálvez
4
Ambiorix Ottenwalder Díaz
Ambiorix Ottenwalder Díaz

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Cerebrospinal fluid leak represents a fearsome complication after Extended Endoscopic Endonasal Approach to the skull base. A descriptive observational study was performed in 550 patients operated for skull base tumors through Extended Endoscopic Endonasal Approaches, between 2010 and 2021 at the Ameijeiras Hospital. Surgical cavity was classified according to relation with intracranial hydrodynamic system into: type 0 (no contact with the hydrodynamic system), type 1 (subarachnoid cavity), type 2 (cisternal cavity), and type 3 (ventricular cavity). A significant increase CSF leak incidence was determined in type 2 (10,8 %) and type 3 (18 %) cavity and it was associated to increment of hydrodynamic energy secondary to Bernoulli laws.

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No external funding was declared for this work.

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The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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Not applicable for this article.

Marlon Ortiz Machín. 2026. \u201cSurgical Cavity in Extended Endoscopic Endonasal Approach to the Skull Base and their Relationship with Cerebrospinal luid Leak\u201d. Global Journal of Medical Research - A: Neurology & Nervous System GJMR-A Volume 23 (GJMR Volume 23 Issue A1): .

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Crossref Journal DOI 10.17406/gjmra

Print ISSN 0975-5888

e-ISSN 2249-4618

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GJMR-A Classification: LCC Code: RC400
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February 8, 2023

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Cerebrospinal fluid leak represents a fearsome complication after Extended Endoscopic Endonasal Approach to the skull base. A descriptive observational study was performed in 550 patients operated for skull base tumors through Extended Endoscopic Endonasal Approaches, between 2010 and 2021 at the Ameijeiras Hospital. Surgical cavity was classified according to relation with intracranial hydrodynamic system into: type 0 (no contact with the hydrodynamic system), type 1 (subarachnoid cavity), type 2 (cisternal cavity), and type 3 (ventricular cavity). A significant increase CSF leak incidence was determined in type 2 (10,8 %) and type 3 (18 %) cavity and it was associated to increment of hydrodynamic energy secondary to Bernoulli laws.

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Surgical Cavity in Extended Endoscopic Endonasal Approach to the Skull Base and their Relationship with Cerebrospinal luid Leak

Marlon Ortiz Machín
Marlon Ortiz Machín
Omar López Arbolay
Omar López Arbolay
Carlos Vargas Gálvez
Carlos Vargas Gálvez
Ambiorix Ottenwalder Díaz
Ambiorix Ottenwalder Díaz

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