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Conversion technique from neuroendoscopy to microsurgery in ventricular tumors: Technical note.

Pedro Henrique da C F Pinto1, Flavio Nigri2, Gabriel N Gobbi1

  • 1Department of Surgical Specialties, Neurosurgery Teaching and Assistance Unit, Pedro Ernesto University Hospital, Rio de Janeiro State University, Rio de Janeiro, RJ, Brazil.

Surgical Neurology International
|December 7, 2016
PubMed
Summary

This study presents a neurosurgical technique for ventricular tumors, enabling conversion from endoscopy to microsurgery when needed. The method simplifies complex cases, achieving excellent surgical outcomes with minimal complications.

Keywords:
Conversion techniquemicrosurgeryneuroendoscopyopen craniotomyventricular tumors

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Area of Science:

  • Neurosurgery
  • Minimally Invasive Surgery
  • Neuroendoscopy

Background:

  • Ventricular tumors pose significant neurosurgical challenges.
  • Endoscopic approaches are valuable but have limitations, sometimes necessitating open surgery.
  • Pre-operative planning for potential conversion to open craniotomy is crucial.

Purpose of the Study:

  • To describe a technique for converting neuroendoscopic ventricular tumor removal to microsurgery.
  • To evaluate the safety and efficacy of this conversion technique.

Main Methods:

  • A series of 6 patients with ventricular tumors (subependymomas and colloid cysts) underwent neuroendoscopy with planned conversion to microsurgery.
  • Standard surgical incision and endoscopic burr hole enlargement facilitated a transcortical microsurgical corridor.
  • Conversion was necessitated by tumor consistency, technical issues, or cortical collapse.

Main Results:

  • One case each of cerebrospinal fluid fistula/infection and transient memory disturbance occurred, both with complete functional recovery.
  • Complete tumor removal was achieved in all cases.
  • No tumor recurrences were observed during clinical and radiological follow-up.

Conclusions:

  • The described technique effectively overcomes endoscopic limitations for ventricular tumors.
  • This adaptable method offers excellent surgical results and simplifies conversion to microsurgery.
  • The technique shows promise for application in other tumor locations.