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Title

Neuroendoscopic Intraoperative Ultrasound-Guided Technique for Biopsy of Paraventricular Tumors

AuthorsDi Somma, Alberto; Narros Giménez, José Luis; Almarcha Bethencourt, José Manuel; Cavallo, Luigi Maria; Márquez-Rivas, Javier
KeywordsEndoscopic third ventriculostomy
Neuroendoscopic intraoperative ultrasound
Issue DateFeb-2019
PublisherElsevier
CitationWorld Neurosurgery 122: 441-450 (2019)
AbstractDifferent tumors can be encountered in the paraventricular regions, and whereas their deep location often make them difficult to access surgically, they may be amenable to chemotherapy and/or radiotherapy. Therefore, tumor biopsy and histologic diagnosis are mandatory to optimize treatment. Different technical procedures have been recommended; the neuroendoscopic approach is accepted and widely used, in particular with an enlarged ventricular system. However, specifically with paraventricular tumors, tissue sampling may be challenging. In such a scenario, the use of intraoperative ultrasonography technique can add some advantages regarding diagnostic accuracy and procedure safety. Accordingly, in this study we describe a novel technical procedure in 7 selected patients in whom tumor tissue biopsy was performed in a coupled neuroendoscopic and ultrasound-guided environment. We define a neuroendoscopic intraoperative ultrasound technique. The main advantages of this technique are the identification of the tumor that may not been clearly identified underneath the ventricular ependymal through the neuroendoscopic window alone, and furthermore, that this technique gives the possibility to detect the depth of the needle advance∖ment in the selected tissue while labeling the lesion beneath the ventricular ependyma. Moreover, intraoperative ultrasonography can reveal in a real-time fashion intracranial hemorrhages that may occur after tissue biopsy, therefore providing a useful tool to achieve valid and directed hemostasis when needed.
Publisher version (URL)https://doi.org/10.1016/j.wneu.2018.11.057
URIhttp://hdl.handle.net/10261/213220
DOI10.1016/j.wneu.2018.11.057
ISSN1878-8750
Appears in Collections:(IBIS) Artículos
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