ArticleFrontiers in oncology2021
Endoscope-Assisted Retrosigmoid Approach for Vestibular Schwannomas With Intracanalicular Extensions: Facial Nerve Outcomes.
Article in Frontiers in oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 11 papers, 2 of them syntheses that pooled it.
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11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.
- A systematic review on the role of the endoscope in the surgical management of cerebellopontine angle tumors: is it time to draw the conclusion?European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025Pooled it
- Research trends of facial nerve injury after cerebellopontine angle tumor: CiteSpace-based bibliometric analysis.Frontiers in neurology · 2025Pooled it
- Vestibular schwannoma microsurgery in the era of multimodal treatment: advances in technique and patient selection.Journal of neuro-oncology · 2026Review
- Vestibular schwannoma microsurgery peculiarities for better functional outcome and result comparison.Brain & spine · 2026Article
- Neuroendoscopy Combined with Intraoperative Electrophysiological Monitoring for the Protection of the Facial Nerve in Near Total Resection Surgery for Acoustic Neuroma.Journal of Korean Neurosurgical Society · 2026Article
- Hearing Preservation and Complications of the Middle Cranial Fossa Approach for Otolaryngological Diseases: Twelve-Year Single-Center Experience.Journal of clinical medicine · 2025Article
- Exo- and endoscopic two-step approach for recurrent vestibular schwannomas following surgical resection and radiosurgery: How I do it.Acta neurochirurgica · 2025Article
- Solitary metastasis in the internal auditory canal from non-small cell lung carcinoma: A case report.Respiratory medicine case reports · 2025Article
- Two-Stage Surgical Management for Acutely Presented Large Vestibular Schwannomas: Report of Two Cases.Brain sciences · 2023Article
- Analysis of the effect of neuroendoscopy-assisted microscopy in the treatment of Large (Koos grade IV) vestibular schwannoma.Frontiers in oncology · 2023Article
- How to Precisely Open the Internal Auditory Canal for Resection of Vestibular SchwannomaFrontiers in surgery · 2022Article
Corrections and comments
- Erratum issued
Authors and funding
12 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo explore the role of neuroendoscope assistance during surgical resection of the intracanalicular portion of vestibular schwannomas
methodsPatients of vestibular schwannoma with intracanalicular extensions undergoing retrosigmoid dissection at a single institution were retrospectively analyzed in this study. Several surgical techniques were applied to ensure maximal and safe removal of tumors. Tumors extending less than 10 mm into the internal acoustic canal (IAC) were classified as Grade A, while those extending over 10 mm into IAC were taken as Grade B. Neuroendoscope was applied at the end of microscopic phase to search for potential remnants for Grade B tumors. Absolute tumor extension was defined and measured. House and Brackmann (HB) scale was used to evaluate immediate CN VII outcomes.
resultsOf the 61 patients, there were 38 females and 23 males. A total of 18 (29.51%) cases were Koos Grade II, 12 (19.67%) cases Koos Grade III, and 31 (50.82%) cases Koos Grade IV. There were 38 cases (62.30%) of Grade A and 23 cases (37.70%) of Grade B. Gross total resection was achieved in 60 cases (98.36%). Four cases of intracanalicular remnants were detected and completely removed under endoscopic visualizations. There was a significantly higher proportion (17%, p = 0.02) of intracanalicular remnants in Grade B than Grade A. CN VII and VIII were anatomically preserved in all cases. A total of 55 cases (90.16%) retained good (HB Grades 1 and 2) facial nerve outcomes.
conclusionsIn Grade B vestibular schwannomas, after maximal microsurgical removal, endoscopic evaluation of the intracanalicular portion revealed residual tumors in 17% of the patients. Hence endoscopic evaluation of the potential intracanalicular remnants for tumor extending over 10 mm within IAC (Grade B) is recommended.
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