Impact of vestibular nerve preservation on facial and hearing outcomes in small vestibular schwannoma surgery: a technical feasibility study

2021 ◽  
Author(s):  
Mohamed A. Labib ◽  
Mizuho Inoue ◽  
Renee M. Banakis Hartl ◽  
Stephen Cass ◽  
Samuel Gubbels ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Vestibular Schwannoma ◽  
Vestibular Nerve ◽  
Technical Feasibility ◽  
Nerve Preservation ◽  
Hearing Outcomes

Tumor origin and hearing preservation in vestibular schwannoma surgery

2011 ◽  
Vol 115 (5) ◽  
pp. 900-905 ◽  
Author(s):  
Jens Rachinger ◽  
Stefan Rampp ◽  
Julian Prell ◽  
Christian Scheller ◽  
Alex Alfieri ◽  
...  
Keyword(s):  
Vestibular Schwannoma ◽  
Tumor Size ◽  
Hearing Preservation ◽  
Vestibular Nerve ◽  
Cochlear Nerve ◽  
Nerve Function ◽  
Nerve Preservation ◽  
Tumor Origin ◽  
Inferior Vestibular Nerve ◽  
Vs Removal

Object Preservation of cochlear nerve function in vestibular schwannoma (VS) removal is usually dependent on tumor size and preoperative hearing status. Tumor origin as an independent factor has not been systematically investigated. Methods A series of 90 patients with VSs, who underwent surgery via a suboccipitolateral route, was evaluated with respect to cochlear nerve function, tumor size, radiological findings, and intraoperatively confirmed tumor origin. All patients were reevaluated 12 months after surgery. Results Despite comparable preoperative cochlear nerve status and larger tumor sizes, hearing preservation was achieved in 42% of patients with tumor originating from the superior vestibular nerve, compared with 16% of those with tumor originating from the inferior vestibular nerve. Conclusions Tumor origin is an important prognostic factor for cochlear nerve preservation in VS surgery.

Technical feasibility study of modular dish solar electric systems

1976 ◽  
Author(s):  
B. P. Gupta ◽  
R. L. Buchholz ◽  
E. M. McBride ◽  
D. C. Gray ◽  
W. M. Bohan
Keyword(s):  
Feasibility Study ◽  
Technical Feasibility

Su1339 Technical Feasibility Study of Eus-Guided Hydrogel Microparticle Injection Into the Pancreatic Head-Duodenal Wall Interface in a Cadaveric Model

2017 ◽  
Vol 85 (5) ◽  
pp. AB340-AB341
Author(s):  
Seong-Hun Kim ◽  
Kai Ding ◽  
Avani Rao ◽  
Lauren Rosati ◽  
Amol Narang ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Pancreatic Head ◽  
Duodenal Wall ◽  
Technical Feasibility ◽  
Hydrogel Microparticle ◽  
Cadaveric Model

766 Endoscopic Surgery for Sporadic Vestibular Schwannoma Resection: A Systematic Review of Surgical Outcomes

2021 ◽  
Vol 108 (Supplement_2) ◽  
Author(s):  
S Chiuta ◽  
S Raza-Knight ◽  
A Alalade
Keyword(s):  
Facial Nerve ◽  
Hearing Preservation ◽  
Extent Of Resection ◽  
Current Data ◽  
Resection Rate ◽  
Eighth Cranial Nerve ◽  
Nerve Preservation ◽  
Microsurgical Resection ◽  
Hearing Outcomes ◽  
Series Report

Abstract Introduction Vestibular schwannomas (VS) are benign intracranial tumours originating from the vestibular division of the eighth cranial nerve. The mainstay of their surgical management is microsurgery, other options are radiotherapy or radiological monitoring. Endoscopy (ES) is becoming widely used in neurosurgery and may have a role in improving visualisation and outcomes by enhancing extent of resection, facial nerve, and hearing preservation in VS resection and describe the postoperative outcomes. Method The review was conducted according to the PRISMA guidelines and yielded 31 studies for inclusion. Systematic searches of literature databases were done for studies where endoscopic-assisted and/or endoscopic resection of VS were reported. Results ES facial nerve preservation rates (median 91.3%, range 39.0 - 100%) were comparable to microsurgical treatment. Hearing outcomes were more variable in ES series and were under-reported. A median gross total resection rate of 97.4% (61.0 - 100%) was achieved in the ES series. Conclusions Current data suggest that ES-assisted resection of sporadic VS is not inferior to microsurgical resection with respect to facial nerve outcomes and extent of resection. However, some ES series report poor hearing outcomes, which are under-reported in the literature.

Making Fired Bricks With Spent Equilibrium Catalyst-A Technical Feasibility Study

2009 ◽  
Vol 35 (4) ◽  
pp. 200-208
Author(s):  
Mei-In (Melissa) Chou ◽  
Lu-Ming Chen ◽  
Yi-Chieh Lai ◽  
Sheng-Fu (Joseph) Chou
Keyword(s):  
Feasibility Study ◽  
Technical Feasibility ◽  
Fired Bricks ◽  
Equilibrium Catalyst

Technical Feasibility Study of an E-Shaped Electromagnetic Guideway for HTS Maglev

2020 ◽  
Vol 30 (6) ◽  
pp. 1-10
Author(s):  
Wei Hong ◽  
Ying Xin ◽  
Changqi Wang ◽  
Yuyan Wen ◽  
Chaoqun Zhao ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Technical Feasibility ◽  
Hts Maglev

scholarly journals Diamond knife dissection technique for nerve preservation during resection of large vestibular schwannomas

2021 ◽  
Vol 5 (2) ◽  
pp. V8
Author(s):  
Julia Shawarba ◽  
Cand Med ◽  
Matthias Tomschik ◽  
Karl Roessler
Keyword(s):  
Vestibular Schwannoma ◽  
Facial Nerve Palsy ◽  
Hearing Preservation ◽  
Vestibular Schwannomas ◽  
Nerve Preservation ◽  
Dissection Techniques ◽  
Dissection Technique ◽  
Large Vestibular Schwannoma ◽  
Facial Function ◽  
Diamond Knife

Facial and cochlear nerve preservation in large vestibular schwannomas is a major challenge. Bimanual pincers or plate-knife dissection techniques have been described as crucial for nerve preservation. The authors demonstrate a recently applied diamond knife dissection technique to peel the nerves from the tumor capsule. This technique minimizes the nerve trauma significantly, and complete resection of a large vestibular schwannoma without any facial nerve palsy and hearing preservation is possible. The authors illustrate this technique during surgery of a 2.6-cm vestibular schwannoma in a 27-year-old male patient resulting in normal facial function and preserved hearing postoperatively. The video can be found here: https://stream.cadmore.media/r10.3171/2021.7.FOCVID21104

Stainless Steel Bipolar Plates.-Commercial and Technical Feasibility Study for Mass Production in Mexico

2019 ◽  
Vol 17 (1) ◽  
pp. 411-419
Author(s):  
Fernando Correa ◽  
Gerardo Arredondo ◽  
Yunny Meas ◽  
Luis Gerardo Arriaga ◽  
German Orozco
Keyword(s):  
Stainless Steel ◽  
Feasibility Study ◽  
Mass Production ◽  
Bipolar Plates ◽  
Technical Feasibility ◽  
Stainless Steel Bipolar Plates
Sign in / Sign up

Export Citation Format

Share Document