Expanded transcanal transpromontorial approach to the internal auditory canal: Pilot clinical experience.
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BORIS DOI
Publisher DOI
PubMed ID
28271520
Description
OBJECTIVES/HYPOTHESIS
The aim of this study was to describe and evaluate the feasibility of an expanded transcanal transpromontorial approach, developed from the exclusive endoscopic transcanal transpromontorial approach.
STUDY DESIGN
Retrospective case series.
METHODS
Retrospective chart review of 10 patients operated by an expanded transcanal transpromontorial approach in two tertiary referral centers (University Hospital of Modena, Italy and University Hospital of Verona, Italy). Data from charts and video documentation were collected and analyzed.
RESULTS
Between April 2015 and January 2016, 10 patients underwent an expanded transcanal transpromontorial approach for vestibular schwannoma Koos stage I or II and were enrolled in the study. The size of the tumors ranged from 7 to 19 mm in maximum diameter. A gross total resection was achieved in all cases. One subject experienced postoperative cerebrospinal fluid otorhinorrhea and three subjects experienced temporary postoperative facial weakness, all of which completely resolved. The mean follow-up was 5 months.
CONCLUSIONS
The expanded transcanal transpromontorial approach allowed bimanual dissection using a microscopic technique for the treatment of pathologies of the internal auditory canal and cerebellopontine angle. This novel approach resulted in minimal morbidity and comparable facial nerve preservation rates to the traditional approaches to the internal auditory canal. The expanded transpromontorial approach to the internal auditory canal holds promise for addressing pathology in this region of the temporal bone from the external auditory canal.
LEVEL OF EVIDENCE
4. Laryngoscope, 127:2608-2614, 2017.
The aim of this study was to describe and evaluate the feasibility of an expanded transcanal transpromontorial approach, developed from the exclusive endoscopic transcanal transpromontorial approach.
STUDY DESIGN
Retrospective case series.
METHODS
Retrospective chart review of 10 patients operated by an expanded transcanal transpromontorial approach in two tertiary referral centers (University Hospital of Modena, Italy and University Hospital of Verona, Italy). Data from charts and video documentation were collected and analyzed.
RESULTS
Between April 2015 and January 2016, 10 patients underwent an expanded transcanal transpromontorial approach for vestibular schwannoma Koos stage I or II and were enrolled in the study. The size of the tumors ranged from 7 to 19 mm in maximum diameter. A gross total resection was achieved in all cases. One subject experienced postoperative cerebrospinal fluid otorhinorrhea and three subjects experienced temporary postoperative facial weakness, all of which completely resolved. The mean follow-up was 5 months.
CONCLUSIONS
The expanded transcanal transpromontorial approach allowed bimanual dissection using a microscopic technique for the treatment of pathologies of the internal auditory canal and cerebellopontine angle. This novel approach resulted in minimal morbidity and comparable facial nerve preservation rates to the traditional approaches to the internal auditory canal. The expanded transpromontorial approach to the internal auditory canal holds promise for addressing pathology in this region of the temporal bone from the external auditory canal.
LEVEL OF EVIDENCE
4. Laryngoscope, 127:2608-2614, 2017.
Date of Publication
2017-11
Publication Type
Article
Subject(s)
Keyword(s)
Inner ear cerebellopontine angle endoscopic ear surgery internal auditory canal transcanal approach
Language(s)
en
Contributor(s)
Presutti, Livio | |
Alicandri-Ciufelli, Matteo | |
Bonali, Marco | |
Rubini, Alessia | |
Pavesi, Giacomo | |
Feletti, Alberto | |
Masotto, Barbara | |
Marchioni, Daniele |
Series
Laryngoscope
Publisher
Wiley-Blackwell
ISSN
0023-852X
Access(Rights)
open.access