Efficacy of Corticosteroids in Hearing Preservation after Radiosurgery for Vestibular Schwannoma: A Prospective Study

2011 ◽  
Vol 89 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Jin Wook Kim ◽  
Dong Gyu Kim ◽  
Sun Ha Paek ◽  
Hyun-Tai Chung ◽  
Yong Hwy Kim ◽  
...  
Skull Base ◽  
2010 ◽  
Vol 20 (01) ◽  
pp. 047-054 ◽  
Author(s):  
Dosh Sandooram ◽  
Rachael Hornigold ◽  
Beth Grunfeld ◽  
Nicholas Thomas ◽  
Neil Kitchen ◽  
...  

2018 ◽  
Vol 79 (S 01) ◽  
pp. S1-S188
Author(s):  
Natasha Amiraraghi ◽  
Margaret Gaggini ◽  
John Crowther ◽  
Richard Locke ◽  
Lorna Hastings ◽  
...  

2007 ◽  
Vol 122 (2) ◽  
pp. 128-131 ◽  
Author(s):  
T Khrais ◽  
G Romano ◽  
M Sanna

AbstractObjective:The origin of vestibular schwannoma has always been a matter of debate. The aim of our study was to identify the nerve origin of this tumour.Study design:Prospective case review. This study was conducted at Gruppo Otologico, a private referral centre for neurotology and skull base surgery.Methods:A total of 200 cases of vestibular schwannoma were included in the study. All the tumours were removed surgically utilising the translabyrinthine approach. The origin of the tumour was sought at the fundus of the internal auditory canal.Results:A total of 200 consecutive cases was included in the study. The origin of the tumour was limited to one nerve at the fundus in 152 cases (76 per cent). Out of these cases, the tumour originated from the inferior vestibular nerve in 139 cases (91.4 per cent), from the superior vestibular nerve in nine cases (6 per cent), from the cochlear nerve in two cases (1.3 per cent) and from the facial nerve in two cases (1.3 per cent).Conclusion:The vast majority of vestibular schwannomas originate from the inferior vestibular nerve; the incidence of involvement of this nerve increases as the tumour size increases. An origin of vestibular schwannoma from the inferior vestibular nerve can be considered as one of the explanatory factors for the poor functional outcome of the extended middle cranial fossa approach, and probably accounts also for the better hearing preservation rate reported in some series for the retrosigmoid approach.


2012 ◽  
Vol 84 (2) ◽  
pp. e161-e166 ◽  
Author(s):  
Jobin Kotakkathu Varughese ◽  
Tore Wentzel-Larsen ◽  
Paal-Henning Pedersen ◽  
Ruby Mahesparan ◽  
Morten Lund-Johansen

Skull Base ◽  
2008 ◽  
Vol 18 (S 01) ◽  
Author(s):  
Michael Gleeson ◽  
Dosh Sandooram ◽  
Nicholas Thomas ◽  
Neil Kitchen ◽  
Beth Grunfeld

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Martin Chovanec ◽  
Eduard Zvěřina ◽  
Oliver Profant ◽  
Zuzana Balogová ◽  
Jan Kluh ◽  
...  

Background. The aim of this study was to analyze the effect of vestibular schwannoma microsurgery via the retrosigmoid-transmeatal approach with special reference to the postoperative tinnitus outcome.Material and Methods. A prospective study was performed in 89 consecutive patients with unilateral vestibular schwannoma indicated for microsurgery. Patient and tumor related parameters, pre- and postoperative hearing level, intraoperative findings, and hearing and tinnitus handicap inventory scores were analyzed.Results. Cochlear nerve integrity was achieved in 44% corresponding to preservation of preoperatively serviceable hearing in 47% and useful hearing in 21%. Main prognostic factors of hearing preservation were grade/size of tumor, preoperative hearing level, intraoperative neuromonitoring, tumor consistency, and adhesion to neurovascular structures. Microsurgery led to elimination of tinnitus in 66% but also new-onset of the symptom in 14% of cases. Preservation of useful hearing and neurectomy of the eighth cranial nerve were main prognostic factors of tinnitus elimination. Preservation of cochlear nerve but loss of preoperative hearing emerged as the main factor for tinnitus persistence and new onset tinnitus. Decrease of THI scores was observed postoperatively.Conclusions. Our results underscore the importance of proper pre- and intraoperative decision making about attempt at hearing preservation versus potential for tinnitus elimination/risk of new onset of tinnitus.


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