Document Detail

Facial nerve outcome with a Peroperative stimulation threshold under 0.05 mA.
MedLine Citation:
PMID:  22020881     Owner:  NLM     Status:  In-Data-Review    
OBJECTIVES/HYPOTHESIS: To evaluate the facial nerve outcome postoperatively of schwannoma vestibular surgery with a stimulation threshold (ST) lower than 0.05 mA.
STUDY DESIGN: Retrospective chart review.
METHODS: A total of 106 patients had undergone schwannoma vestibular surgery between 2002 and 2008 in a tertiary center. The ST near the brainstem was obtained after the tumor removal. Facial nerve function was evaluated according to the House-Brackmann (HB) scale immediately postoperatively and at 1 year. The results were compared among the different STs used: <0.05 mA, 0.05 mA, and >0.05 mA.
RESULTS: There were 50 patients who had an ST <0.05 mA, 45 patients who had an ST of 0.05 mA, and 11 patients who had a ST >0.05 mA. Immediately postoperatively, for all of these groups we had a preservation of facial nerve function (HB I-II) in 94%, 80%, and 36% of patients, respectively (P < .0001). At 1 year in the same groups the preservation of the facial nerve function was 100%, 93%, and 82% of patients, respectively (P < .01).
CONCLUSIONS: A proximal ST of <0.05 mA is a better predictor of facial nerve function immediately postoperatively. Laryngoscope, 121:2295-2298, 2011.
Patrick Marin; Denis Pouliot; Gaétan Fradet
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Laryngoscope     Volume:  121     ISSN:  1531-4995     ISO Abbreviation:  Laryngoscope     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-10-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8607378     Medline TA:  Laryngoscope     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2295-8     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 The American Laryngological, Rhinological, and Otological Society, Inc.
Otolaryngology and Head and Neck Surgery department, Centre Hospitalier Affilié Universitaire de Québec, Pavillon l'Enfant-Jésus, Laval University, Quebec City, Canada.
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