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Hearing preservation in cochlear implant surgery : a meta-analysis

(2018) OTOLOGY & NEUROTOLOGY. 40. p.145-153
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Abstract
Objective(s): The aim of the present meta-analysis is to assess the effects of hearing preservation (HP) methods on residual hearing in patients undergoing cochlear implant (CI) surgery and to look at the effect of follow-up time on HP outcome. Data Sources: A systematic search was conducted in PubMed, Embase, and Cochrane Library. Only articles in English were included. Study Selection: Prospective studies published until January 2018 on hearing preservation methods were included. Data Extraction: Studies were assessed on unaided pre- and postoperative hearing thresholds, follow up time, and methodological quality. Data Synthesis: A random-effects meta-regression was performed for the HP outcome in relation to surgical technique, electrode array design, inserted electrode length, insertion speed, and corticosteroid use for different follow up times (1 month, 6 months, and 12 months or more postoperatively). Conclusion: Hearing preservation in cochlear implant surgery is feasible. A statistically significant difference was found between the round window procedure and cochleostomy approach, in favor of the round window procedure at 6 months postoperatively (p = 0.001). A statistically significant difference was found between the straight and the perimodiolar electrode array at 1 month postoperatively in favor of the straight electrode array (p < 0.001). No statistically significant difference was found between the other HP methods. The round window approach with the straight electrode array might result in a better HP outcome at 1 month and 6 months postoperatively compared with the cochleostomy approach with the perimodiolar electrode array. A declining trend in HP outcome in both combinations was seen over time.
Keywords
Cochlear implantation, Hearing preservation, Meta-analysis, Residual hearing, Sensorineural hearing loss, RESIDUAL HEARING, ELECTRODE, INSERTION, DEXAMETHASONE, CONSERVATION, STIMULATION, MULTICENTER, OUTCOMES, MODEL

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MLA
Snels, Chantal et al. “Hearing Preservation in Cochlear Implant Surgery : a Meta-analysis.” OTOLOGY & NEUROTOLOGY 40 (2018): 145–153. Print.
APA
Snels, C., IntHout, J., Mylanus, E., Huinck, W., & Dhooge, I. (2018). Hearing preservation in cochlear implant surgery : a meta-analysis. OTOLOGY & NEUROTOLOGY, 40, 145–153.
Chicago author-date
Snels, Chantal, Joanna IntHout, Emmanuel Mylanus, Wendy Huinck, and Ingeborg Dhooge. 2018. “Hearing Preservation in Cochlear Implant Surgery : a Meta-analysis.” Otology & Neurotology 40: 145–153.
Chicago author-date (all authors)
Snels, Chantal, Joanna IntHout, Emmanuel Mylanus, Wendy Huinck, and Ingeborg Dhooge. 2018. “Hearing Preservation in Cochlear Implant Surgery : a Meta-analysis.” Otology & Neurotology 40: 145–153.
Vancouver
1.
Snels C, IntHout J, Mylanus E, Huinck W, Dhooge I. Hearing preservation in cochlear implant surgery : a meta-analysis. OTOLOGY & NEUROTOLOGY. 2018;40:145–53.
IEEE
[1]
C. Snels, J. IntHout, E. Mylanus, W. Huinck, and I. Dhooge, “Hearing preservation in cochlear implant surgery : a meta-analysis,” OTOLOGY & NEUROTOLOGY, vol. 40, pp. 145–153, 2018.
@article{8604212,
  abstract     = {Objective(s): The aim of the present meta-analysis is to assess the effects of hearing preservation (HP) methods on residual hearing in patients undergoing cochlear implant (CI) surgery and to look at the effect of follow-up time on HP outcome. 
Data Sources: A systematic search was conducted in PubMed, Embase, and Cochrane Library. Only articles in English were included. 
Study Selection: Prospective studies published until January 2018 on hearing preservation methods were included. 
Data Extraction: Studies were assessed on unaided pre- and postoperative hearing thresholds, follow up time, and methodological quality. 
Data Synthesis: A random-effects meta-regression was performed for the HP outcome in relation to surgical technique, electrode array design, inserted electrode length, insertion speed, and corticosteroid use for different follow up times (1 month, 6 months, and 12 months or more postoperatively). 
Conclusion: Hearing preservation in cochlear implant surgery is feasible. A statistically significant difference was found between the round window procedure and cochleostomy approach, in favor of the round window procedure at 6 months postoperatively (p = 0.001). A statistically significant difference was found between the straight and the perimodiolar electrode array at 1 month postoperatively in favor of the straight electrode array (p < 0.001). No statistically significant difference was found between the other HP methods. The round window approach with the straight electrode array might result in a better HP outcome at 1 month and 6 months postoperatively compared with the cochleostomy approach with the perimodiolar electrode array. A declining trend in HP outcome in both combinations was seen over time.},
  author       = {Snels, Chantal and IntHout, Joanna and Mylanus, Emmanuel and Huinck, Wendy and Dhooge, Ingeborg},
  issn         = {1531-7129},
  journal      = {OTOLOGY & NEUROTOLOGY},
  keywords     = {Cochlear implantation,Hearing preservation,Meta-analysis,Residual hearing,Sensorineural hearing loss,RESIDUAL HEARING,ELECTRODE,INSERTION,DEXAMETHASONE,CONSERVATION,STIMULATION,MULTICENTER,OUTCOMES,MODEL},
  language     = {eng},
  pages        = {145--153},
  title        = {Hearing preservation in cochlear implant surgery : a meta-analysis},
  url          = {http://dx.doi.org/10.1097/MAO.0000000000002083},
  volume       = {40},
  year         = {2018},
}

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