Authors: Dzemal Gazibegovic Eva M Bero
Publish Date: 2016/08/11
Volume: 274, Issue: 2, Pages: 1147-1151
Abstract
The HiFocus MidScala electrode is intended to improve hearing for individuals with severetoprofound hearing loss by providing extended electrical coverage of the cochlea while minimizing trauma related to insertion The electrode is appropriate for use with a wide range of surgical techniques including either a cochleostomy or round window insertion and the use of either a freehand or toolassisted approach The objective of this survey was to evaluate how the HiFocus MidScala electrode and insertion tools was used across a population of cochlear implant recipients of differing ages audiologic profiles and anatomical characteristics The intent was to understand the type and frequency of surgical techniques applicable with the electrode and to provide guidelines for clinical practice Two questionnaires were completed by surgeons at implant centres located in the United States Europe and Asia Before any surgeries were conducted surgeons completed a questionnaire that assessed their overall cochlear implant surgical practice and preferences Following each HiFocus MidScala electrode insertion surgeons completed a questionnaire that summarized their experience during that surgical procedure Questionnaires were completed by 32 surgeons from 16 centres for a total of 143 surgeries 112 adults 31 children Most surgeons 62 preferred to insert the electrode via the round window or an extended round window compared with a cochleostomy 16 whereas the remaining 22 indicated that they made an insertion choice based on presenting anatomy Sixtynine percent preferred a freehand approach over using insertion tools In 32 procedures surgeons elected to deviate from an intended round window insertion to either an extended round window or cochleostomy approachThe authors thank the following surgeons for their participation in the survey Apollo Hospital Hyderabad India EC Vinay Kumar K Ram Babu Jaswinder Singh Chinese University of Hong Kong China Michael Tong J Sung CK Lam Duke University USA David Kaylie Debara Tucci Ear Medical Group USA Brian Perry Indiana Ear USA Michael J Disher Indiana University USA Charles W Yates Maastricht University Medical Centre The Netherlands Robert Sokroos J R Hof J van Tongeren New York Eye and Ear Infirmary USA George Alexiades Wontaek Choe Ronald Hoffman Ana H Kim Darius Kohan Neil Sperling Northwestern University USA Alan G Micco Tampa Bay Hearing and Balance USA Kyle Allen Loren Bartels Christopher Danner University Hospital St Augustinus Antwerp Belgium Erwin Offeciers Andrzej Zarowski University Medical Centre Ljubljana Slovenia Saba Battelino University of Arizona USA Abraham Jacob University of Arkansas USA John Dornhoffer University of Cincinnati USA Ravi N Samy University of Colorado USA Stephen Cass Herman Jenkins University of Kentucky USA Matthew Bush Raleigh O Jones
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