Document Detail

Skin flap thickness in cochlear implant patients - a prospective study.
MedLine Citation:
PMID:  17854098     Owner:  NLM     Status:  MEDLINE    
The thickness and quality of the skin overlying a cochlear implant is important for its integrity. It should be thick enough to protect the implant and prevent flap breakdown yet should not be so thick that it impedes the electronic signal or causes difficulty wearing the coil because of loss of the magnetic coupling. The principle of this study was to devise a method to assess the thickness of skin over a cochlear implant receiver stimulator package and prospectively measure this thickness during the first year following surgery. All patients studied were implanted with MED-EL COMBI 40+ implants. The first cohort consisted of 35 adults; the second 23 children. Various methods of measurement were assessed. In this study the principle of the Hall Effect electrode was used to measure the magnetic flux density of the magnet within the receiver stimulator package. Following standardization, results showed that skin thickness significantly thinned in the adult group before stabilizing. This was less obvious in children, probably due to the effect of the skin thickening as the child grows. Knowledge of skin thickness has implications relating to the functioning of an implant and avoiding potential flap related complications.
C H Raine; C A Lee; D R Strachan; C T Totten; S Khan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cochlear implants international     Volume:  8     ISSN:  1467-0100     ISO Abbreviation:  Cochlear Implants Int     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-09-24     Completed Date:  2008-01-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101121166     Medline TA:  Cochlear Implants Int     Country:  England    
Other Details:
Languages:  eng     Pagination:  148-57     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2007 John Wiley & Sons, Ltd.
Yorkshire Cochlear Implant Service, Bradford Royal Infirmary, Bradford, UK.
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MeSH Terms
Child, Preschool
Cochlear Implantation*
Cochlear Implants
Cohort Studies
Equipment Design
Follow-Up Studies
Observer Variation
Postoperative Complications / pathology
Prospective Studies
Skin / pathology*
Surgical Flaps*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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