PMID- 28534710
OWN - NLM
STAT- MEDLINE
DCOM- 20180409
LR  - 20181202
IS  - 1754-7628 (Electronic)
IS  - 1467-0100 (Linking)
VI  - 18
IP  - 4
DP  - 2017 Jul
TI  - Systematic review: Radiological and histological evidence of cochlear implant 
      insertion trauma in adult patients.
PG  - 192-197
LID - 10.1080/14670100.2017.1330735 [doi]
AB  - INTRODUCTION: Cochlear implantation (CI) has developed from its origins in the 
      1980s. Initially, CI was for profound bilateral hearing impairment. However, 
      candidacy for CI have become more widespread in recent years with unilateral 
      implantation and an emphasis on hearing preservation. Evidence supports full 
      electrode insertion in an atraumatic fashion into the scala tympani (ST) provides 
      optimal hearing outcomes. The main aim of this systematic review was to elucidate 
      the degree of trauma associated with CI insertion. METHODS: A systematic 
      literature search was undertaken using PubMed Medline. A grading system described 
      by Eshraghi was used to classify cochlear trauma. Both radiological and 
      histological studies were included. RESULTS: Twenty one papers were identified 
      which were relevant to our search. In total, 653 implants were inserted and 115 
      (17.6%) showed evidence of trauma. The cochleas with trauma had basilar membrane 
      elevation in 5.2%, ruptured in 5.2%, the electrode passed from the ST to the SV 
      in 84.4% and there was grade 4 trauma in 5.2%. The studies used a variety of 
      histological and radiological methods to assess for evidence of trauma in both 
      cadaveric temporal bones and live recipients. CONCLUSIONS: Minimizing cochlear 
      trauma during implant insertion is important to preserve residual hearing and 
      optimize audiological performance. An overall 17.6% trauma rate suggests that CI 
      insertion could be improved with more accurate and consistent electrode insertion 
      such as in the form of robotic guidance. The correlation of cochlea trauma with 
      post-operative hearing has yet to be determined.
FAU - Hoskison, Emma
AU  - Hoskison E
AD  - a University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital 
      , 58 Barcheston Road, Solihull, Knowle, Birmingham , UK.
FAU - Mitchell, Scott
AU  - Mitchell S
AD  - a University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital 
      , 58 Barcheston Road, Solihull, Knowle, Birmingham , UK.
FAU - Coulson, Chris
AU  - Coulson C
AD  - a University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital 
      , 58 Barcheston Road, Solihull, Knowle, Birmingham , UK.
LA  - eng
PT  - Journal Article
PT  - Review
PT  - Systematic Review
DEP - 20170523
PL  - England
TA  - Cochlear Implants Int
JT  - Cochlear implants international
JID - 101121166
SB  - IM
MH  - Adult
MH  - Basilar Membrane/diagnostic imaging/pathology/surgery
MH  - Cochlea/diagnostic imaging/*injuries/pathology
MH  - Cochlear Implantation/*adverse effects
MH  - Cochlear Implants/adverse effects
MH  - Female
MH  - Hearing Loss/surgery
MH  - Humans
MH  - Male
MH  - Postoperative Complications/*diagnostic imaging/etiology/*pathology
MH  - Radiography/methods
MH  - Scala Tympani/diagnostic imaging/pathology/surgery
MH  - Temporal Bone/diagnostic imaging/pathology/surgery
OTO - NOTNLM
OT  - Cochlear implants
OT  - Histology
OT  - Radiology
EDAT- 2017/05/24 06:00
MHDA- 2018/04/10 06:00
CRDT- 2017/05/24 06:00
PHST- 2017/05/24 06:00 [pubmed]
PHST- 2018/04/10 06:00 [medline]
PHST- 2017/05/24 06:00 [entrez]
AID - 10.1080/14670100.2017.1330735 [doi]
PST - ppublish
SO  - Cochlear Implants Int. 2017 Jul;18(4):192-197. doi: 
      10.1080/14670100.2017.1330735. Epub 2017 May 23.