Incidence and indications for revision cochlear implant surgery in adults and children

Kevin D. Brown, Sarah S. Connell, Thomas J. Balkany, Adrien Eshraghi, Fred F Telischi, Simon I Angeli

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

Objectives/Hypothesis: To identify the incidence of and common causes for cochlear implant revision. Study Design: Retrospective case series. Methods: Operative records were reviewed for all cases of revision cochlear implantation from 1992 to 2006. The causes for reimplantation were classified as hard device failure, soft device failure, exposure/infection, receiver/stimulator migration, and electrode migration. Manufacturers' failure analysis of explanted devices was likewise determined. Results: Eight hundred and six cochlear implants were performed during the study period including 44 (5.5%) revision procedures. The revision rate was 7.3% for children and 3.8% for adults and reached statistical significant difference. The most common reasons for revision were device failure (78%; 55% hard failure, 23% soft failure) followed by electrode migration (9%) and receiver/stimulator migration (7%). Manufacturers' analysis of failed devices revealed loss of hermetic seal and cracked cases to be the most common causes of failure. Bench analysis of 5/10 explanted devices that were soft failures demonstrated identifiable device defects. Conclusions: Revision cochlear implant surgery is an infrequent occurrence. Its incidence appears to be higher in children than in adults, although in this series does not appear to be due to increased wound complications, infections, or trauma. Explanted implants that have soft failure as the etiology may have demonstrable defects on bench testing.

Original languageEnglish
Pages (from-to)152-157
Number of pages6
JournalLaryngoscope
Volume119
Issue number1
DOIs
StatePublished - Jan 1 2009

Fingerprint

Cochlear Implants
Equipment Failure
Equipment and Supplies
Incidence
Electrodes
Cochlear Implantation
Replantation
Wound Infection
Retrospective Studies
Wounds and Injuries
Infection

Keywords

  • Cochlear implant
  • Hard failure
  • Revision surgery
  • Soft failure

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Medicine(all)

Cite this

Incidence and indications for revision cochlear implant surgery in adults and children. / Brown, Kevin D.; Connell, Sarah S.; Balkany, Thomas J.; Eshraghi, Adrien; Telischi, Fred F; Angeli, Simon I.

In: Laryngoscope, Vol. 119, No. 1, 01.01.2009, p. 152-157.

Research output: Contribution to journalArticle

Brown, Kevin D. ; Connell, Sarah S. ; Balkany, Thomas J. ; Eshraghi, Adrien ; Telischi, Fred F ; Angeli, Simon I. / Incidence and indications for revision cochlear implant surgery in adults and children. In: Laryngoscope. 2009 ; Vol. 119, No. 1. pp. 152-157.
@article{05b86ec24a24456aaf65f42d9fbe621c,
title = "Incidence and indications for revision cochlear implant surgery in adults and children",
abstract = "Objectives/Hypothesis: To identify the incidence of and common causes for cochlear implant revision. Study Design: Retrospective case series. Methods: Operative records were reviewed for all cases of revision cochlear implantation from 1992 to 2006. The causes for reimplantation were classified as hard device failure, soft device failure, exposure/infection, receiver/stimulator migration, and electrode migration. Manufacturers' failure analysis of explanted devices was likewise determined. Results: Eight hundred and six cochlear implants were performed during the study period including 44 (5.5{\%}) revision procedures. The revision rate was 7.3{\%} for children and 3.8{\%} for adults and reached statistical significant difference. The most common reasons for revision were device failure (78{\%}; 55{\%} hard failure, 23{\%} soft failure) followed by electrode migration (9{\%}) and receiver/stimulator migration (7{\%}). Manufacturers' analysis of failed devices revealed loss of hermetic seal and cracked cases to be the most common causes of failure. Bench analysis of 5/10 explanted devices that were soft failures demonstrated identifiable device defects. Conclusions: Revision cochlear implant surgery is an infrequent occurrence. Its incidence appears to be higher in children than in adults, although in this series does not appear to be due to increased wound complications, infections, or trauma. Explanted implants that have soft failure as the etiology may have demonstrable defects on bench testing.",
keywords = "Cochlear implant, Hard failure, Revision surgery, Soft failure",
author = "Brown, {Kevin D.} and Connell, {Sarah S.} and Balkany, {Thomas J.} and Adrien Eshraghi and Telischi, {Fred F} and Angeli, {Simon I}",
year = "2009",
month = "1",
day = "1",
doi = "10.1002/lary.20012",
language = "English",
volume = "119",
pages = "152--157",
journal = "Laryngoscope",
issn = "0023-852X",
publisher = "Wiley-Blackwell",
number = "1",

}

TY - JOUR

T1 - Incidence and indications for revision cochlear implant surgery in adults and children

AU - Brown, Kevin D.

AU - Connell, Sarah S.

AU - Balkany, Thomas J.

AU - Eshraghi, Adrien

AU - Telischi, Fred F

AU - Angeli, Simon I

PY - 2009/1/1

Y1 - 2009/1/1

N2 - Objectives/Hypothesis: To identify the incidence of and common causes for cochlear implant revision. Study Design: Retrospective case series. Methods: Operative records were reviewed for all cases of revision cochlear implantation from 1992 to 2006. The causes for reimplantation were classified as hard device failure, soft device failure, exposure/infection, receiver/stimulator migration, and electrode migration. Manufacturers' failure analysis of explanted devices was likewise determined. Results: Eight hundred and six cochlear implants were performed during the study period including 44 (5.5%) revision procedures. The revision rate was 7.3% for children and 3.8% for adults and reached statistical significant difference. The most common reasons for revision were device failure (78%; 55% hard failure, 23% soft failure) followed by electrode migration (9%) and receiver/stimulator migration (7%). Manufacturers' analysis of failed devices revealed loss of hermetic seal and cracked cases to be the most common causes of failure. Bench analysis of 5/10 explanted devices that were soft failures demonstrated identifiable device defects. Conclusions: Revision cochlear implant surgery is an infrequent occurrence. Its incidence appears to be higher in children than in adults, although in this series does not appear to be due to increased wound complications, infections, or trauma. Explanted implants that have soft failure as the etiology may have demonstrable defects on bench testing.

AB - Objectives/Hypothesis: To identify the incidence of and common causes for cochlear implant revision. Study Design: Retrospective case series. Methods: Operative records were reviewed for all cases of revision cochlear implantation from 1992 to 2006. The causes for reimplantation were classified as hard device failure, soft device failure, exposure/infection, receiver/stimulator migration, and electrode migration. Manufacturers' failure analysis of explanted devices was likewise determined. Results: Eight hundred and six cochlear implants were performed during the study period including 44 (5.5%) revision procedures. The revision rate was 7.3% for children and 3.8% for adults and reached statistical significant difference. The most common reasons for revision were device failure (78%; 55% hard failure, 23% soft failure) followed by electrode migration (9%) and receiver/stimulator migration (7%). Manufacturers' analysis of failed devices revealed loss of hermetic seal and cracked cases to be the most common causes of failure. Bench analysis of 5/10 explanted devices that were soft failures demonstrated identifiable device defects. Conclusions: Revision cochlear implant surgery is an infrequent occurrence. Its incidence appears to be higher in children than in adults, although in this series does not appear to be due to increased wound complications, infections, or trauma. Explanted implants that have soft failure as the etiology may have demonstrable defects on bench testing.

KW - Cochlear implant

KW - Hard failure

KW - Revision surgery

KW - Soft failure

UR - http://www.scopus.com/inward/record.url?scp=63249122989&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=63249122989&partnerID=8YFLogxK

U2 - 10.1002/lary.20012

DO - 10.1002/lary.20012

M3 - Article

VL - 119

SP - 152

EP - 157

JO - Laryngoscope

JF - Laryngoscope

SN - 0023-852X

IS - 1

ER -