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Reliability and complications of 500 consecutive cochlear implantations.
Arch Otolaryngol Head Neck Surg. 2008 Dec; 134(12):1276-81.AO

Abstract

OBJECTIVES

To assess device failures as well as early postoperative, late postoperative, and medical complications occurring after cochlear implantation and to discuss their causes and treatments.

STUDY DESIGN

Retrospective study of 500 consecutive cochlear implantations.

SETTING

Tertiary referral center.

PATIENTS

All patients receiving cochlear implants at our institution between 1989 and 2006.

MAIN OUTCOME MEASURES

All complications and treatments were systematically reviewed with a maximum follow-up of 18 years. The number of reimplantations was calculated according to follow-up duration to determine the cochlear implant survival rate. Specific risks of reimplantation were calculated for groups with differing durations of implantation.

RESULTS

The overall rate of complications was 16.0% (79 of 500), with minor complications accounting for 5.6%; major complications, 3.2%; and reimplantations, 7.2%. Reasons for revision surgery were device failure, infection, trauma, and "soft device failure" (failure despite normal results from integrity testing). Revision surgery was performed in 51 of the 500 cases (10.2%), and other complications were managed medically (28 of 500; 5.6%). The rate of hard and soft device failures was 6% (30 of 500). Seventy-two percent of reimplantations occurred within 5 years. The risk of severe infection (eventually requiring explantation) was 1.4% (7 of 500). There was 1 case of transient facial palsy following surgery (0.2%), and the incidence of postsurgical meningitis was 0.

CONCLUSIONS

Cochlear implantation is a safe technique with a relatively low complication rate; however, certain complications may require specific attention to prevent or correct them.

Authors+Show Affiliations

Department of Otorhinolaryngology, University Hospital Gui de Chauliac, 80 Avenue Augustin Fliche, 34295 Montpellier, France. f-venail@chu-montpellier.frNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19075122

Citation

Venail, Frederic, et al. "Reliability and Complications of 500 Consecutive Cochlear Implantations." Archives of Otolaryngology--head & Neck Surgery, vol. 134, no. 12, 2008, pp. 1276-81.
Venail F, Sicard M, Piron JP, et al. Reliability and complications of 500 consecutive cochlear implantations. Arch Otolaryngol Head Neck Surg. 2008;134(12):1276-81.
Venail, F., Sicard, M., Piron, J. P., Levi, A., Artieres, F., Uziel, A., & Mondain, M. (2008). Reliability and complications of 500 consecutive cochlear implantations. Archives of Otolaryngology--head & Neck Surgery, 134(12), 1276-81. https://doi.org/10.1001/archoto.2008.504
Venail F, et al. Reliability and Complications of 500 Consecutive Cochlear Implantations. Arch Otolaryngol Head Neck Surg. 2008;134(12):1276-81. PubMed PMID: 19075122.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Reliability and complications of 500 consecutive cochlear implantations. AU - Venail,Frederic, AU - Sicard,Marielle, AU - Piron,Jean Pierre, AU - Levi,Ann, AU - Artieres,Francoise, AU - Uziel,Alain, AU - Mondain,Michel, PY - 2008/12/17/entrez PY - 2008/12/17/pubmed PY - 2009/1/14/medline SP - 1276 EP - 81 JF - Archives of otolaryngology--head & neck surgery JO - Arch. Otolaryngol. Head Neck Surg. VL - 134 IS - 12 N2 - OBJECTIVES: To assess device failures as well as early postoperative, late postoperative, and medical complications occurring after cochlear implantation and to discuss their causes and treatments. STUDY DESIGN: Retrospective study of 500 consecutive cochlear implantations. SETTING: Tertiary referral center. PATIENTS: All patients receiving cochlear implants at our institution between 1989 and 2006. MAIN OUTCOME MEASURES: All complications and treatments were systematically reviewed with a maximum follow-up of 18 years. The number of reimplantations was calculated according to follow-up duration to determine the cochlear implant survival rate. Specific risks of reimplantation were calculated for groups with differing durations of implantation. RESULTS: The overall rate of complications was 16.0% (79 of 500), with minor complications accounting for 5.6%; major complications, 3.2%; and reimplantations, 7.2%. Reasons for revision surgery were device failure, infection, trauma, and "soft device failure" (failure despite normal results from integrity testing). Revision surgery was performed in 51 of the 500 cases (10.2%), and other complications were managed medically (28 of 500; 5.6%). The rate of hard and soft device failures was 6% (30 of 500). Seventy-two percent of reimplantations occurred within 5 years. The risk of severe infection (eventually requiring explantation) was 1.4% (7 of 500). There was 1 case of transient facial palsy following surgery (0.2%), and the incidence of postsurgical meningitis was 0. CONCLUSIONS: Cochlear implantation is a safe technique with a relatively low complication rate; however, certain complications may require specific attention to prevent or correct them. SN - 1538-361X UR - https://www.unboundmedicine.com/medline/citation/19075122/Reliability_and_complications_of_500_consecutive_cochlear_implantations_ L2 - https://jamanetwork.com/journals/jamaotolaryngology/fullarticle/10.1001/archoto.2008.504 DB - PRIME DP - Unbound Medicine ER -