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Reliability of the otologics Carina® totally implantable active middle ear transducer: A retrospective
study in 136 devices
Truy E. , Debeaupte M. , Deveze A. , Martin C. , Dubreuil C. , Tringali S.
Université de Lyon, Lyon, France, 2Hopital Edouard Herriot, Lyon, France, 3Université de la Méditerrannée, Marseille, France, 4Université de
Saint-Etienne, Saint-Etienne, France
Design: Prospective, multicenter at 6 university tertiary referal centers.
Aim: To assess the reliability of the Otologic Carina® Active Middle Ear Implant (AMEI) as a function of different
technological evolutions across time.
Population: 157 Carina® AMEI (Otologics , Boulders, Colorado, USA) implanted during period of survey;
136 devices were included in the study. Bilateraly implanted patients were n=8. All implantees between
September 2005 and July 2012 were included. Number of AMEIs' changings was n=26; 19 devices with lots of
follow-up or no available data were excluded. This sample represents 86,6 % of all the Otologics Carina® AMEIs
implanted in France during this period. Types of hearing losses were : perceptive n = 93, and conductive / Mixte :
n = 30. 6 University tertieral referral centers in France participated (Lyon, Marseille, Clermont-Ferrand, SaintEtienne, Bordeaux, Dijon); Types of AMEIs: Carina® G3 with transducer T1 (G3-T1) from September 2005 ;
Carina® G3 with modified battery (G3T1) from October 2006; Carina® + : G3 with modified antenna and
microphone (G3+T1) from April 2008; Carina® G4 with transducer T2 (G4-T2) from August 2010; Carina® G4
with transducer T2 and modified connector (G4T2) from December 2010
Methods: Survival rate of differents devices. This took count of technologic breakdowns. Other causes for
explantation (medical problems, trauma) were analyzed.
Results: Figure displays the percentage of cumulative breakdowns. Over time according to different devices
[carina reliability]
Conclusions: We observed in an independent survey that the reliability of the Otologics Carina® AMEI
improved dramatically over time according to technological changes.