Conclusions : Available multichannel Cochlear Implants (CI) provide effective tinnitus suppression. More sophisticated speech strategies are more effective than analog or slow strategies. The mechanisms by which tinnitus is suppressed by cochlear implants are unclear, however both acoustic masking and reorganization of the right auditory association cortex induced by the CI are possible mechanisms. CI significantly reduced the tinnitus related handicap as assessed by the tinnitus handicap inventory. Objective : Evaluate the effects of a unilateral CI on bilaterally perceived tinnitus. Methods: Forty-one profoundly deaf patients implanted with a multichannel CI referring bilateral tinnitus were evaluated. All patients were asked to complete a questionnaire that evaluated the presence, location and intensity of tinnitus before and after cochlear implantation. Results: Seven patients (17%) reported after surgery the perception of a “new tinnitus”. With the CI off tinnitus was abolished in 23 patients (56.1%) in the implanted ear and in 22 patients (53.6%) in the contralateral ear. With the CI on tinnitus was abolished both in the ipsilateral ear in 27 patients (65.8%) and in the contralateral ear in 27 patients (65.8%). Statistical analysis showed a significant reduction of the total THI score and of each subscale score (p< 0.001).
The effect of unilateral multichannel cochlear implant on bilaterally perceived tinnitus
QUARANTA, Nicola Antonio Adolfo;
2008-01-01
Abstract
Conclusions : Available multichannel Cochlear Implants (CI) provide effective tinnitus suppression. More sophisticated speech strategies are more effective than analog or slow strategies. The mechanisms by which tinnitus is suppressed by cochlear implants are unclear, however both acoustic masking and reorganization of the right auditory association cortex induced by the CI are possible mechanisms. CI significantly reduced the tinnitus related handicap as assessed by the tinnitus handicap inventory. Objective : Evaluate the effects of a unilateral CI on bilaterally perceived tinnitus. Methods: Forty-one profoundly deaf patients implanted with a multichannel CI referring bilateral tinnitus were evaluated. All patients were asked to complete a questionnaire that evaluated the presence, location and intensity of tinnitus before and after cochlear implantation. Results: Seven patients (17%) reported after surgery the perception of a “new tinnitus”. With the CI off tinnitus was abolished in 23 patients (56.1%) in the implanted ear and in 22 patients (53.6%) in the contralateral ear. With the CI on tinnitus was abolished both in the ipsilateral ear in 27 patients (65.8%) and in the contralateral ear in 27 patients (65.8%). Statistical analysis showed a significant reduction of the total THI score and of each subscale score (p< 0.001).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
