The Cochlear Implant as a Tinnitus Treatment

The effect of cochlear implantation on tinnitus in patients with bilateral hearing loss: A systematic review

“…The current review reports a decrease in mean tinnitus questionnaires scores after unilateral implantation in all analyzed studies where the primary outcome was extractable . The overall total tinnitus suppression rates varied from 8% to 45% of patients after cochlear implantation .…”

“…In the study of Vallés‐Varela et al, the distinction between the implanted and contralateral ear was made as well, but different categories were used. The authors found a quantitative improvement in the implanted ear in 65% and in the contralateral ear in 50% of patients …”

“…In 10 studies the risk of bias was moderate, and in eight studies the risk of bias was high. Adequate randomization, treatment allocation, and blinding were not achieved in any of the included studies.…”

“…Most studies included CI candidates with or without preoperative tinnitus. In three studies, only patients with bilateral hearing loss and preoperative tinnitus perception were included . Mick et al compared the effect of cochlear implantation in patients with Ménière's disease and matched controls.…”

“…All studies reported on unilateral implanted patients. In two of the included studies, all patients within the study received the same type of cochlear implant . In the other studies, several brands and types of cochlear implants were used.…”