Single-Sided Deafness, Cochlear Implants, and Speech Understanding
Zeitler et al (2015) reported on nine people (ages 12 to 63 years) with single-sided deafness (SSD) and normal hearing in the other ear, all of whom underwent cochlear implantation in the SSD ear. With regard to post-op speech understanding in noise, the authors report “one of our aims was to assess the value of a CI for SSD patients when the listening environment simulated a ‘real world’ situation, that is, listening in a restaurant where the talker was on the side of the CI. In this environment, each patient exhibited a large and significant improvement in speech understanding…” The authors report their findings are consistent with previous research which also indicated “better performance with a CI than with a CROS aid or a BAHA in similar environments.” Zeitler et al note that significant variance in patient outcomes is apparent, and the outcome have as of yet, not been predictable based on the studied demographic variables.
For More Information, References, and Recommendations
Baguley DM. (2010) Cochlear Implants in Single-Sided Deafness and Tinnitus. Seminars in Hearing 31(4):410-413.
Buechner A, Brendel M, Lesinki-schiedat A, Wenzel G, Frohne-Buechner C, Jaeger B, Lenarz T. (2010) Cochlear Implantation in Unilateral Deaf Subjects Associated With Ipsilateral Tinnitus. Otology & Neurotology 31(9):1381-1385.
Kitterick PT, O’Donoghue GM, Edmondson-Jones M, Marshall A, Jeffs E, Craddock L, Riley A, Green K, O’Driscoll M, Jiang D, Nunn T, Saeed S, Alesky W, Seeber BU. (2014) Comparison of the Benefits of Cochlear Implantation versus Contralateral Routing of Signal Hearing Aids in Adult Patients with Single-Sided Deafness—Study Protocol for a Prospective Within-Subject Longitudinal Trial. BMC Ear Nose Throat Disord 14:7.
Oeding K, Valente M. (2013) Sentence Recognition in Noise and Perceived Benefit of Noise Reduction on the Receiver and Transmitter Sides of a BiCROS Hearing Aid. Journal of the American Academy of Audiology 24:980-991.
Popelka GR, Derebery J, Blevins NH, Murray M, Moore BCJ, Sweetow RW, Wu B, Katsis M. (2010) Preliminary Evaluation of a Novel Bone-Conduction Device for Single-Sided Deafness. Otology & Neurotology 31:492-497.
Van Zon A, Peters JPM, Stegeman I, Smit AL, Grolman W. (2015) Cochlear Implantation for Patients with Single-Sided Deafness or Asymmetrical Hearing Loss--A Systematic Review of the Evidence. Otology & Neurotology 36:209-219.
Van De Heyning P, Vermeire K, Diebl M. (2008) Incapacitating Unilateral Tinnitus in Single Sided Deafness Treated by Cochlear Implantation. Ann Otol Rhinol 117:645-652.
Zeitler DM, Dorman MF, Natale SJ, Loiselle L, Yost WA, Gifford RH. (2015) Sound Source Localization and Speech Understanding in Complex Listening Environments by Single-Sided Deaf Listeners After Cochlear Implantation. Otology & Neurotology 36(9):1467-1471.