caa a22 4500 606183256 CHVBK 20210128100820.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s00405-014-3184-2 doi (NATIONALLICENCE)springer-10.1007/s00405-014-3184-2 Pattern of hearing loss following cochlear implantation [Elektronische Daten] [Eyal Raveh, Joseph Attias, Benny Nageris, Liora Kornreich, David Ulanovski] Cochlear implantation is associated with deterioration in hearing. Despite the fact that the damage is presumed to be of sensory origin, residual hearing is usually assessed by air-conduction thresholds alone. This study sought to determine if surgery may cause changes in air- and bone-conduction thresholds producing a mixed-type hearing loss. The sample included 18 patients (mean age 37years) with an air-bone gap of 10dB over three consecutive frequencies and measurable masked and reliable bone-conduction thresholds of operated and non-operated ears who underwent cochlear implant surgery. All underwent comprehensive audiologic and otologic assessment and imaging before and after surgery. The air-bone gap in the treated ears was 17-41dB preoperatively and 13-59dB postoperatively over 250-4,000Hz. Air-conduction thresholds in the treated ears significantly deteriorated after surgery, by a mean of 10-21dB. Bone-conduction levels deteriorated nonsignificantly by 0.8-7.5dB. The findings indicate that the increase in air-conduction threshold after cochlear implantation accounts for most of the postoperative increase in the air-bone gap. Changes in the mechanics of the inner ear may play an important role. Further studies in larger samples including objective measures of inner ear mechanics may add information on the source of the air-bone gap. Springer-Verlag Berlin Heidelberg, 2014 Cochlear implantation nationallicence Air-bone gap nationallicence Hearing loss nationallicence Inner ear anomaly nationallicence Raveh Eyal Department of Otorhinolaryngology, Schneider Children's Medical Center of Israel and Rabin Medical Center, 49202, Petach Tikva, Israel aut Attias Joseph Department of Communication Sciences and Disorders, University of Haifa, Haifa, Israel aut Nageris Benny Department of Otorhinolaryngology, Schneider Children's Medical Center of Israel and Rabin Medical Center, 49202, Petach Tikva, Israel aut Kornreich Liora Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel aut Ulanovski David Department of Otorhinolaryngology, Schneider Children's Medical Center of Israel and Rabin Medical Center, 49202, Petach Tikva, Israel aut European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/9(2015-09-01), 2261-2266 0937-4477 272:9<2261 2015 272 405 https://doi.org/10.1007/s00405-014-3184-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00405-014-3184-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Raveh Eyal Department of Otorhinolaryngology, Schneider Children's Medical Center of Israel and Rabin Medical Center, 49202, Petach Tikva, Israel aut NATIONALLICENCE 700 1- Attias Joseph Department of Communication Sciences and Disorders, University of Haifa, Haifa, Israel aut NATIONALLICENCE 700 1- Nageris Benny Department of Otorhinolaryngology, Schneider Children's Medical Center of Israel and Rabin Medical Center, 49202, Petach Tikva, Israel aut NATIONALLICENCE 700 1- Kornreich Liora Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel aut NATIONALLICENCE 700 1- Ulanovski David Department of Otorhinolaryngology, Schneider Children's Medical Center of Israel and Rabin Medical Center, 49202, Petach Tikva, Israel aut NATIONALLICENCE 773 0- European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/9(2015-09-01), 2261-2266 0937-4477 272:9<2261 2015 272 405