{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T18:49:07Z","timestamp":1791830947041,"version":"4.3.4"},"reference-count":51,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T00:00:00Z","timestamp":1771977600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Audiology Research"],"abstract":"<jats:p>Objectives: To analyze speech perception outcomes of a cohort of experienced adult cochlear implant (CI) users to explore whether there is a correlation with electrical dynamic range (EDR) parameters, and to describe speech intelligibility curve morphology according to the degree of CI performance. Methods: A bicentric retrospective observational study. Data were extracted from a cochlear implantation database from a total of 36 CI users implanted with Advanced Bionics devices. Results: Mean age at implantation was 56.61 years. In the majority of cases, hearing loss onset was more than 15 years before implantation (80.55%), and only 11.11% of cases preserved residual hearing. This resulted in a significant relationship between speech therapy and better speech recognition (p = 0.044). At the same time, no correlation was found between age, duration of deafness before implantation, and maximum speech perception achieved (p &gt; 0.05). Mean speech audiometry curves displayed a roll-over phenomenon in poor performers and a plateau effect in average performers. In contrast, the mean curve of high performers exhibited a steeper morphology (p &lt; 0.0001). Speech recognition threshold (SRT) and word recognition score (WRS) were predictors of speech audiogram curves (p = 0.006). No direct correlation was found between the mean T-level, M-level, dynamic range, and maximum recognition score, even after clustering electrodes by position along the cochlea (p &gt; 0.05). Conclusions: EDR parameters did not emerge as independent predictors of speech recognition outcomes within this specific cohort. Speech therapy and rehabilitative efforts showed a significant relationship with improved performance, and speech audiogram curve morphology may offer a more specific clinical tool for assessing global CI performance. Further prospective studies with larger, more homogenous populations are required to validate these findings.<\/jats:p>","DOI":"10.3390\/audiolres16020031","type":"journal-article","created":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T10:59:16Z","timestamp":1772017156000},"page":"31","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Evaluating the Relationship Between Electrical Dynamic Range and Speech Perception Outcomes in Experienced Post-Lingually Deaf Adult Cochlear Implant Users: A Bicentric Study"],"prefix":"10.3390","volume":"16","author":[{"given":"Pietro","family":"Salvago","sequence":"first","affiliation":[{"name":"Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata (BiND), Sezione di Audiologia, Universit\u00e0 degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Davide","family":"Vaccaro","sequence":"additional","affiliation":[{"name":"Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata (BiND), Sezione di Audiologia, Universit\u00e0 degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4786-8435","authenticated-orcid":false,"given":"Fulvio","family":"Plescia","sequence":"additional","affiliation":[{"name":"Dipartimento di Promozione della Salute, Materno-Infantile, di Medicina Interna e Specialistica di Eccellenza \u201cG. D\u2019Alessandro\u201d, Universit\u00e0 degli Studi di Palermo, Via del Vespro 133, 90127 Palermo, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francesca","family":"Di Marco","sequence":"additional","affiliation":[{"name":"Advanced Bionics Italia, Via Privata Raimondo Montecuccoli, 30, 20147 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sabrina","family":"Loteta","sequence":"additional","affiliation":[{"name":"Dipartimento di Patologia Umana dell\u2019Adulto e dell\u2019Et\u00e0 Evolutiva \u201cGaetano Barresi\u201d, Universit\u00e0 degli Studi di Messina, Via Consolare Valeria 1, 98125 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2134-8535","authenticated-orcid":false,"given":"Daniele","family":"Portelli","sequence":"additional","affiliation":[{"name":"Dipartimento di Patologia Umana dell\u2019Adulto e dell\u2019Et\u00e0 Evolutiva \u201cGaetano Barresi\u201d, Universit\u00e0 degli Studi di Messina, Via Consolare Valeria 1, 98125 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-3947-8116","authenticated-orcid":false,"given":"Giuseppe","family":"Alberti","sequence":"additional","affiliation":[{"name":"Dipartimento di Patologia Umana dell\u2019Adulto e dell\u2019Et\u00e0 Evolutiva \u201cGaetano Barresi\u201d, Universit\u00e0 degli Studi di Messina, Via Consolare Valeria 1, 98125 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5844-9762","authenticated-orcid":false,"given":"Francesco","family":"Dispenza","sequence":"additional","affiliation":[{"name":"Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata (BiND), Sezione di Otorinolaringoiatria, Universit\u00e0 degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francesco","family":"Freni","sequence":"additional","affiliation":[{"name":"Dipartimento di Patologia Umana dell\u2019Adulto e dell\u2019Et\u00e0 Evolutiva \u201cGaetano Barresi\u201d, Universit\u00e0 degli Studi di Messina, Via Consolare Valeria 1, 98125 Messina, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pasquale","family":"Riccardi","sequence":"additional","affiliation":[{"name":"Advanced Bionics Italia, Via Privata Raimondo Montecuccoli, 30, 20147 Milan, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francesco","family":"Martines","sequence":"additional","affiliation":[{"name":"Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata (BiND), Sezione di Audiologia, Universit\u00e0 degli Studi di Palermo, Via del Vespro 129, 90127 Palermo, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,2,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Boisvert, I., Reis, M., Au, A., Cowan, R., and Dowell, R.C. 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