Subtotal petrosectomy with cochlear implantation showed functional outcomes comparable to standard implantation in adults with postlingual deafness and chronic otitis media.
This retrospective case-control study examined functional and surgical outcomes in 34 adults with postlingual deafness. The cohort included 17 patients undergoing subtotal petrosectomy (SP) with simultaneous cochlear implantation (CI) and 17 standard CI recipients without middle ear disease. The primary focus was on functional and surgical outcomes, with secondary assessments including pure-tone audiometry, speech recognition in quiet and noise, and the Speech, Spatial, and Qualities of Hearing Scale (SSQ). Follow-up data were collected at a mean of 36 months.
Regarding functional outcomes, pure-tone average at 500 Hz (PTA5) scores were 36.6 versus 35.6 (p = 0.09). Speech recognition in quiet was 74.2 versus 85.0 (p = 0.07). Speech recognition in noise scores were 2.7 versus 0.7 (p = 0.58). SSQ subscales for speech, spatial, and qualities yielded scores of 4.73 versus 4.80 (p = 0.69), 4.22 versus 4.96 (p = 0.50), and 5.17 versus 5.25 (p = 0.87), respectively. None of these differences reached statistical significance.
Safety data indicated two minor postoperative complications: one ear canal closure breakdown and one abdominal hematoma. No serious adverse events or discontinuations were reported. The study had no reported limitations, funding sources, or conflicts of interest. Given the retrospective nature and small sample size, these results should be interpreted with caution when considering surgical options for this specific population.
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