耳硬化症に対するアブミ骨手術の治療成績

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  • Surgical Outcomes in Patients with Otosclerosis: A Retrospective Study of 31 Ears
  • ミミ コウカショウ ニ タイスル アブミ ホネ シュジュツ ノ チリョウ セイセキ

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<p>Introduction: This retrospective study was aimed at evaluating the surgical outcomes of 31 ears of patients with otosclerosis who had undergone primary stapedial surgery at the Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science hospital, between October 2004 and September 2022.</p><p>Methods: Pure tone audiometry using three frequency averages (0.5, 1, and 2 kHz) was performed pre-and post-surgery. The postoperative audiometric data were obtained at least six months after the surgery. We evaluated the surgical outcomes according to the guideline for reporting hearing results in middle ear and mastoid surgery (2010) proposed by the Japan Otological Society. We compared the surgical outcomes and incidence of perioperative adverse events between the Skeeter drill use group and KTP laser use group.</p><p>Results: The patients consisted of 10 men and 18 women, with an average age of 49.0 years (41.5–55.5). We performed stapedotomy in 27 ears, total stapedectomy in 2 ears, partial stapedectomy in 1 ear, and stapedial mobilization in 1 ear. The overall success rate was 90.3%; a postoperative air-bone gap of 15 dB or less was obtained in 83.9% of cases, improvement of the hearing level by 15 dB or more was achieved in 87.1% of cases, and a postoperative hearing level of 30 dB or less was achieved in 35.5% of cases. There were no significant differences in either the surgical outcomes or the incidence rates perioperative adverse events between the Skeeter drill group and KTP laser group.</p><p>Conclusion: The overall surgical outcomes and incidence of perioperative adverse events in the Skeeter drill group and KTP laser group were comparable, with no significant differences. We could perform safe and effective surgery with both devices.</p>

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