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Audiologic Gain of Incus Short Process Vibroplasty With Conventional Incus Long Process Vibroplasty: A Retrospective Analysis of 36 Patients

Lee, Jeon Mi*; Lee, Young Ho; Jung, Jinsei; Kim, Sung Huhn; Moon, In Seok; Choi, Jae Young

doi: 10.1097/MAO.0000000000001496
AUDIOLOGY
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Objective: To compare the audiological and non-audiological benefits of incus short process (SP) vibroplasty with those of conventional incus long process (LP) vibroplasty.

Study Design: Retrospective analysis.

Setting: Tertiary referral center.

Patients: Thirty-six patients with sensorineural hearing loss were treated with the semi-implantable middle ear hearing device. Of these, 22 were treated with conventional LP vibroplasty, and 14 were treated with SP vibroplasty using SP couplers.

Interventions: Implantation with the semi-implantable middle ear hearing device by different methods.

Main Outcome Measures: Pre- and postoperative hearing level, word recognition score, operation time, and duration of hospital stay were compared. We also surveyed a questionnaire to assess postoperative complications.

Results: The improvement in hearing gain was comparable between SP vibroplasty and conventional LP vibroplasty, except at 8 kHz, at which LP vibroplasty showed better hearing gain (p < 0.05). Patients undergoing SP vibroplasty had shorter operation time (p < 0.01) and duration of hospital stay (p < 0.01). While four patients who underwent incus LP vibroplasty experienced taste changes, none who underwent incus SP vibroplasty experienced any complications.

Conclusions: SP vibroplasty with the newly invented SP coupler could be a good alternative to conventional LP vibroplasty for treating patients with sensorineural hearing loss. Although both SP vibroplasty and LP vibroplasty produce good results, the former is associated with a shorter operation time and duration of hospital stay as well as fewer complications.

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*Department of Otorhinolaryngology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang

Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea

Address correspondence and reprint requests to In Seok Moon, M.D., Ph.D., Department of Otorhinolaryngology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea; E-mail: ismoonmd@yuhs.ac; Jae Young Choi, M.D., Ph.D., Department of Otorhinolaryngology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea; E-mail: jychoi@yuhs.ac

I.S.M. and J.Y.C. have contributed equally as correspondences to this work.

Funding: This work was supported by a faculty fund grant (6–2009–0154) funded by Yonsei University College of Medicine to J.Y.C.

The authors disclose no conflicts of interest.

Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (http://journals.lww.com/otology-neurotology).

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