ORL; journal for oto-rhino-laryngology and its related specialties · 2016
Hearing Restoration for Adults with Vestibular Schwannoma in the Only Hearing Ear: Ipsilateral or Contralateral Cochlear Implantation?
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Huo Zirong, Zhang Zhihua, Huang Qi, Yang Jun, Wang Zhaoyan, Li Yun, Huang Meiping, Wu Hao
Аннотация
OBJECTIVE: To explore auditory outcomes following cochlear implantation (CI) in patients with vestibular schwannoma (VS) in the only hearing ear.
METHODS: Three patients, all with a long history of hearing loss on one side and with newly diagnosed VS on the other side, underwent ipsilateral or contralateral CI. Their clinical data were collected retrospectively. Postoperative hearing outcomes were measured during follow-up and compared with the preoperative test results. A thorough search of the English-language literature was performed.
RESULTS: Patients 1 and 2 underwent CI in the ipsilateral and contralateral ear, respectively, without tumor removal; patient 3 underwent CI after tumor resection. At the last follow-up, the result of pure-tone audiometry was 25, 45, and 25 dB, respectively. An open-set speech discrimination score was achieved in all 3 patients, with monosyllabic word recognition of 60, 30, and 75%, respectively. Besides the patients included in our study, 28 CI cases with VS in the only hearing ear have been reported up to now.
CONCLUSIONS: In patients with VS in the only hearing ear, significant hearing deterioration with no obvious tumor growth is a good indication for ipsilateral CI. Long-term deafness in the tumor-free ear is not an absolute contraindication for CI.
METHODS: Three patients, all with a long history of hearing loss on one side and with newly diagnosed VS on the other side, underwent ipsilateral or contralateral CI. Their clinical data were collected retrospectively. Postoperative hearing outcomes were measured during follow-up and compared with the preoperative test results. A thorough search of the English-language literature was performed.
RESULTS: Patients 1 and 2 underwent CI in the ipsilateral and contralateral ear, respectively, without tumor removal; patient 3 underwent CI after tumor resection. At the last follow-up, the result of pure-tone audiometry was 25, 45, and 25 dB, respectively. An open-set speech discrimination score was achieved in all 3 patients, with monosyllabic word recognition of 60, 30, and 75%, respectively. Besides the patients included in our study, 28 CI cases with VS in the only hearing ear have been reported up to now.
CONCLUSIONS: In patients with VS in the only hearing ear, significant hearing deterioration with no obvious tumor growth is a good indication for ipsilateral CI. Long-term deafness in the tumor-free ear is not an absolute contraindication for CI.