Department of Otolaryngology-Head and Neck Surgery, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA.
Otol Neurotol. 2013 Jun;34(4):711-4. doi: 10.1097/MAO.0b013e31828daeca.
To review the tolerance of hearing aid use after revision and obliteration of a previously unstable canal wall down mastoidectomy cavity.
Retrospective case series.
Academic tertiary referral center.
Adults and children who underwent the described surgical procedure followed by attempted hearing aid use.
INTERVENTION(S): Surgical revision and obliteration of a chronically unstable canal wall down mastoidectomy cavity and subsequent attempted use of a conventional, ear-level hearing aid.
MAIN OUTCOME MEASURE(S): Stability of mastoid cavity after starting conventional hearing aid usage.
From a review of 87 consecutive mastoid obliteration procedures performed on previously unstable open cavities, 20 ears in 19 subjects were identified for study inclusion. The indication for hearing aid use was mixed hearing loss in the majority of subjects (85%). Among included ears, 7 (35%) had at least one documented temporary period of hearing aid nonuse because of otorrhea; however, permanent discontinuation of hearing aid use in favor of bone-anchored hearing implant placement only occurred in 3 ears (15%). The mean follow-up from the start of hearing aid use was 49 months.
Although failures do exist, attempted use of a hearing aid after revision of an unstable canal wall down mastoidectomy cavity seems feasible and generally well tolerated. However, the exact likelihood of achieving this result is yet uncertain, and hearing performance was not assessed in this study.
回顾先前不稳定的鼓室成形术后，经翻修和填塞后对助听器使用的耐受性。
回顾性病例系列。
学术三级转诊中心。
接受过描述性手术程序的成人和儿童，随后尝试使用助听器。
手术修复和填塞慢性不稳定的鼓室成形术后的鼓室腔，并随后尝试使用传统的耳级助听器。
开始使用常规助听器后乳突腔的稳定性。
在对先前不稳定的开放式乳突腔进行的 87 例连续乳突填塞手术中，有 20 只耳朵的 19 名患者被纳入研究。大多数患者（85%）的听力辅助使用指征为混合性听力损失。在纳入的耳朵中，有 7 只（35%）因耳漏而至少有一次记录到助听器暂时停用；然而，只有 3 只耳朵（15%）永久性地停止使用助听器，转而采用骨锚式听力植入物。从开始使用助听器起的平均随访时间为 49 个月。
尽管确实存在失败，但尝试在不稳定的鼓室成形术后使用助听器是可行的，且通常可耐受。然而，确切的成功可能性尚不确定，而且本研究并未评估听力表现。
