Chang C Y Joseph
Texas Ear Center, 7900 Fannin, Suite 1800, Houston, TX 77054, USA; Department of Otorhinolaryngology-Head and Neck Surgery, University of Texas McGovern Medical School, Houston, TX, USA.
Otolaryngol Clin North Am. 2019 Apr;52(2):273-283. doi: 10.1016/j.otc.2018.11.014.
Active auditory implants, such as the Maxum, provide significantly improved hearing function compared to hearing aids in patients with moderate to severe hearing loss who are not reaching their cochlear hearing potential. The speech perception gap (SPG), defined as PB Max (phonetically balanced maximum) minus word recognition score with hearing aid, is a useful measure of inadequate hearing aid performance. The Maxum middle ear implant provides significantly improved performance over hearing aids in patients with significant SPG because of superior high frequency gain. Patients with PB Max 60% or greater with SPG are possible candidates for the implant.
主动式听觉植入设备，如Maxum，与助听器相比，能为那些未达到耳蜗听觉潜能的中重度听力损失患者显著改善听力功能。言语感知差距（SPG）定义为PB Max（语音平衡最大值）减去使用助听器时的单词识别分数，是衡量助听器性能不足的一个有用指标。由于具有卓越的高频增益，Maxum中耳植入设备在有显著言语感知差距的患者中，其性能比助听器有显著改善。PB Max达到60%或更高且存在言语感知差距的患者有可能适合植入该设备。
