发声诱发的镫骨肌收缩。
Vocalization-induced stapedius contraction.
作者信息
Rainsbury James W, Aron Margaret, Floyd Duncan, Bance Manohar
机构信息
*Division of Otolaryngology, Dalhousie University, Halifax, Nova Scotia, Canada †Derriford Hospital, Plymouth, Devon, U.K.; ‡Division of Otolaryngology, Dalhousie University, Halifax; and §Nova Scotia Hearing and Speech Centers, Dalhousie University, Nova Scotia, Canada.
出版信息
Otol Neurotol. 2015 Feb;36(2):382-5. doi: 10.1097/MAO.0000000000000447.
OBJECTIVE
To present a case of a patient with visible stapedius contraction on vocalization and to discuss the related literature.
PATIENTS
A 51 year-old woman with a Type III myringostapediopexy due to chronic suppurative otitis media and an incidental finding of voice-induced movement of the stapes head.
INTERVENTIONS
Otoendoscopy, pure tone and impedance audiometry, and modified stapedius reflex decay.
MAIN OUTCOME MEASURE
Stapes head movement on otoendoscopy.
RESULTS
Stapes head movement was seen endoscopically on vocalization but not on tympanometric measures.
CONCLUSION
Visible stapedius contraction with vocalization is an uncommon phenomenon. Our understanding of the nonauditory pathways to stapedius is limited and requires further research.
目的
报告一例发声时镫骨肌可见收缩的患者病例并讨论相关文献。
患者
一名51岁女性，因慢性化脓性中耳炎接受III型鼓膜镫骨固定术，偶然发现发声引起镫骨头运动。
干预措施
耳内镜检查、纯音及声阻抗测听，以及改良镫骨肌反射衰减试验。
主要观察指标
耳内镜下镫骨头运动情况。
结果
耳内镜检查可见发声时镫骨头运动，但鼓室导抗测量未见此现象。
结论
发声时镫骨肌可见收缩是一种罕见现象。我们对镫骨肌非听觉通路的了解有限，需要进一步研究。
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