咽鼓管异常开放功能的可能新评估方法：鼻腔内音调听力测定法。
Possible new assessment of patulous Eustachian tube function: audiometry for tones presented in the nasal cavity.
作者信息
Kano Shigeyuki, Kawase Tetsuaki, Baba Yasushi, Sato Toshinori, Kobayashi Toshimitsu
机构信息
Department of Otolaryngology, Head and Neck Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan.
出版信息
Acta Otolaryngol. 2004 May;124(4):431-5. doi: 10.1080/00016480410016306.
OBJECTIVE
To assess the acoustic transfer function of the Eustachian tube by means of audiometric measurements in order to evaluate the severity of the patulous condition.
MATERIAL AND METHODS
Detection thresholds for tones presented in the nasal cavity (at the nostril) were measured in subjects with a patulous Eustachian tube (PET) and in normal subjects.
RESULTS
In typical cases, these thresholds were lower in the subjects with PET and were markedly elevated to the same level as those of normal subjects by the insufflation of Lugol's solution (iodine solution). The pre- versus post-insufflation threshold differences seemed to reflect the effects of a patulous tube on the acoustic characteristics via the Eustachian tube. Based on the obtained results, sound patency via a patulous tube appeared to be dominant in lower frequency tones.
CONCLUSION
The present method seems to be another easy way to assess PET.
目的
通过听力测量评估咽鼓管的声传递功能，以评估咽鼓管异常开放状态的严重程度。
材料与方法
在咽鼓管异常开放（PET）患者和正常受试者中测量鼻腔（鼻孔处）呈现的纯音检测阈值。
结果
在典型病例中，PET患者的这些阈值较低，通过注入卢戈氏溶液（碘溶液）后，阈值明显升高至与正常受试者相同的水平。注入溶液前后的阈值差异似乎反映了异常开放的咽鼓管对声特性的影响。基于所得结果，通过异常开放的咽鼓管的声音通畅在低频纯音中似乎占主导地位。
结论
本方法似乎是评估PET的另一种简便方法。
Zotero 插件