1. Study whether we can deduce low conductive hearing loss from the change of resonant frequency.

2. Results Among these 10 cases, 8 were conductive hearing loss, 2 were mixed hearing loss.

3. Patients can present with a sensation of ear fullness, tinnitus, or unilateral conductive hearing loss of the affected ear.

4. Objective:To assess the accuracy of threshold using the multiple auditory steady state responses (MASSR) to bone conduction stimuli in a group of patients with conductive hearing loss.

5. The results show that the finite element model with perforations may be useful to predict the conductive hearing loss resulting from a tympanic membrane perforation.

6. Objective To investigate the relationship between the resonant frequency and low frequency conductive hearing loss.

7. We present a unique case in which an infra-temporal arachnoid cyst eroded the tegmen tympani that caused conductive hearing loss, CSF otorrhea , and repeated meningitis.

8. Methods The ossicular reconstruction of 6 patients who suffered from middle conductive hearing loss were operated by the endoscope.