Most clinical studies on carbon dioxide (CO2) (lambda = 10.6 mm) laser stapedotomy have been carried out with the laser guided by a conventional lens-based micromanipulator, with the attendant risks of correct aiming (HeNe) and surgical (CO2) beam misalignment. Hence, engineering advances have attempted to improve laser targeting as well as the spot size focus. The development of the mirror-bas...

We prospectively studied 48 otosclerosis patients over a 2-year interval. Forty-four had stapedotomy, and four had stapedectomy. Demographics, clinical history, and pre- and postoperative audiometry results were recorded. A questionnaire asking about tinnitus (intensity, pitch) and including a visual analog scale quantifying the degree (1-10) of annoyance caused by the tinnitus was completed pr...

OBJECTIVE: Otosclerosis surgery is one of the otologic surgeries producing fastest results. It offers crucial advantages such as short operation time, high level satisfaction during postoperative hearing recovery and hospital stay. The purpose otosclerosis to relieve immobility in ossicular chain due disease provide voice transmission again. This study aims evaluate gain rates complications pat...

Classic theories of hearing have considered only a translational component (piston-like component) of the stapes motion as being the effective stimulus for cochlear activation and thus the sensation of hearing. Our previous study (Huber et al., 2008) qualitatively showed that rotational components around the long and short axes of the footplate (rocking-like components) lead to cochlear activat...

OBJECTIVES/HYPOTHESIS The performance of an ossicular replacement prosthesis (ORP) is influenced by its alignment and appropriate tension between the tympanic membrane and the stapes footplate. A novel ORP with a flexible element that potentially allows for length adjustment in situ is presented and tested for acoustic performance. STUDY DESIGN Laser Doppler vibrometry in fresh human cadaveri...

UNLABELLED Otosclerosis causes the fixation of the stapes and conductive hearing loss, usually corrected with the use of hearing aids or through stapedotomy and the replacement of the involved stapes with a prosthesis. Titanium has been the most recently used material of choice in stapedotomy prostheses. Only two prostheses are commercially available in Brazil. There are no reports in the liter...