Presbycusis and balance disorders in the elderly. Bibliographical review of ethiopathogenic aspects, consequences on quality of life and positive effects of its treatment.

At this time, we still do not have adequate knowledge and awareness of the consequences of hearing loss in the elderly on quality of life. Similarly, there is also insufficient information on the relationship of presbycusis and balance disorders with other comorbidities. Such knowledge can contribute to improve both prevention and treatment of these pathologies, to reduce their impact on other areas such as cognition or autonomy, as well as to have more accurate information on the economic impact they generate in society and in the health system.

Promontorial cochleostomy in nonhuman primates. Is it atraumatic?

The purpose of this study is to determine if surgical approach to the inner ear is feasible without generating a hearing loss in an animal model. Five Macaca fascicularis were used as experimental animals and followed up for 27 months. Mastoidectomy, posterior tympanotomy and promontorial cochleostomy were performed on four specimens and one specimen was kept as control animal.

Atraumatic surgical approach to the cochlea with a micromanipulator.

Conclusions: Our design and preliminary results show that the the micromanipulator could be a great help to the surgeon in the atraumatic surgical approach to the lateral wall of the cochlea at the promontory.

Objectives: Hearing preservation in cochlear implant opens new frontiers in the treatment of sensorineural hearing loss. To preserve the membranous labyrinth intact, new surgical tools are needed, either for cochlear implantation or for other applications.

Morphometry of the human cochlear wall and implications for cochlear surgery.

Objective: To study the lateral wall of the cochlea in human temporal bones (TBs), in order to evaluate the feasibility of performing micro-dissection of the spiral ligament and an endosteal electrode implantation.

Material And Methods: We reviewed the database of the TB bank of The House Ear Institute in search of bones that did not distort the otic capsule or spiral ligament, and selected 36 horizontally sectioned TBs. All bones had been removed using the en bloc technique, fixed in formalin, decalcified in EDTA, embedded in celloidin and cut into 20-pm serial sections.