OBJECTIVES/HYPOTHESIS The murine model has been used extensively to model and study human deafness. Technical difficulty in the surgical approach due to the small size of the tympanic bulla and a robust stapedial artery has limited its application for studies of cochlear implantation and electrical stimulation. We describe a minimally traumatic, stapedial artery-sparing approach to the round wi...

Lasers have been proven to be precise tools for bone ablation. Applying no mechanical stress to the patient, they are potentially very suitable for microsurgery on fragile structures such as the inner ear. However, it remains challenging to control the laser-bone ablation without injuring embedded soft tissue. In this work, we demonstrate a closed-loop control of a short-pulsed CO2 laser to per...

Cochlear implantation may cause a detrimental effect on vestibular function and residual hearing. A significant number of patients with cochlear implant present vertigo. There are several mechanisms for dizziness following implantations. The causes be surgical trauma, disruption normal physiology, or ensuing endolymphatic hydrops. Vibratory trauma affecting the cochlea during cochleostomy plays...

HYPOTHESIS Insertion forces can be reduced by magnetically guiding the tip of lateral-wall cochlear-implant electrode arrays during insertion via both cochleostomy and the round window. BACKGROUND Steerable electrode arrays have the potential to minimize intracochlear trauma by reducing the severity of contact between the electrode-array tip and the cochlear wall. However, steerable electrode...

In cochlear implantation (CI), the insertion of the electrode array into the appropriate compartment of the cochlea, the scala tympani, is important for an optimal hearing outcome. The current surgical technique for CI depends primarily on the surgeon's skills and experience level to achieve the correct placement of the electrode array, and the surgeon needs to confirm that the exact placement ...

Hypothesis: High-resolution imaging as provided by flat-panel based Volume Computed Tomography (fpVCT) could increase navigation accuracy and could therefore be valuable on lateral skull base procedures. O. Majdani S. Bartling Th. Rodt Methods: In the first part of the study we evaluated the accuracy of the image guided surgery (IGS) system using a custommade phantom that H. Eilers was scanned ...

Different types of lasers have been used in inner ear surgery. Therefore, it is of the utmost importance to avoid damage to the inner ear (e.g., hyperthermia and acoustic effects) caused by the use of such lasers. The aim of this study was to use a high powered fibre-enabled CO2 laser (10 W, 606 J/cm2) to perform cochleostomies on guinea pig cochlea and to investigate the possible laser-induced...

Introduction The cochlear implant (CI) procedure in patients with inner ear malformations is challenging. aim of this study was to evaluate auditory perception and speech development children enlarged vestibular aqueduct (EVA) relate the results diagnosis Pendred syndrome (PS), imaging findings, surgical course, postoperative period. Material methods group consisted 49 EVA, aged 11 months 15 ye...

The marmoset (Callithrix jacchus) is a valuable non-human primate model for studying behavioral and neural mechanisms related to vocal communication. It is also well suited for investigating neural mechanisms related to cochlear implants. The purpose of this study was to characterize marmoset temporal bone anatomy and investigate the feasibility of implanting a multi-channel intracochlear elect...