Ossicular Chain Reconstruction With Glass Ionomer Cement Following Removal of Active Middle Ear Implant.

The use of bone cement in ossicular chain reconstruction (OCR) represents an area of recent interest. This multi-institutional retrospective study assesses the efficacy of glass ionomer cement (GIC) in OCR following the explantation of a fully implantable active middle ear implant. A postoperative 4-frequency mean air-bone gap (ABG) was obtained for 15 subjects by averaging 0.

Totally implantable active middle-ear implants: a large, single-surgeon cohort.

Objectives: This study aimed to evaluate hearing outcomes and device safety in a large, single-surgeon experience with the totally implantable active middle-ear implants.

Methods: This was a retrospective case series review of 116 patients with moderate-to-severe sensorineural hearing loss undergoing implantation of active middle-ear implants.

Results: Mean baseline unaided pure tone average improved from 57.

Tympanic membrane perforation repair using AlloDerm.

Background: Some patients lack quality autologous tissue for tympanic membrane (TM) grafting. AlloDerm (LifeCell Corp, The Woodlands, TX) is a preserved allograft that has been effective in nonotologic applications.

Objective: The goal of this study was to investigate AlloDerm in the repair of chronic TM perforations.

Otologic injuries caused by airbag deployment.

Airbags are clearly successful at mitigating injury severity during motor vehicle accidents. Deployment unfortunately has introduced new injury-causing mechanisms. A retrospective review of 20 patients who sustained otologic injuries resulting from airbag inflation was conducted.

Central nervous system metabolic activity after cochlear implantation in the feline neonatal model.

Objective: To determine the effects of deafening and cochlear implant stimulation on central nervous system (CNS) metabolic activity in the feline neonate model.

Background: Deafening of fetal animals has been shown to result in acute, profound depression of CNS glucose metabolism, in both auditory structures and the cerebral hemispheres. Preliminary studies have suggested that electrical stimulation of the auditory system may increase central nervous metabolic activity after deafening.