Normative wideband acoustic immittance patterns for middle ear evaluation in dogs.

The objective of this study was to investigate the clinical use of wideband acoustic immittance (WAI) reflectance for middle ear assessment in dogs. Otoscopy and brainstem auditory evoked response testing was performed on all dogs prior to the WAI assessment. Following calibration, dogs were comfortably restrained while the probe was placed into the ear canal to obtain recordings.

Auditory changes following firearm noise exposure, a review.

Firearms produce peak sound pressure levels (peak SPL) between ∼130 and 175 dB peak SPL, creating significant risk of noise-induced hearing loss (NIHL) in those exposed to firearm noise during occupational, recreational, and/or military operations. Noise-induced tinnitus and hearing loss are common in military service members, public safety officers, and hunters/shooters. Given the significant risk of NIHL due to firearm and other noise sources, there is an interest in, and demand for, interventions to prevent and/or treat NIHL in high-risk populations.

Hearing loss in police K9 handlers and non-K9 handlers.

The objective of this study was to assess and compare the hearing of police K9 handlers and non-K9 handlers. Cross-sectional design. Hearing was assessed on 30 police officers, 12 K9 handlers and 18 non-K9 handlers, from Northeast Ohio.