Experimental round window rupture with middle ear effusion.
The effects of laceration of the round window membrane were investigated using the auditory brainstem response in guinea pigs with or without middle ear effusion. Sensorineural hearing impairment occurred in the lower basal turn of the cochlea with middle ear effusion. However, only temporary and mild hearing loss was observed in guinea pigs without middle ear effusion.
D000818:Animals; D003051:Cochlea; D005072:Evoked Potentials, Auditory; D006168:Guinea Pigs; D006319:Hearing Loss, Sensorineural / Q000209:etiology* / Q000503:physiopathology; D010033:Otitis Media / Q000150:complications* / Q000503:physiopathology; D012405:Round Window, Ear; D012422:Rupture, Spontaneous