Inversion of the stapedial reflex in ossicular chain lesions.
In ears with minor conductive hearing loss of traumatic origin, it is sometimes possible to invert the deflection of the stapedial reflex by application of a small underpressure in the external auditory meatus of the injured ear (probe ear). This inversion can be explained by an ossicular discontinuity bridged by soft tissue.
D002648:Child; D006259:Craniocerebral Trauma / Q000150:complications; D004429:Ear Ossicles / Q000503:physiopathology*; D004431:Ear, External; D005260:Female; D034381:Hearing Loss / Q000503:physiopathology*; D006314:Hearing Loss, Conductive / Q000209:etiology / Q000503:physiopathology*; D006801:Humans; D008297:Male; D011312:Pressure; D012021:Reflex, Abnormal / Q000503:physiopathology*; D013199:Stapes / Q000503:physiopathology*