This is a report of three cases of mixed hearing loss that resulted from inner ear disorders. Two cases were unilateral and the third was bilateral. The diagnosis was based on the findings of normal middle and external ears in association with the absence of round window reflexes. The contralateral stapedial reflex was present in the two unilateral cases. This is the first documentation of cond...

Purpose: To perform audiological assessment in children and adolescents followed up at a reference outpatient clinic for autoimmune diseases, regardless of specific diagnoses. Methods: A single-blind case-control study was conducted. Participants were 48 patients with ages from 5 to 19 years and one to 151 months follow-up, categorized into three groups: 15 control individuals with pain in limb...

Acoustic Reflex Latency (ARL) is the time interval between onset of an intense auditory stimulus and onset of middle-ear muscle contraction. Unlike pure tone audiogram, the usual procedure to detect middle ear disorders and conductive hearing loss, ARL can differentiate between cochlear and retrocochlear pathologies, yields information about the nature of the conductive disorder, can detect mil...

Acoustic reflex is a sensitive indicator of middle ear lesions when the tympanic membrane is intact and tympanometry is normal. Acoustic reflex is not usually observed in conductive hearing loss caused by disruption of the ossicular chain including ossicular discontinuity and fixation. Ossicular disruption can show at least partially intact acoustic reflex under a certain condition. Moreover, o...

OBJECTIVE Trying to find an accurate relation between loudness discomfort level and acoustic reflex threshold. METHODS Seventy patients were involved in this study. Ten normal patients, 30 patients of unilateral conductive hearing loss and 30 patients of unilateral or bilateral, mild to moderate sensorineural hearing loss were tested by 1, 2, KH2 pure tones, 0.5, 1, 2, 4, 8 KHz narrow band no...

INTRODUCTION AND OBJECTIVES The sensitivity of prediction of acoustic reflex, in determining the level of hearing loss, is especially useful in paediatric populations. It is based on the difference between the pure tone stapedius reflex threshold and contralateral white noise. The white noise threshold was 60 dB and that of pure tone was 80 dB. Our objective was to determine the diagnostic sens...

background: participation is an important component in a child’s growth, which is not just affected by child's functional abilities, skills, interests and family culture; but also affected by the physical, social and institutional environment. hearing and visual impairment in children may cause growth delay including cognitive, mobility and communication skills. the aim of this study was to com...

Animal studies have shown that toluene can cause hearing loss and can exacerbate the effects of noise by inhibiting the middle ear acoustic reflex. In this investigation, carried out in Long-Evans rats, the tensor tympani tendon was cutoff and the stapedius muscle was electrocoagulated in one or both middle ears. Rat hearing was evaluated by measuring cubic distortion otoacoustic emissions (2f1...