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What Is Otosclerosis? Symptoms & Diagnosis| NIDCD
https://www.nidcd.nih.gov/health/otosclerosis
The first step in a diagnosis is to rule out other diseases or health problems that can cause the same symptoms as otosclerosis. Next steps include hearing tests that measure hearing sensitivity (audiogram) and middle-ear sound conduction (tympanogram). Sometimes, imaging tests—such as a CT scan—are also used to diagnose otosclerosis.
Audiological Evaluation of the Patient with Otosclerosis ...
https://entokey.com/audiological-evaluation-of-the-patient-with-otosclerosis/
This helps to determine if stapedial or cochlear otosclerosis is present. This in turn helps the surgeon make a decision as to which ear he or she should operate and helps predict optimum postoperative results. Figure 4–2 (A) Pure tone audiogram of a patient suffering from fenestral otosclerosis. Note Carhart’s notch at 2000 Hz.
The Audiology of Otosclerosis - PubMed
https://pubmed.ncbi.nlm.nih.gov/29397946/
Diagnostic audiologic procedures for otosclerosis are effective tools in identifying this condition. Audiometric data usually demonstrate a conductive hearing loss at the early stages of otosclerosis. Modern middle ear analysis procedures are becoming more popular in the better diagnosis of otoscler …
Audiological evaluation of the patient with otosclerosis
https://drchrisdesouza.com/ENT-surgeon/audiological-investigation-of-otosclerosis.htm
In otosclerosis thee is a characteristic bone conduction curve and this helps the clinician in distinguishing otosclerosis from other causes of conductive hearing losses. The clinician can determine with accuracy the degrees of sensorineural reserve by correcting the bone conduction audiogram for mechanical distortion due to stapes fixation.
Carhart notch and electric bone-conduction audiometry
https://pubmed.ncbi.nlm.nih.gov/8085115/
The Carhart notch is a depression in the bone-conduction audiogram of patients with clinical otosclerosis. The middle frequencies from 0.5 to 2 kHz, which correspond to the resonance frequency of the middle ear, can be substantially improved following successful stapes surgery. Twenty-nine consecuti …
Otosclerosis causes, symptoms, diagnosis and …
https://healthjade.net/otosclerosis/
Otosclerosis audiogram. The audiogram with worse air-conduction thresholds at low frequencies, below 1-2 kHz, is typical for otosclerosis 1). Sometimes, in an audiogram with a drop in bone-conduction thresholds at 2 kHz, a “notch” is noted describing a decrease in cochlear sensitivity.
Otosclerosis: An update on diagnosis and treatment ...
https://journals.lww.com/jaapa/Fulltext/2017/02000/Otosclerosis__An_update_on_diagnosis_and_treatment.3.aspx
Otosclerosis progression can be monitored by an audiogram because the progression of the disease directly correlates to hearing loss. When the ossicles stiffen and the connection between the stapes and oval window begins to change, a low-frequency mild conductive loss (small air-bone gap) will occur (). 18 The air-bone gap is the difference between air and bone conduction; …
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