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Many cases of otosclerosis are thought to be inherited. Statistically, white, middle-aged women are most at risk. Understanding Otosclerosis. To fully understand the process inhibited by otosclerosis, we must first look at … otosclerosis audiological findings: audiogram. the first affect of otosclerosis: conductive loss below 1kHz cochlear otosclerosis may sometimes result in a mixed HL with a "cookie bite" pattern with both air and bone lines carhart notch: decreased bone conduction at 2kHz.

Cookie bite audiogram otosclerosis

The name originates from the audiogram, as someone suffering from this type of hearing loss has an audiogram curve that looks like a cookie with a bite taken out of it. Cookie bite hearing loss is a rare type of sensorineural hearing loss, which means that it is permanent, and a cure is not available. It is a rare condition in comparison to more commonly known types of hearing loss. The cause of the damage is usually genetic, although it can more rarely be caused by damage or disease.

With Cookie bite hearing loss the curve resembles a bite into something, like a cookie, hence the name. What is cookie bite hearing loss?

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Often, but not always, the damage caused by the disorder peaks sometime in the person’s thirties. While otosclerosis can lead to severe hearing loss, it rarely results in total Say you find in your audiogram that you have conductive losses in the low frequencies, often a sign of otosclerosis. You can then run a CT scan and possibly exploratory surgery to confirm.

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Sloping loss – Increasing degree of hearing loss at higher frequencies. This is the most common hearing loss and is caused by the ageing process and noise damage. Other – Less common shapes include reverse slopes, cookie bites, corner audiogram.

Route 1 is by direct vibration within the skull. Route 2 is by vibration of the ossicular chain, which is suspended within the skull. Pure cochlear otosclerosis should be suspected in patients with slowly progressive sensorineural hearing loss who have a family history of otosclerosis. The audiometric hearing loss pattern tends to be of a flat or ‘cookie bite’ type, and an on-off type stapedial reflex may be present. Reference Shambaugh 11 Cookie bite. Thresholds are better for the high and low frequencies than for the mid-range frequencies Thresholds are measured o lay for low frequencies near or at the limits of the audiogram. Bilateral noise exposure.
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“It obtained that identify as a result of when a affected person with this sample of listening to loss has an audiogram and the listening to thresholds are graphed, the sample is a ‘U’ that appears as if somebody took a chunk Cookie-bite hearing loss is when your audiogram results are shaped like a bell or the letter “U” and indicates mid-range frequency hearing loss.

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aa aah aahed aahing aahs aal aalii aaliis aals aardvark

The typical pattern of cochlear otosclerosis in the early stages is the “cookie bite”pattern where the greatest degree of hearing loss occurs in the mid-frequency hearing range and is characteristically a mixed hearing loss. (Hannley 1993).

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Symmetrical SNHL 4. SNHL cannot be attributed to any other cause 5. Flat, rising or cookie bite audiogram with Good Speech Discrimination Score 6. Fixation of stapes Presently CT findings are also required. Differential diagnosis Carhart’s notch (otosclerosis) Reason of Carhart notch: When the skull is vibrated by bone conduction sound, the sound is detected by the cochlea via three routes. Route 1 is by direct vibration within the skull. Route 2 is by vibration of the ossicular chain, which is suspended within the skull.

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Cookie Bite (U-Shape): some forms of hereditary hearing loss The audiogram is an important tool used to determine the degree and type of hearing the ossicles and lead to severe deafness in a condition termed otosclerosis. Someone suffering from cookie-bite or U-shaped configuration hearing Otosclerosis affects the bones of the middle ear that conduct sound. Sometimes called otospongiosis, it's one of the most common causes of progressive hearing audiocassettes audiogenic audiogram audiograms audiograph audiographs bitchinesses bitching bitchy bite biteable biteplate biteplates biter biters bites cookhouse cookhouses cookie cookies cooking cookings cookless cookmaid otoplasty otorrhoea otorrhoeas otoscleroses otosclerosis otoscope otoscopes audio. audiocassette. audiogram biscuit. Biscutella. bise.