OTOSCLEROSIS POLL - Hearing Disorders Message Board

CORA · 06-24-2003, 04:46 AM

Hi everybody
I am conducting a poll in order to find out how common is the presence of cochlear otosclerosis to sufferers of the disease.
1)How many of you with otosclerosis have also a degree of sensorineural loss?
2)Could you indicate when was your latest audiogram and how much nerve loss you had then from each ear (in DB in various frequencies)?
3)Please compare your latest audiogram to one you had at least ten years earlier. Is there a drop in the bone curve (sensorineural) and how much is this (in DB in various frequencies).

Thank you for your answers. I hope we can come to some conclusions regarding the progression of this desease.

zip2play · 06-24-2003, 01:30 PM

Cora,

I think it's only the three of us (You, caz and I), so you;ll only get numbers from the two of us and caz judged her stapedectomy a failure because of extensive bone proliferation.

So you'll have only ME as your poll...LOL

I'm having an "after" audiological evaluation tomorrow.
Did you see my finale on your "TMJ or Otosclerosis" post. My 24 year ago "done" ear hasn't changed much...perhaps 10 db worse in the upper registers. Little change in midrange since old surgery.

[This message has been edited by zip2play (edited 06-24-2003).]

CORA · 06-25-2003, 12:36 AM

Hi Zip
I cannot believe that only the three of us have otesclerosis but anyway I would like to see how are your audiograms regarding the auditory nerve function. My audiogram in 94 showed a 10 DB nerve loss on both ears and all frequencies. Is this usual in otosclerosis or is it a lot?
My last audiogram from 2 weeks ago indicated almost no change from the left ear (I am talking about the bone curve always) and some deterioration of 5 to 10 DB in the middle frequencies from the right ear.
I want to know if that means that the oto is spreading to the cochlea or if that is usual. I would like to try the NAF treatment in order to stabilise my condition and then have the surgery.
When you have your audiogram today give me absolute numbers because you say that you have 10DB loss at the high frequencies but you do not say how much it is in absolute numbers.

CORA · 06-25-2003, 05:37 AM

Also another question for Zip and Caz

I have read somewhere that the otosclerosis leads to a maximum degree of hear loss of 50-60DB (conductive).Is it true?

zip2play · 06-25-2003, 05:48 AM

Cora,

With only a 10db loss, I'm amazed your doctor diagnosed otosclerosis....your hearing is quite good.

Or is that bone conduction only....how does that differ(db)from your conduction through your auricles (the normal way?)...in db difference.
With only 10db loss though mastoid, your results after stapedectomy will be SPECTACULAR (and you will need good ear protection)...As soon as my ear canal heals I'm going to have a pair made- the subways are unbearable.

My 1979 results confirming the oto was pretty much a 50db loss in each ear accross the frequency range with perhaps "spike" to a 30-40db loss at 2000hz. These are EAR NUMBERS.
My bone conduction was down 20-30 db (down 20 at 500, 1000, 2000hz).
So basically it was a difference of 30 db between "ear conduction and forehead conduction"

I hope I'm shedding some light.

edit: We were both posting at the same time.
Yes I agree that the 50- 60 db loss is a reasonable upper limit. Of course there are exceptions and anyone with extensive bone intrusion into cochlea, nerve and round window involvement might do somewhat worse than this. That 50-60 is in the ballpark- certainly MY experience. Remember though that coincidental sensoryneural loss can lower the upper frequencies (above 2000hz) considerably more.

[This message has been edited by zip2play (edited 06-25-2003).]