Monday, November 1, 2010

Jonica - Audiology 2 with complete Bone Conduction results

Thurs 21st October - today we revisited Mater Audiology to attempt to complete Jonica's hearing profile; while we got lots of testing done at the last appt, we didn't get a full set of results so today the plan was to fill in the gaps. Unfortunately, in the few days leading up to today, Jonica has developed a very snuffly nose and initial readings indicate that her middle ears are not completely clear, which affects her hearing.

Our audiologist began by repeating some of last time's tests, just to confirm that things hadn't changed - always a good thing to do considering Jarrah's history! These results were mildly worse than last time so we decided to check her tympanometry (movement of the eardrum) which would give us an idea of the state of her middle ears. One side had eardrum movement but negative pressure, indicating a blocked Eustachian tube (drains the middle ear down the back of the throat), and the other side had no eardrum movement. Great. No real point continuing with air conduction testing, then...

We decided we could fill in the Bone Conduction results, since bone conduction bypasses the middle ear. Again, we checked last time's results first and they matched, so that was also good news! More good news is that technology has improved since we were here with Kaelen and they are now able to do bone conduction testing at different frequencies, previously unavailable - here are Jonica's bone conduction results:

(All have a margin of error of +/-10dB)
Bone conduction Right:
500Hz = 40dB
1kHz = 30dB
2kHz = 50dB or worse
4kHz = 50dB or worse
Bone conduction Left:
500Hz = 40dB
1kHz = 30dB
2kHz = 50dB or worse
4kHz = 50dB or worse
Tympanometry: showed middle ear dysfunction on both sides today
TEOAE: emissions absent (see entry from Kaelen's confirmation hearing test 2008 for explanation)

So, some good news here - Jonica's hearing loss appears to be mild in the low frequencies, sloping down to moderate or worse in the high frequencies. Bone conduction only tests up to 50dB, hence the "or worse" clause - her true functioning levels will be indicated when we can finish the air conduction tests after her little ears clear. But, we can say "mild"! This is cause for celebration in our house, as both Jarrah & Kaelen's losses begin at "moderate" and get worse, so for Jonica's to begin at mild is great, it means she can actually hear quite a bit of what's going on in our house, quite a lot of what i say to her at close range, it means we are definitely out of implant territory, and that in general her hearing loss is not as severe as her brothers'.

*Sigh*, it's nice to get some good news! Another test will be scheduled in 2-4weeks' time to complete the air conduction results, and we hope by then her middle ears have cleared completely.

Next appt: Friday 29th October, Jonica's initial Australian Hearing consultation

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