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Inner Ear Disorders Message Board


Inner Ear Disorders Board Index


Hi Aslyme,

Exactly, once damage has occured then the cause is irrelevant - the process of recovery is the same (ie compensation)...

The "classic" pattern of VN is an intense attack of vertigo (when the damage occurs) followed by gradual improvement over days, months, and sometimes years. However, a lot of people don't come under the classic category so it may slowly come on (possibly as the nerve becomes inflammed) over a number of days. Once the initial cause has left (usually within a few days) then the person is left with an "uncompensated vestibular deficit", in the long term the brain slowly adjusts to the deficit (compensation) during that period some people report constant balance problems, others report visual problems, others report motion/visually provoked symptoms but the majority report a combination of all these to some extent. But to answer your question, with VN you would expect constant symptoms (though they do often wax and wane), which resolve overtime,

As for caloric/engs, they do not rule VN. In the classic scenario VN would produced obvious unilateral caloric weakness, however, as

A) calorics only test at certain frequencies (ie we don't know if the dysfunction would become apparent at others)
B) Testing is very inaccurate, yet minor dysfunction could cause severe symtpoms
C) The readings only compare on side with the other, there may have already been a natural weakness in one side
D) They only test part of system (2 of the three canals - so the other one can be where the bad signals come from)

Then normal calorics/engs don't tell us much.
[QUOTE=BennyGibb]Hi Aslyme,

The "classic" pattern of VN is an intense attack of vertigo (when the damage occurs) followed by gradual improvement over days, months, and sometimes years. However, a lot of people don't come under the classic category so it may slowly come on (possibly as the nerve becomes inflammed) over a number of days. Once the initial cause has left (usually within a few days) then the person is left with an "uncompensated vestibular deficit", in the long term the brain slowly adjusts to the deficit (compensation) during that period some people report constant balance problems, others report visual problems, others report motion/visually provoked symptoms but the majority report a combination of all these to some extent. But to answer your question, with VN you would expect constant symptoms (though they do often wax and wane), which resolve overtime,

As for caloric/engs, they do not rule VN. In the classic scenario VN would produced obvious unilateral caloric weakness, however, as

A) calorics only test at certain frequencies (ie we don't know if the dysfunction would become apparent at others)
B) Testing is very inaccurate, yet minor dysfunction could cause severe symtpoms
C) The readings only compare on side with the other, there may have already been a natural weakness in one side
D) They only test part of system (2 of the three canals - so the other one can be where the bad signals come from)

Then normal calorics/engs don't tell us much.[/QUOTE]

Very good description of this BennyGibb! Unfortunatelty, the Neurotologist I saw dismissed my repeated "attacks" as recurrent VN. He did say that he has seen other patients with multiple episodes like me. Everything I'm reading on the net says that repeated episodes of VN are very, very rare. Hmmm...so it makes me wonder. The "attacks" I've had in the past generally came on over a day or so and the spinning vertigo was no more than two days. After that passed I had imbalance and disequilibrium for no more than 5-7 days after which I felt normal. I had a minor episode on 11/26 and I'm still feeling the effects now but I think it's BPPV. My GP did the Hallpike test and I got vertigo. I have an appt. next week with a local ENT and I'm going to ask him to to the Epley maneuver. Anyway, this is all so very strange.





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