On 1998-06-29 [log in to unmask] said:
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>uk
>In a message dated 29/06/1998 Susan J. Herdman
><[log in to unmask]> wrote:
Have there been any changes in electrophysiological measurements, or any
positive response to cinnarizine or prochlorperazine? Could it be an
idiosyncratic sensitivity of the stato-acoustic system?
Regards,
Mike Cassidy,
James Paget Healthcare NHS Trust,
Norfolk, UK
>> You raise an interesting question re circulatory problems and
>> dizziness. BPPV is only diagnosed by the presence of
>>nystagmus concurrent with the brief periods of vertigo (a
>>true spinning sensation). Presumably the physicians who
>>diagnosed you actually saw the nystagmus; otherwise the
>>diagnosis may have been incorrect. Vascular "events"
>>involving the brainstem may also result in (central)
>>positional nystagmus which can be confused with BPPV. A cardiac
>event would not result in nystagmus.
>***A most relevant and helpful analysis - during the earliest
>stages of my disorder, there indeed was pronounced nystagmus,
>though that has disappeared completely. The vertigo, however, still
>occurs episodically. However, though a cardiac event does not
>result in nystagmus, is it possible that subtle cardiovascular
>events could also be simultaneously implicated in the onset of
>dizziness, so that the true BPPV would be masking the existence of
>another concurrent pathology?
>Dr Mel C Siff
>Littleton, Colorado, USA
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