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A NEW question about lidocaine

F. Frank LeFever flefever at ix.netcom.com
Sun Feb 7 21:17:01 EST 1999

Lidocaine and other local anesthetics (incl. cocaine) have a potential
for exacerbating seizure vulnerability, and I believe susceptible
people may have "partial seizure-like" experiences.  We know litle
about the basis of panic attacks, but they can be chemically induced
(viz., the lactic acid probe); and some partial-seizures manifest
themselves as emotional experiences (suggesting focus in some limbic
structure), including panic.  Conceivably, your reported history of
panic attacks may be relevant to a vulnerability to lidocaine side

F. Frank LeFever, Ph.D.
New York Neuropsychology Group

In <79k8dq$dmo$1 at denws02.mw.mediaone.net> "Richard Norman"
<rsnorman at mw.mediaone.net> writes: 
>The carotids and the vagus lie quite deep in the neck and any
>possible reaction would likely have occurred much sooner.
>You say this episode was similar to others you have experienced.
>Could it have been merely coincidental?  or stress induced?
>(assisted by your worrying about possible vagal/caroltid involvement)
>Tim Tillman wrote in message ...
>>Over a year ago I was having several moles (much less than 6.02 X
>>removed for cosmetic reasons over several months.  The max was two at
>>time, as that was all BCBS would cover.  All were under local
>lidocaine with
>>The last two straddled the carotid artery on the right side of my
>neck.  I
>>remember thinking, "I hope the LPN doesn't stab me in the carotid.
>>like all the other times, I was in and out of the dermatologists
>office and
>>home inside of 30 minutes.  But this last time, I began to feel
>>anxious, like a precursor to one of my panic attacks.  I began to
>>extremely strong heart contractions, regular beats, about 100 bpm.  I
>>myself down and these passed within an hour.
>>The question is, could this reaction have been due to placing
>lidocaine so
>>close to the vagus nerve or carotid artery or might it have been due
>to the
>>epinephrine or both.

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