i am still having many problems with
severe back pain, numbness and pain in
vaginal/rectum areas and inner left thigh
and bladder and bowel probs, have to self
cath ect and still no diagnosis as yet.
Still sitting with a heat pad wedged into
my you know what, really fed up. I got a
copy of a letter that the neurologist sent
to my gp with ref to my emg test but I
haven't seen the neurologist {i need the
results from the full spine mri I am
having tomorrow first} so I don't know
what this means as I haven't spoken to the
doc.
{{''this lady's electrophysiology is quite
clear in that it shows s1 innovated
neurogenic change which is indicative of
lumbar pathology'' }}
what does that mean in english please, and
does it show there is nerve dammage? I
cannot understand why my problems do not
relate to the dermotone maps, s1 probs are
not the same as the ones I have???? Anyone
got any ideas please.
Thank you
|
DoctorAnswer
Doctor Answer
Joined: 19 Dec 2005 Posts: 16777211
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Back Pain Answer A1881 Posted: 12-07-06 10:11am
An electro myo-graphy (EMG) is an
electro-physiological examination that
test the functionality of the nerves.
Nerve functionality is, in fact, actual
conduction of electrical impulses. This
means that EMGs test nerve conductivity.
For example, if a nerve is damaged ,its
conductivity will have decreased and it
will take a longer time for the electrical
impulse to travel throughout the body. If
a nerve is under pressure for a long
period of time, neural degeneration can
occur and its ability to function can
become damaged. At the beginning, nerve
damage manifests with signs of neural
irritation: itching, burning and pain for
the nerves of the sensory neural system
and spasms manifest for motor nerves.
Later, when the nerve degeneration is
complete, symptoms of complete nerve
failure occur: numbness for nerves of the
sensory neural system and pareses and
paralyses for motor nerves. During chronic
degenerative diseases like spondylosis,
various spondylotic changes (disk hernias
and osteophytes) of the vertebral spine
can create pressure on the roots of the
spinal nerves and damage them. An EMG can
only estimate the location of nerve
damage; an MRI will visualize possible
spondylotic changes that create pressure
on the nerve.
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