I am not sure why the median SNAP is normal in TOS, but the medial CMAP is abnormal.
Both signify a neurogenic process (early reinnervation). What is the best way to differentiate the two on EMG? Also, I read that a satellite potential is "time locked" which does not make sense to me since these are unstable potentials ...
My understanding is that there is a decrease in amplitude AND area in conduction block, but why is there not supposed to be an increase in duration as well?
I have read that both are seen very early in axonal loss, but there have been conflicting statements as to which one is a more sensitive indicator for axonal loss.
