What is the role of NCS in the workup of spinal muscular atrophy (SMA)?

Updated: Jan 03, 2017
  • Author: ; Chief Editor: Stephen L Nelson, Jr, MD, PhD, FAACPDM, FAAN, FAAP  more...
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Answer

Electrophysiologic studies are useful in differentiating the spinal muscular atrophies from other neurogenic and myopathic diseases. [41, 42] With the exception of Kennedy and Davidenkow syndromes, sensory nerve conduction is normal in spinal muscular atrophy.


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