What Is Diabetic Neuropathy?
4. Classification and Staging
Diabetic neuropathy can be divided into various different neuropathies. Classification using the Thomas system combines pathophysiology and anatomy. Another classification system divides neuropathies into symmetrical and asymmetrical neuropathies. In symmetrical neuropathies, the nerves are affected symmetrically.
For example, pain and numbness that begins in the toes and ascends in a stocking-like distribution in a symmetrical pattern. Asymmetrical neuropathies are those such as single limb mononeuropathies, carpal tunnel syndrome, and so on. One of the common staging scales of diabetic neuropathy is: N0 (no neuropathy), N1 (signs are present but there are no symptoms of neuropathy), N2a (symptomatic but mild), N2b (severe symptoms), and N3 (disabling).
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