What are the common variants of Guillain-Barre syndrome (GBS)?

Updated: Jul 14, 2021
  • Author: Michael T Andary, MD, MS; Chief Editor: Milton J Klein, DO, MBA  more...
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Acute inflammatory demyelinating polyradiculoneuropathy (AIDP) is the most widely recognized form of GBS in Western countries, but the variants known as acute motor axonal neuropathy (AMAN), acute motor-sensory axonal neuropathy (AMSAN), and Miller-Fisher syndrome also are well recognized.

Based on a clinical spectrum of symptoms and findings, it is widely believed that strictly defined subgroups of GBS exist. However, these subgroups are not easily distinguished.

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