The Medial Plantar Sensory Response: A Sensitive Marker of Acute Inflammatory Demyelinating Polyneuropathy

Acute Inflammatory Demyelinating Polyneuropathy (AIDP) is an acute neuropathy characterized by ascending motor weakness that is often heralded by sensory symptoms. Diagnosis is confirmed by nerve conduction studies (NCS) that demonstrate the presence of widespread demyelination changes in motor nerves (Hadden et al., 1998). Sensory nerve involvement is early and often follows a typical pattern, the sural sparing pattern (Al-Shekhlee et al., 2007). This pattern is widely accepted as a specific marker of AIDP and is particularly useful when motor changes are not yet apparent (Hiew et al., 2016).

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