How long can demyelinating findings persist on nerve conduction studies (NCS) after AIDP illness?

This question was studied in a retrospective review in Muscle and Nerve (Guémy et al., PMID 36814082) in a group of patients with AIDP. At least one feature of demyelination was present in 23% of the cohort (14 out of 61) up to 2 years after the onset of the AIDP-like illness. Using the EFNS-PNS cri...