• J Clin Sleep Med · Sep 2013

    Restless leg syndrome in different types of demyelinating neuropathies: a single-center pilot study.

    • Marco Luigetti, Alessandra Del Grande, Elisa Testani, Giulia Bisogni, Anna Losurdo, Nadia Mariagrazia Giannantoni, Salvatore Mazza, Mario Sabatelli, and Giacomo Della Marca.
    • Institute of Neurology, Catholic University of Sacred Heart, Rome, Italy. mluigetti@gmail.com
    • J Clin Sleep Med. 2013 Sep 1;9(9):945-9.

    Objectiveto determine the prevalence of restless legs syndrome (RLS) in a cohort of patients with demyelinating neuropathies.MethodsPatients were retrospectively recruited from our cohort of different forms of demyelinating neuropathies, including chronic inflammatory demyelinating neuropathy (CIDP), Charcot-Marie-Tooth 1A (CMT1A), and hereditary neuropathy with liability to pressure palsies (HNPP) referred to our Department of Neurology in a 10-year period. The validated 4-item RLS questionnaire was used for diagnosis of RLS. All patients with RLS who fulfilled criteria underwent a suggested immobilization test to confirm the diagnosis. A group of outpatients referred to the sleep disorders unit and data from published literature were used as controls.ResultsPrevalence of RLS in demyelinating neuropathy group was higher than prevalence observed in control population (p = 0.0142) or in the literature data (p = 0.0007). In particular, in comparison with both control population and literature data, prevalence of RLS was higher in CIDP group (p = 0.0266 and p = 0.0063, respectively) and in CMT1A group (p = 0.0312 and p = 0.0105, respectively), but not in HNPP (p = 1.000 and p = 0.9320, respectively).Conclusionsour study confirms a high prevalence of RLS in inflammatory neuropathies as CIDP and, among inherited neuropathies, in CMT1A but not in HNPP. Considering that this is only a small cohort from a single-center retrospective experience, the link between RLS and neuropathy remains uncertain, and larger multicenter studies are probably needed to clarify the real meaning of the association between RLS and neuropathy.

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