title: Lewis-Sumner syndrome in a patient with rheumatoid arthritis: Link between rheumatoid arthritis and demyelinating polyradiculoneuropathies.
abstract: Chronic inflammatory demyelinating polyradiculoneuropathies are a group of autoimmune neuropathies with a chronic course. Lewis-Sumner syndrome is a variant of this disease, characterized by an asymmetrical distal and mostly motor involvement, predominating at upper limb. We report the case of a patient who developed almost currently rheumatoid arthritis and Lewis-Sumner syndrome, which raised the problem of therapeutic intensification for his rheumatism when methotrexate proved to be ineffective. Finally, rituximab had been introduced by common consent with neurologists, and the patient noticed an improvement fifteen days after the first infusion. Even if it is striking that both dysimmune diseases had declared within a few months, the association between chronic inflammatory demyelinating polyradiculoneuropathies and rheumatoid arthritis is exceptional, since the only cases reported in the literature are secondary to TNF-alpha inhibitors. Given the potential demyelinating impact of some biologics, rituximab and perhaps abatacept seem to be the best therapeutic options when DMARDs had proven insufficient to control the rheumatism activity.
authors.affiliation: Service de rhumatologie, hôpital La Pitié-Salpêtrière, 47-83, boulevard de l'Hôpital, 75013 Paris, France. Electronic address: joanna.kedra@aphp.fr.
authors.forename: Joanna
authors.initials: J
authors.lastname: Kedra
authors.affiliation: Service de rhumatologie, hôpital La Pitié-Salpêtrière, 47-83, boulevard de l'Hôpital, 75013 Paris, France.
authors.forename: Violaine
authors.initials: V
authors.lastname: Foltz
authors.affiliation: Département de neurologie, hôpital La Pitié-Salpêtrière, 47-83, boulevard de l'Hôpital, 75013 Paris, France.
authors.forename: Karine
authors.initials: K
authors.lastname: Viala
authors.affiliation: 302, allée des Loges, 91000 Évry, France.
authors.forename: Sivy
authors.initials: S
authors.lastname: Tan
authors.affiliation: Service de rhumatologie, hôpital La Pitié-Salpêtrière, 47-83, boulevard de l'Hôpital, 75013 Paris, France.
authors.forename: Bruno
authors.initials: B
authors.lastname: Fautrel
mesh_terms: D018501:Antirheumatic Agents / Q000627:therapeutic use*; D001172:Arthritis, Rheumatoid / Q000150:complications / Q000188:drug therapy*; D006801:Humans; D016756:Immunoglobulins, Intravenous / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D020277:Polyradiculoneuropathy, Chronic Inflammatory Demyelinating / Q000150:complications / Q000188:drug therapy*; D000069283:Rituximab / Q000627:therapeutic use*; D013577:Syndrome
chemical_list: D018501:Antirheumatic Agents; D016756:Immunoglobulins, Intravenous; D000069283:Rituximab
keywords: Biotherapy; Chronic inflammatory demyelinating polyneuropathies; Lewis–Sumner syndrome; Rheumatoid arthritis