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  • Title: Childhood CIDP: Study of 31 patients and comparison between slow and rapid-onset groups.
    Author: Cabasson S, Tardieu M, Meunier A, Rouanet-Larriviere MF, Boulay C, Pedespan JM.
    Journal: Brain Dev; 2015 Nov; 37(10):943-51. PubMed ID: 25921353.
    Abstract:
    OBJECTIVES: To describe 31 children presenting a CIDP; to compare patients with rapid-onset disease vs. patients with slow-onset disease, a rapid-onset disease being defined by a time to peak impairment of less than 8 weeks. STUDY DESIGN: A retrospective chart review identified 31 patients completing criteria for childhood CIDP, with 24 "confirmed CIDP" and 7 "possible CIDP". Data collected were time to peak impairment, clinical presentation, cerebrospinal fluid analysis, nerve conduction study, nerve biopsy, treatments. Evaluation at the end of follow-up was reported according to modified Rankin scale. RESULTS: Thirteen patients (42%) exhibited symptoms in less than 2 months with more often cranial nerve abnormalities (38% vs. 6%, p = 0.059), and sensitive symptoms (62% vs. 11%, p = 0.0057). They evolved predominantly in a relapsing way (69% vs. 22%, p = 0.0047). Length of the disease was also longer in the rapid-onset group (5.5 years vs. 3.83 years) but without statistical difference. The slow-onset group exhibited more frequently ataxia at onset (28% vs. 8%, p > 0.05), and evolved predominantly in a progressive manner (61% vs. 15%, p > 0.05). Outcome was similar and good in the two groups. At least 3 out of the 4 major electrophysiological criteria were positive for 27/31 children (87%). Axonal involvement could be present very early. Immunoglobulins were given in 29 cases and corticosteroids in 22. A partial or complete recovery 1 month after first treatment was reported in 30 cases. Among second-line treatments, only azathioprine seemed effective in two out of three intractable children. CONCLUSIONS: The differences noted between the two groups should be tested in wider populations. Electrophysiological criteria are restrictive and axonal involvement should be studied. Prospective trials are required to find out the best first and second line treatments.
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