Conversion from clinically isolated syndrome to multiple sclerosis: A large multicantre study

  • J. Kuhle
  • , G. Disanto
  • , R. Dobson
  • , R. Adiutori
  • , L. Bianchi
  • , J. Topping
  • , J. P. Bestwick
  • , U. C. Meier
  • , M. Marta
  • , G. Dalla Costa
  • , T. Runia
  • , E. Evdoshenko
  • , N. Lazareva
  • , E. Thouvenot
  • , P. Iaffaldano
  • , V. Direnzo
  • , M. Khademi
  • , F. Piehl
  • , M. Comabella
  • , M. Sombekke
  • J. Killestein, H. Hegen, S. Rauch, S. Dalfonso, J. C. Alvarez-Cermeño, P. Kleinová, D. Horáková, R. Roesler, F. Lauda, S. Llufriu, T. Avsar, U. Uygunoglu, A. Altintas, S. Saip, T. Menge, C. Rajda, R. Bergamaschi, N. Moll, M. Khalil, R. Marignier, I. Dujmovic, H. Larsson, C. Malmestrom, E. Scarpini, C. Fenoglio, S. Wergeland, A. Laroni, V. Annibali, S. Romano, A. D. Martínez, A. Carra, M. Salvetti, A. Uccelli, Torkildsen, K. M. Myhr, D. Galimberti, K. Rejdak, J. Lycke, J. L. Frederiksen, J. Drulovic, C. Confavreux, D. Brassat, C. Enzinger, S. Fuchs, I. Bosca, J. Pelletier, C. Picard, E. Colombo, D. Franciotta, T. Derfuss, R. L.P. Lindberg, Yaldizli, L. Vécsei, B. C. Kieseier, H. P. Hartung, P. Villoslada, A. Siva, A. Saiz, H. Tumani, E. Havrdová, L. M. Villar, M. Leone, N. Barizzone, F. Deisenhammer, C. Teunissen, X. Montalban, M. Tintoré, T. Olsson, M. Trojano, S. Lehmann, G. Castelnovo, S. Lapin, R. Hintzen, L. Kappos, R. Furlan, V. Martinelli, G. Comi, S. V. Ramagopalan, G. Giovannoni

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

Background and objective: We explored which clinical and biochemical variables predict conversion from clinically isolated syndrome (CIS) to clinically definite multiple sclerosis (CDMS) in a large international cohort. Methods: Thirty-three centres provided serum samples from 1047 CIS cases with at least two years' follow-up. Age, sex, clinical presentation, T2-hyperintense lesions, cerebrospinal fluid (CSF) oligoclonal bands (OCBs), CSF IgG index, CSF cell count, serum 25-hydroxyvitamin D3 (25-OH-D), cotinine and IgG titres against Epstein-Barr nuclear antigen 1 (EBNA-1) and cytomegalovirus were tested for association with risk of CDMS. Results: At median follow-up of 4.31 years, 623 CIS cases converted to CDMS. Predictors of conversion in multivariable analyses were OCB (HR = 2.18, 95% CI = 1.71-2.77, p < 0.001), number of T2 lesions (two to nine lesions vs 0/1 lesions: HR = 1.97, 95% CI = 1.52-2.55, p < 0.001; >9 lesions vs 0/1 lesions: HR = 2.74, 95% CI = 2.04-3.68, p < 0.001) and age at CIS (HR per year inversely increase = 0.98, 95% CI = 0.98-0.99, p < 0.001). Lower 25-OH-D levels were associated with CDMS in univariable analysis, but this was attenuated in the multivariable model. OCB positivity was associated with higher EBNA-1 IgG titres. Conclusions: We validated MRI lesion load, OCB and age at CIS as the strongest independent predictors of conversion to CDMS in this multicentre setting. A role for vitamin D is suggested but requires further investigation.

Lingua originaleInglese
pagine (da-a)1013-1024
Numero di pagine12
RivistaMultiple Sclerosis Journal
Volume21
Numero di pubblicazione8
DOI
Stato di pubblicazionePubblicato - 11 lug 2015

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