Clinically relevant cranio-caudal patterns of cervical cord atrophy evolution in MS
2019
Objective To characterize the distribution and regional evolution of cervical cord
atrophyin patients with
multiple sclerosis(MS) in a multicenter dataset. Methods MRI and clinical evaluations were acquired from 179 controls and 435 patients (35 clinically isolated syndromes [CIS], 259 relapsing-remitting
multiple sclerosis[RRMS], 99 secondary progressive
multiple sclerosis[SPMS], and 42 primary progressive
multiple sclerosis[PPMS]). Sixty-nine controls and 178 patients underwent a 1-year MRI and clinical follow-up. Patients were classified as clinically stable/worsened according to their disability change. Longitudinal changes of cord
atrophywere investigated with linear mixed-effect models. Sample size calculations were performed using age-, sex- and site-adjusted annualized percentage normalized cord cross-sectional area (CSAn) changes. Results Baseline CSAn was lower in patients with MS vs controls (p 5 years) showed significant cord
atrophyvs patients with early RRMS (p = 0.02). Patients with progressive MS had decreased CSAn (p Conclusions Cord
atrophyincreased in MS during 1 year, except for CIS. Faster
atrophycontributed to explain clinical worsening.
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