Author(s): MecaLallana JE, HernndezClares R, LenHernndez A, Genovs Aleixandre A, Cacho Prez M,
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Abstract BACKGROUND: Numerous studies have shown that plasma exchange (PE) is effective as second-line treatment of severe exacerbations of multiple sclerosis (MS) or other idiopathic inflammatory demyelinating diseases of the central nervous system that are nonresponsive to steroid therapy. OBJECTIVE: The goal of this study was to analyze the effect of PE on clinically active radiologic lesions in steroid-refractory relapses of MS and idiopathic inflammatory demyelinating diseases of the central nervous system. METHODS: This was a prospective, observational pilot study in which the primary end point was the degree of radiologic resolution of active lesions after PE. RESULTS: A total of 15 patients were included (median age, 36.9 years [age range, 21-67 years]; 60\% women). Five (33.3\%) of the 15 patients had relapsing-remitting MS, 2 (13.3\%) had clinically isolated syndrome that presented with transverse myelitis, 2 (13.3\%) had recurrent myelitis, 1 (6.7\%) had transverse myelitis, 1 (6.7\%) had longitudinally extensive transverse myelitis, 1 (6.7\%) had acute disseminated encephalomyelitis, 1 (6.7\%) had Baló's concentric sclerosis, and 2 (13.3\%) had neuromyelitis optica. Mean increase on the expanded disability status scale scores due to relapses was 4.8 (2.53). After PE, 93.3\% showed a marked to moderate clinical improvement, and 46.7\% recovered their baseline expanded disability status scale score 3 months post-PE. On the post-PE MRI, 60\% showed radiologic resolution (80\% mass-effect lesions, 83.3\% new-onset disease, and 100\% neuromyelitis optica), 20\% had partial resolution, and 20\% no resolution. A significant relationship was not obtained between degree of resolution of radiologic lesions and the variables: clinical response to PE, new-onset disease, mass-effect lesions, number of PE sessions, and early initiation of PE. CONCLUSION: A marked to moderate clinical improvement post-PE accompanied by a lack of radiologic resolution of the active lesion is not indicative of poor prognosis. Copyright © 2013 Elsevier HS Journals, Inc. All rights reserved.
This article was published in Clin Ther
and referenced in Journal of Multiple Sclerosis