Brain Atrophy in Natalizumab-treated Patients with Multiple Sclerosis: A 5-year Retrospective Study.
MRI
brain atrophy
multiple sclerosis
natalizumab
Journal
Journal of neuroimaging : official journal of the American Society of Neuroimaging
ISSN: 1552-6569
Titre abrégé: J Neuroimaging
Pays: United States
ID NLM: 9102705
Informations de publication
Date de publication:
Mar 2019
Mar 2019
Historique:
received:
31
08
2018
revised:
16
11
2018
accepted:
17
11
2018
pubmed:
30
11
2018
medline:
7
3
2020
entrez:
29
11
2018
Statut:
ppublish
Résumé
Studies demonstrated a higher brain volume loss in the first year after initiation of natalizumab treatment than in the second year, but the experiences beyond 24 months are scarce until now. We investigated the evolution of brain volume changes in multiple sclerosis (MS) patients receiving natalizumab for at least 60 months. Using annual 3-dimensional magnetization-prepared rapid acquisition gradient-echo (MPRAGE) sequences acquired on a 3 Tesla magnetic resonance imaging (MRI), we investigated percentage brain volume changes (PBVCs) in 10 MS patients (9 women, mean age at baseline MRI = 29 ± 9 years; median Expanded Disability Status Scale = 2 ± 1.5; mean disease duration = 6 ± 5 years) after 12, 24, 36, 48, and 60 months. PBVCs were statistically higher during the first 12 months (-1.48 ± 1.05%) when compared to 12-24 months (-.6 ± .61%; P < .05), but not between 12-24 and 24-36 months (-.43 ± .54%), 24-36 and 36-48 months (-.28 ± .49%), and 36-48 and 48-60 months (-.33 ± .49%; P > .05 for all comparisons). Our results contribute to the increasing knowledge of PBVCs in natalizumab-treated MS patients. Our data suggests that after a significant PBVC decrease in the first year, brain atrophy rates show a slowdown during long-term follow-up.
Sections du résumé
BACKGROUND AND PURPOSE
OBJECTIVE
Studies demonstrated a higher brain volume loss in the first year after initiation of natalizumab treatment than in the second year, but the experiences beyond 24 months are scarce until now. We investigated the evolution of brain volume changes in multiple sclerosis (MS) patients receiving natalizumab for at least 60 months.
METHODS
METHODS
Using annual 3-dimensional magnetization-prepared rapid acquisition gradient-echo (MPRAGE) sequences acquired on a 3 Tesla magnetic resonance imaging (MRI), we investigated percentage brain volume changes (PBVCs) in 10 MS patients (9 women, mean age at baseline MRI = 29 ± 9 years; median Expanded Disability Status Scale = 2 ± 1.5; mean disease duration = 6 ± 5 years) after 12, 24, 36, 48, and 60 months.
RESULTS
RESULTS
PBVCs were statistically higher during the first 12 months (-1.48 ± 1.05%) when compared to 12-24 months (-.6 ± .61%; P < .05), but not between 12-24 and 24-36 months (-.43 ± .54%), 24-36 and 36-48 months (-.28 ± .49%), and 36-48 and 48-60 months (-.33 ± .49%; P > .05 for all comparisons).
CONCLUSION
CONCLUSIONS
Our results contribute to the increasing knowledge of PBVCs in natalizumab-treated MS patients. Our data suggests that after a significant PBVC decrease in the first year, brain atrophy rates show a slowdown during long-term follow-up.
Substances chimiques
Immunologic Factors
0
Natalizumab
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
190-192Subventions
Organisme : Bayer Schering
Organisme : Biogen Idec
Organisme : Merck Serono
Organisme : Novartis
Organisme : TEVA Neurosciences
Informations de copyright
© 2018 by the American Society of Neuroimaging.