Hélène Zéphir

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BACKGROUND Neuromyelitis optica (NMO) is often associated with other clinical or serological markers of non-organ-specific autoimmunity. OBJECTIVE To evaluate the relationship between NMO spectrum disorders (NMOSDs), including NMO, longitudinally extensive transverse myelitis, and recurrent optic neuritis, and autoimmune disease. We concentrated on the(More)
BACKGROUND There have been few epidemiologic studies on neuromyelitis optica (NMO) and none used the recent 2006 diagnostic criteria. Here we describe the clinical, laboratory, MRI, and disability course of NMO in a French cohort of 125 patients. METHODS We performed an observational, retrospective, multicenter study. Data were collected from September(More)
OBJECTIVE The purpose of our study was to assess the influence of pregnancy on the course of neuromyelitis optica (NMO) and the impact of epidural analgesia and breastfeeding on its activity in the postpartum period. METHODS We performed a retrospective study of patients with NMO diagnosed according to Wingerchuk criteria. We noted the number of relapses(More)
Sustained-release fampridine (fampridine-SR) improves gait velocity and self-perceived capacities in people with multiple sclerosis (MS). However, little is known about the treatment’s effect on temporospatial gait parameters, walking endurance, general fatigue, hand function and quality of life (QoL). We therefore sought to evaluate these parameters in a(More)
BACKGROUND Acute demyelinating encephalomyelitis (ADEM) is characterized by a severe inflammatory attack, frequently secondary to infectious events or vaccinations. To date, no clear criteria exist for ADEM, and the risk of subsequent evolution to multiple sclerosis (MS) remains unknown. OBJECTIVE To evaluate the risk of evolution to MS after a first(More)
Natalizumab is the first selective adhesion molecule inhibitor indicated for treatment of active relapsing-remitting multiple sclerosis (RRMS). Natalizumab has been available in France since April 2007. The aims of this study are to analyze demographic, clinical, and tolerance data from French patients with RRMS treated with natalizumab in actual clinical(More)
OBJECTIVE To optimize aquaporin-4 (AQP4) antibody (Ab) detection and to assess the influence of the increased sensitivity of the assay on the demographic and disease-related characteristics of a group of AQP4-Ab-negative patients. METHODS Serum samples were obtained from patients included in the French NOMADMUS database with a definite diagnosis of(More)
BACKGROUND To establish whether or not multiple sclerosis (MS) and neuromyelitis optica (NMO) are different pathological entities, we wondered whether MS patients and NMO patients share the same pattern of human leukocyte antigen (HLA) predisposition. OBJECTIVE To study a putative association between susceptibility to NMO and HLA class I or class II loci(More)
OBJECTIVES The aim of this study was to find, using spectral domain-optical coherence tomography (SD-OCT), retinal imaging biomarkers differentiating neuromyelitis optica spectrum disorder (NMOSD), multiple sclerosis (MS) and healthy controls (HCs). MATERIALS AND METHODS The population was composed of patients with NMOSD (n=23) or MS (n=110) and of HCs(More)
IMPORTANCE The safety and efficacy of switching from natalizumab to fingolimod have not yet been evaluated in a large cohort of patients with multiple sclerosis (MS) to our knowledge. OBJECTIVE To collect data from patients with MS switching from natalizumab to fingolimod. DESIGN, SETTING, AND PARTICIPANTS The Enquête Nationale sur l'Introduction du(More)