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Biomedical subjects

E Michelin

Publications and source records attributed to E Michelin.

5 recordsLinked to original sources
PubMed2007

Combination of IFN beta-1a (Avonex) and mycophenolate mofetil (Cellcept) in multiple sclerosis.

To determine the safety of a combination of mycophenolate mofetil (Cellcept, MMF) and IFNbeta-1a (Avonex) in relapsing-remitting multiple sclerosis (RRMS) and to evaluate the effects of the combination on clinical and magnetic resonance imaging (MRI) measures of disease activity. Secondary objectives were clinical and MRI data. An open-label, single-centre study including 30 RRMS patients was performed. Inclusion criteria were patients expanded disability status scale (EDSS) score <6.0, treated by Avonex for at least 6 months, with at least two relapses during the previous 2 years and at least one during the previous 6 months. MMF at a progressive dose of 2 g per day orally was added to Avonex for a duration of 6 months. MRI data were obtained at baseline and at the end of the study. The pre-study annual relapse rate was 2.0 +/- 0.7 and the EDSS score at baseline was 2.9 +/- 1.3. Eleven patients had gadolinium (Gd)-enhanced lesions at baseline for a total number of 35 lesions. Two patients interrupted the combination, one after the first dose for personal reasons unrelated to the study and the other due to diarrhoea. A few of the patients also reported nausea and abdominal pains. Adverse events included benign infectious diseases, insomnia and dizziness. No significant biological abnormalities were noted. The annualized relapse rate was 0.57 +/- 0.3 at the end of the study (P < 0.001). The mean EDSS score was 2.6 +/- 1.5 and no Gd-enhanced lesions were detected on MRI at the end of the study. MMF and IFNbeta-1a (Avonex) combined therapy is safe and very well-tolerated. Clinical and MRI data suggest that this combination may be beneficial.

Adult↗
PubMed2005

Brain MRI in late-onset multiple sclerosis.

Multiple sclerosis (MS) with clinical onset after 50 years of age is unusual (between 1 and 6%) and is frequently misdiagnosed. Furthermore, brain magnetic resonance imaging (MRI) abnormalities are frequently observed in subjects over 50 years of age. The aim of this study was to describe brain MRI in late-onset MS to evaluate the sensitivity and specificity of radiological MS criteria in patients aged over 50 years. We evaluated the brain MRI of 20 patients with onset of MS after 50 years of age. We compared these MRI with 26 controls matched for age, sex and vascular risk factors. MRI were blindly analysed by two neuroradiologists according to Paty et al.'s [Neurology38 (1988) 180] criteria, Fazekas et al.'s [Neurology38 (1988) 1822] criteria and Barkhof et al.'s [Brain120 (1997) 2059] criteria. The mean age at MRI scanning was 58 years. Sensitivity was 90% for Paty et al.'s criteria, 80% for Fazekas et al.'s criteria and 85% for Barkhof et al.'s criteria. Specificity was 54% for Paty et al.'s criteria, 69% for Fazekas et al.'s criteria and 65% for Barkhof et al.'s criteria. Barkhof et al.'s criteria are less specific in older patients than in young patients. We suggest that spinal cord MRI and cerebrospinal fluid analysis should be systematically performed in suspected late-onset MS in order to increase the specificity of the diagnosis.

Aged↗
PubMed2004

[Infectious myelopathies: clinical, serological, and prognostic patterns].

INTRODUCTION: Serological confirmation of an infectious acute myelitis injury is difficult to confirm as it is sometimes due to a post-infectious etiology. OBJECTIVES: The aim of this study was to define the clinical, biological and prognostic patterns of infectious myelitis. PATIENTS AND METHODS: This retrospective study included 153 subjects hospitalized in the department of neurology between 1993 and 2002 for treatment of a noncompressive acute myelopathy. Biological confirmation of recent infection was obtained in 12 patients (8 p. 100). RESULTS: An infectious syndrome, beginning prior to the neurological symptoms, was found in 67 percent of patients. The clinical symptoms were severe with loss of sensoromotor and sphincter functions and ascending spinal cord dysfunction (acute transverse myelopathy). Spinal cord MRI showed extended centromedullar high intensity signals with rapid and complete regression. CSF analysis cell count was above 30/mm3 with hyperproteinorachia, in 75 percent and 58 percent of patients respectively. CSF electrophoresis did not detect oligoclonal bands. Clinical outcome was good in all patients except one, however sphincter disorders recovered slowly. DISCUSSION: Our study illustrates a stereotypical clinical, biological and prognostic pattern for infectious acute myelitis. These findings contribute significantly to therapeutic decision making and establishing prognosis at the initial phase of acute myelopathy.

Adolescent↗
PubMed2003

Prospective study of patients presenting with acute partial transverse myelopathy.

BACKGROUND: The clinical and radiological characteristics of myelopathy in multiple sclerosis (MS) are relatively well known. Nevertheless, it remains difficult for the clinician to ascertain conversion to MS after a first episode of acute partial transverse myelopathy (APTM). OBJECTIVE: The aims of this study were to define predictive factors for conversion to clinically definite MS after an APTM and to define predictive factors for disease severity. PATIENTS AND METHODS: Between 1994 and 2001, we prospectively included 55 patients presenting with a first episode of APTM. Three patients were lost during the follow-up. We evaluated clinical signs, spinal cord and brain MRI, cerebrospinal fluid (CSF) and visual evoked potentials on admission. After a mean followup of 35 months (range 12-86), we evaluated the diagnosis and, among the MS group, the severity of the disease. RESULTS: Of the 52 APTM patients who completed the study, 30 became clinically definite MS. The predictive factors for conversion to MS were: initial sensory symptoms, latero-posterior spinal cord lesion, abnormal brain MRI and oligoclonal bands in CSF. In the MS group, the number of spinal cord lesions on MRI was the only predictive factor for a poor outcome, being statistically correlated with a higher number of relapses. CONCLUSION: On the basis of our results, we propose that, in patients with APTM, sensory symptoms, oligoclonal bands and brain MRI are predictive factors for subsequent conversion to clinically definite MS and that within the latter patients the number of spinal cord lesions on MRI is the only predictive factor for a poor outcome.

Acute Disease↗