Poser Criteria (poser + criterion)

Distribution by Scientific Domains

Selected Abstracts

Epstein,Barr virus reactivation and multiple sclerosis

ō. Torkildsen
Infection with Epstein,Barr virus (EBV) is considered one of the possible key environmental factors in the aetiology of multiple sclerosis (MS). Whether EBV plays an underlying role as an activator of MS remains, however, controversial. Sixty-one patients with definite relapsing,remitting multiple sclerosis (RRMS) according to the Poser criteria were followed for 1 year. Blood samples were drawn at baseline, months 3, 6 and 12, and in case of any clinical exacerbation. Twenty-three baseline,paired exacerbation samples in the same set were quantitatively analysed to examine whether exacerbations in MS were associated with a change in anti-diffuse component of the EBV-early antigen (EA-D) IgG ratio. All the 61 patients (100%) were anti-viral capsid antigen (VCA) IgG positive, one (2%) was anti-VCA IgM positive and 60 (98%) were anti-EBV nuclear antigen IgG positive. Mean anti-EA-D IgG at baseline was 0.57 (range 0.12,2.70) and at the time of exacerbations 0.61 (range 0.11,2.70). Wilcoxon signed rank test revealed no differences between the 23 baseline and paired exacerbation samples (P = 0.58). Our findings suggest that reactivation of latent EBV infection does not play a significant role for exacerbations in RRMS. [source]

Evaluation of multiple sclerosis diagnostic criteria in Suzhou, China , risk of under-diagnosis in a low prevalence area

X.-J. Cheng
Objective,,, To evaluate the discharge diagnosis of demyelinating diseases in the central nervous system (CNS) and analyze the predictive value of the new diagnostic criteria in Suzhou, China. Materials and methods,,, We collected clinical information and data of laboratory examinations for all cases with a diagnosis of various demyelinating diseases in the CNS. All data were reviewed individually by four senior neurologists, and a diagnosis was finally given to each patient according to the McDonald criteria and the Poser criteria for multiple sclerosis (MS). Results,,, In the analysis, 176 patients with a diagnosis of demyelinating diseases in the CNS at discharge were included. In 82 patients with a diagnosis of MS at discharge, the MS diagnosis was confirmed for 74 patients according to the McDonald criteria for MS, and the positive predictive value for the discharge diagnosis of MS was 90.2% (74/82). According to the Poser criteria, 61 patients were diagnosed as MS. The consistency of the two diagnostic criteria for MS was 78.4%, based on the results of the evaluation. Conclusions,,, Under-diagnosis of MS could be one of the explanations for the low prevalence of MS in China. Compared to the Poser criteria, the McDonald criteria had a higher sensitivity for the diagnosis of MS. [source]

Gender change and its impact on the course of multiple sclerosis

D. Reske
We report the case of a 22-years old genotypic women suffering from a relapsing-remitting multiple sclerosis (MS) according to the Poser criteria. In this patient, a gender change had been performed by androgen-supplementation and surgical intervention. During gender change, the patient experienced further relapses. Different immunomodulatory and immunosuppressive treatment strategies did not stabilise the course of MS in this patient. Actually, an escalating therapy with mitoxantrone has been initiated. During the observation period the patient received long-term testosterone-supplementation. Testosterone levels were elevated in the serum of this genotypic female MS patient under such a hormonal treatment compared to normal ranges before. The clinical course of the patient is presented in this case. As there are several studies investigating an immunomodulatory impact of hormones on the course of MS or experimental allergic encephalomyelitis, we discuss the presented case and a possible influence of androgens in this patient. [source]

Increasing prevalence of multiple sclerosis in Finland

M-L. Sumelahti
Objectives , To follow-up the prevalence trends of MS from 1983 to 1993 in western and southern Finland. MS epidemiology has been previously followed from 1964 to 1978 in these regions. The updated prevalences were correlated with incidence trends in the same period. Methods, Age-adjusted and age-specific MS prevalence rates were calculated for cases classified by Poser's criteria. Results, In the western health-care districts, Seinšjoki and Vaasa, prevalences in 1993 were 202/105 and 111/105. In the southern district Uusimaa the respective figure was 108/105. In Seinšjoki a significant 1.7-fold increase was found in 1993 as compared to 1983, mainly due to increased incidence. In Uusimaa a significant 1.2-fold increase in prevalence was found in the presence of stable incidence. In Vaasa prevalence was stable, although incidence was declining. Conclusion, The prevalence of MS is increasing in Seinšjoki and Uusimaa but not in Vaasa. Both the prevalence and incidence in Seinšjoki are now among the highest reported. [source]