Electrophysiological correlates of cognitive dysfunction in multiple sclerosis

1997 ◽  
Vol 103 (1) ◽  
pp. 53
Author(s):  
G Comi
CNS Spectrums ◽  
2005 ◽  
Vol 10 (5) ◽  
pp. 372-382 ◽  
Author(s):  
Peter A. Arnett

AbstractBackground: Lifetime prevalence rates of cognitive dysfunction and depression in multiple sclerosis (MS) have typically been reported to be ∼50%. However, an inconsistent relationship between these two common features of MS has been reported in the literature. Because neurovegetative depression symptoms overlap with MS symptoms, it may be that literature inconsistencies can partly be explained by the fact that only those depression symptom clusters unambiguously reflective of depression are associated with cognitive dysfunction.Objective: To explore the relationship between different depression symptom clusters and a battery of tests measuring cognitive domains commonly impaired in MS and was examined at two time points 3 years apart.Methods: The Chicago Multiscale Depression Inventory was employed to measure mood, negative evaluative, and neurovegetative symptom clusters in 53 MS patients who were also administered a battery of neuropsychological tests.Results: At time point 1, Mood and Evaluative Chicago Multiscale Depression Inventory scales were significantly associated with tasks of complex speeded attention, planning, and working memory. At time point 2, the Evaluative scale was still significantly associated with these domains, in addition to spatial memory; however, all of the significant correlations with the Mood scale dropped out.Conclusion: These results show that negative evaluative depression symptoms are most consistently predictive of cognitive dysfunction in MS. It may be that negative evaluative depression symptoms use up available cognitive capacity, thus compromising performance on cognitive capacity demanding tasks in MS patients.


2015 ◽  
Vol 73 (2) ◽  
pp. 90-95 ◽  
Author(s):  
Emine Bilgi ◽  
Hasan Hüseyin Özdemir ◽  
Ayhan Bingol ◽  
Serpil Bulut

Objective This study will evaluate how decreasing depression severity via group psychotherapy affects the cognitive function of patients with multiple sclerosis (MS) who are also diagnosed with depression and cognitive dysfunction. Method MS patients completed the Brief Repeatable Battery of Neuropsychological Tests and Beck Depression Inventory (BDI). The group members diagnosed with depression and cognitive dysfunction underwent group psychotherapy for 3 months. Upon completion of psychotherapy, both tests were readministered. Results Depression and cognitive dysfunction were comorbid in 15 (13.9%) of patients. Although improvement was detected at the end of the 3-month group psychotherapy intervention, it was limited to the BDI and the Paced Auditory Test. Conclusion Group psychotherapy might decrease cognitive impairment in MS patients.


2019 ◽  
Vol 47 (5) ◽  
pp. 2187-2198 ◽  
Author(s):  
Thaleia Kalatha ◽  
Marianthi Arnaoutoglou ◽  
Theodoros Koukoulidis ◽  
Eleni Hatzifilippou ◽  
Emmanouil Bouras ◽  
...  

Objective To investigate whether neurofilament light polypeptide (NfL) level in cerebrospinal fluid (CSF), currently a prognostic biomarker of neurodegeneration in patients with multiple sclerosis (MS), may be a potential biomarker of cognitive dysfunction in MS. Methods This observational case–control study included patients with MS. CSF levels of NfL were determined using enzyme-linked immunosorbent assay. Cognitive function was measured with the Brief International Cognitive Assessment for MS (BICAMS) battery and Paced Auditory Serial Addition Test (PASAT3), standardized to the Greek population. Results Of 39 patients enrolled (aged 42.7 ± 13.6 years), 36% were classified as cognitively impaired according to BICAMS z-scores (–0.34 ± 1.13). Relapsing MS was significantly better than progressive forms regarding BICAMS z-score (mean difference [MD] 1.39; 95% confidence interval [CI] 0.54, 2.24), Symbol Digit Modality Test score (MD 1.73; 95% CI 0.46, 3.0) and Greek Verbal Learning Test (MD 1.77; 95% CI 0.82, 2.72). An inversely proportional association between CSF NfL levels and BICAMS z-scores was found in progressive forms of MS (rp = –0.944). Conclusions This study provides preliminary evidence for an association between CSF NfL levels and cognition in progressive forms of MS, which requires validation in larger samples.


2019 ◽  
Vol 11 ◽  
pp. 117957351988404
Author(s):  
Stijn Denissen ◽  
Alexander De Cock ◽  
Tom Meurrens ◽  
Luc Vleugels ◽  
Ann Van Remoortel ◽  
...  

Background: Cognitive dysfunction is a frequent manifestation of multiple sclerosis (MS) but its effect on locomotor rehabilitation is unknown. Objective: To study the impact of cognitive impairment on locomotor rehabilitation outcome in people with MS. Methods: We performed a retrospective analysis involving ambulatory patients with MS who were admitted for intensive, inpatient, multidisciplinary rehabilitation at the National Multiple Sclerosis Center of Melsbroek between the years 2012 and 2017. The Brief Repeatable Battery of Neuropsychological Tests (BRB-N) was used to determine the cognitive status of subjects as either impaired (COG–) or preserved (COG+). Locomotor outcome was compared between groups with the difference in 6-minute walk test (6MWT) measured at admission and discharge (Δ6MWT). In addition, individual test scores of the BRB-N for attention (Paced Auditory Serial Addition Test 2” and 3”), visuospatial learning/memory (7/24 Spatial Recall Test), verbal learning/memory (Selective Reminding Test) and verbal fluency (Controlled Oral Word Association Test) were correlated to the Δ6MWT. Results: A total of 318 complete and unique records were identified. Both groups showed a significant within-group Δ6MWT during hospitalization (COG+: 47.51 m; COG–: 40.97 m; P < .01). In contrast, Δ6MWT values were comparable between groups. The odds of achieving a minimal clinical important difference on the 6MWT did not differ significantly between both groups. Only attention/concentration was significantly correlated with Δ6MWT (r = 0.16, P = .013). Conclusion: Cognitive impairment based on BRB-N results appears not to impede locomotor rehabilitation in ambulatory patients with MS. Attentional deficits are correlated to the extent of locomotor rehabilitation, suggesting the presence of a subtle effect of cognition.


BMC Neurology ◽  
2014 ◽  
Vol 14 (1) ◽  
Author(s):  
Masaaki Niino ◽  
Nobuhiro Mifune ◽  
Tatsuo Kohriyama ◽  
Masahiro Mori ◽  
Takashi Ohashi ◽  
...  

2018 ◽  
Vol 4 (2) ◽  
pp. 205521731876745 ◽  
Author(s):  
Andrew D Smith ◽  
Charles Duffy ◽  
Andrew D Goodman

Background Although cognitive dysfunction is a leading cause of disability and poor quality of life in patients with multiple sclerosis (MS), it is infrequently tested in routine clinical evaluation. Development of a cognitive testing paradigm that captured MS-related cognitive dysfunction and could be obtained in a routine clinical setting may increase surveillance and recognition of cognitive dysfunction. Objectives This was a pilot study to determine if Cognivue could find cognitive performance differences between patients with MS and healthy controls (HC). Methods: A total of 24 patients with MS and 12 HCs between 18 and 50 years old were enrolled. Baseline testing included an Expanded Disability Scale (EDSS), paced auditory serial additions test (PASAT), symbol digit modalities test (SDMT) and Cognivue. Subjects then had repeat testing every 1–2 months for a maximum of three tests. Results Significant differences were found between MS and HC on SDMT, PASAT, and Cognivue Total score. Most Cognivue subtests showed significant differences between MS and HC. Cognivue scores correlated with both SDMT and PASAT and had high test-retest reliability in HCs. Conclusion Cognivue was able to detect multi-domain cognitive dysfunction in MS. Further studies to determine validity of Cognivue in MS with comparison with neuropsychological testing and sensitivity to clinical change are still needed.


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