Search Results (65)

Background: Cognitive changes after minor surgery may affect patient safety, functional recovery, and readiness for hospital discharge, even after low-risk procedures with early discharge protocols. In this regard, patients require neuropsychological assessment at discharge, which may have important clinical implications for return to daily activities and postoperative decision-making. Our study investigated postoperative cognitive changes after minor surgery under general anesthesia using a neuropsychological assessment and a non-surgical group. Methods: Patients undergoing laparoscopic cholecystectomy received propofol or sevoflurane anesthesia. A non-surgical control group was included. Cognitive performance was assessed at baseline and discharge using the Computerized Visual Attention Test (CVAT), the controlled oral word association test (COWAT), and the symbol digit modalities test (SDMT). Relative change scores were calculated as ((baseline − postoperative performance)/baseline). Group differences were analyzed using two-tailed multivariate analysis of variance (MANOVA), followed by ANOVAs and Bonferroni-adjusted pairwise comparisons. Results: A total of 105 participants were included (37 non-surgical, 34 propofol, 34 sevoflurane). MANOVA showed a significant group effect (Pillai’s trace = 0.332, p < 0.001, η² = 0.196). The ANOVAs revealed significant differences in sustained attention (CVAT), verbal fluency (COWAT) and executive function (SDMT). The propofol group showed evident decline in sustained attention compared to non-surgical. In verbal fluency, non-surgical improved at day after, whereas both surgical groups showed no improvement, indicating worse performance. In SDMT the sevoflurane group had worse performance. Conclusions: Minor surgery under general anesthesia may lead to transient impairments in attention and learning at discharge, supporting the need for postoperative cognitive monitoring and individualized discharge decisions. Full article

Background and Objectives: Multiple sclerosis (MS) is characterized by progressive disability and a spectrum of motor and cognitive impairments. Exergames and virtual reality (VR) are proposed as motivating exercise tools, potentially useful for improving adherence and expanding access to rehabilitation. The objectives are to explore the feasibility and safety of a supervised rehabilitation program based on a high-intensity exercise program with immersive virtual reality (IVR) in people with MS and to describe its effects on physical, cognitive, and functional domains, as well as on the serum biomarker neurofilament light chain (sNfL). Materials and Methods: Pre–post exploratory study in five volunteers from a local MS Association [Vigo, Spain]. Intervention: 8 weeks, two sessions/week, 10 min/session of an IVR boxing-based exergame combined with usual rehabilitation, supervised by a physiotherapist. The variables studied were safety (Simulator Sickness Questionnaire [SSQ]), usability (System Usability Scale [SUS]), disability (Expanded Disability Status Scale [EDSS]), gait (25-Foot Walk Test [25FWT]), manual dexterity (9 Hole Peg Test [9HPT]), cognition (Symbol Digit Modalities Test [SDMT]), and axonal damage biomarker (sNfL). Results: The intervention could be feasible and safe (100% adherence, no adverse events (without SSQ symptoms), 95% usability [SUS]). There were positive changes in all variables studied (mean ± SD): EDSS −0.5 ± 0.9; 25FWT −4.9 ± 9.8 s; right 9HPT −3.3 ± 0.9 s; sNfL −4.4 ± 4.5 pg/mL, except for left 9HPT +0.5 ± 5.0 s and cognition (SDMT −2.4 ± 1.3 points). Conclusions: A brief, supervised exercise program combing an IVR exergame with standard rehabilitation was feasible and safe in people with MS. Although the results seem promising with the proposed design, the clinical and biological changes are merely exploratory, and it is not possible to infer their efficacy. Our findings open the door to future controlled studies including perceived high-intensity exercise programs and larger sample sizes to explore efficacy and estimate clinically relevant effect sizes. Full article

Background/Objectives: Multiple sclerosis (MS) commonly impairs information processing speed, which is not well captured by conventional disability metrics. Oculomotor paradigms engage neural circuits frequently affected in MS and may provide objective cognitive correlates. We investigated whether baseline oculomotor parameters are prospectively associated with processing speed at ~6-year follow-up. Methods: Forty-four patients with MS underwent a standardized oculomotor battery (visually guided saccades, antisaccades, and sinusoidal smooth pursuit). The Symbol Digit Modalities Test (SDMT) was reassessed after a mean of 5.7 years. Age-adjusted Spearman partial correlations were computed between 30 baseline oculomotor parameters and follow-up SDMT, applying false discovery rate (FDR) correction. Sensitivity analyses included Cook’s distance. Results: Three parameters survived FDR correction: reflexive saccade duration (i.e., erroneous fixation duration—the dwell time at the erroneous target location before corrective antisaccade initiation; ρ = −0.59, q = 0.0011), catch-up saccades (ρ = −0.52, q = 0.0055), and reflexive saccade latency (ρ = −0.44, q = 0.033). Results remained stable after excluding influential observations. In multivariable analysis (adjusted R² = 0.60), reflexive saccade duration (p < 0.001) and catch-up saccades (p = 0.019) were independently associated with lower SDMT. Conclusions: Baseline antisaccade reflexive saccade duration and smooth-pursuit catch-up saccades were prospectively associated with worse cognitive processing speed at long-term follow-up, suggesting eye-tracking-derived metrics as candidate objective correlates warranting prospective validation in MS. Full article

Background: Sleep disturbance is highly prevalent in dementia syndromes and increasingly viewed as a correlate of disease expression, not just ageing. This study investigated associations between subjective sleep quality, cognitive performance, and structural MRI markers in a dementia syndromes sample, comparing Alzheimer’s disease (AD) and non-AD groups, with exploratory inclusion of objective sleep and nocturnal blood pressure in a sub-sample. Methods: Observational cross-sectional design with 128 memory clinic patients (41 AD, 87 non-AD). Subjective sleep quality assessed via Pittsburgh Sleep Quality Index (PSQI). Cognitive measures: Mini-Mental State Examination (MMSE) for global cognition, Symbol Digit Modalities Test (SDMT) for processing speed, Trail Making Tests (TMT-A/B), and CLOX-1/2 for executive function. MRI markers: Scheltens scale (medial temporal atrophy), Fazekas scale (white matter hyperintensities). An exploratory sub-sample (N = 24) included additional nocturnal and daytime blood pressure monitoring; these data were analyzed descriptively and are reported as hypothesis-generating only. Analyses: group comparisons, Spearman correlations, hierarchical and logistic regression models in the full sample, and descriptive analyses with Spearman correlations in the exploratory sub-sample. Results: The AD group reported poorer sleep quality (higher PSQI) and worse cognitive performance across domains compared with the non-AD group (p < 0.001). Higher PSQI scores were associated with poorer cognitive outcomes, particularly executive function and processing speed, after adjustment for demographics and structural MRI markers (e.g., β = −0.181 to −0.425 for MMSE/SDMT). In the exploratory sub-sample (N = 24), PSQI was correlated with SDMT (ρ = −0.653) and TMT-A (ρ = 0.788). Conclusions: Subjective sleep quality was associated with cognitive performance in individuals with dementia syndromes after accounting for structural MRI markers. These findings suggest that subjective sleep disturbance may represent a complementary clinical dimension warranting further longitudinal research, including evaluation of whether sleep-focused interventions may offer clinical benefits. Full article

Background and Objectives: Employment is a major determinant of quality of life in people with multiple sclerosis (pwMS). This multicenter cross-sectional study aimed to identify which commonly studied demographic, disease-related, clinical, cognitive, and psychological variables, alongside the presence of lower urinary tract symptoms (LUTS), predict employment status in pwMS. Materials and Methods: Seventy-eight pwMS were classified as either full-time employed (n = 41) or non-employed (n = 37). Participants underwent clinical and neuropsychological assessment including disability status (Expanded Disability Status Scale; EDSS), fatigue (Modified Fatigue Impact Scale; MFIS), information processing speed (Symbol Digit Modalities Test; SDMT), depressive symptoms (Hospital Anxiety and Depression Scale-Depression; HADS-D), and LUTS status (presence/absence), alongside demographic and disease-related variables (sex, age, education level, relationship status, and disease duration). Results: Hierarchical binary logistic regression indicated that higher information processing speed was associated with higher odds of employment (OR = 1.11, p = 0.008), whereas the presence of LUTS was associated with lower odds of employment (OR = 0.13, p = 0.026). Disability severity, fatigue, depressive symptoms, demographic characteristics, and disease duration did not contribute in the final model (p > 0.05). Conclusions: Information processing speed and urinary dysfunction were associated with employment status in pwMS. Within the present sample, the multivariable model including these variables showed good discrimination between employed and non-employed participants. The findings should be interpreted as exploratory, and they require further confirmation in independent cohorts before any potential application is considered. Full article

Background/Objectives: Cognitive impairment and sleep disturbances are highly prevalent in individuals with multiple sclerosis (MS), particularly during middle age, and negatively affect functional independence and quality of life. Although physical exercise has demonstrated cognitive and sleep-related benefits in MS, tolerance to high-intensity training is often limited. Blood flow restriction (BFR) training, which combines low-load resistance exercise with partial vascular occlusion, has emerged as a feasible alternative. This study aimed to evaluate the effects of a 12-week BFR training program on performance in specific cognitive domains and sleep quality in middle-aged adults with MS. Methods: A randomized controlled trial was conducted in 65 adults with relapsing–remitting multiple sclerosis (RRMS) aged 40–65 years and an Expanded Disability Status Scale score below 7. Participants were randomly assigned to a BFR training group or a usual-care control group. The intervention consisted of supervised low-load resistance training with BFR performed twice weekly for 12 weeks. Outcomes assessed before and after the intervention included processing speed (Symbol Digit Modalities Test), executive function (Trail Making Test A and B), verbal fluency (Isaacs Set Test), and self-reported sleep quality (Pittsburgh Sleep Quality Index). Results: Compared with controls, participants in the BFR group showed significant improvements in specific cognitive domains, including processing speed, executive function, and verbal fluency. Significant reductions were also observed in self-reported global sleep disturbance and daytime dysfunction. No adverse events were reported. Conclusions: A 12-week BFR training program improved performance in key cognitive domains and self-reported sleep quality in middle-aged adults with MS, supporting its feasibility and potential clinical relevance as an exercise-based intervention. Full article

Background and Objectives: Interstitial lung diseases (ILDs) have been increasingly linked to neurological manifestations, including cognitive dysfunction and motor impairments, yet the prevalence and severity of these associations remain underexplored. We aimed to (1) compare the frequency of neurological symptoms between patients with and without ILD; (2) evaluate differences in cognitive and motor function scores; (3) perform subgroup analyses based on MoCA (Montreal Cognitive Assessment) scores; and (4) identify potential risk factors for neurological involvement. Methods: In this cross-sectional study, we enrolled 77 patients (40 with ILD and 37 without ILD). We recorded demographic data, smoking status, and body mass index (BMI). Neurological symptoms (tremor, diminished reflexes, paresthesia, etc.) were documented. Cognitive assessments included the MoCA and Symbol Digit Modalities Test (SDMT). Motor function was evaluated via the Berg Balance Scale (BBS), Timed Up and Go (TUG), Single-Leg Stance (SLS), and Grooved Pegboard Test (GPT). Results: Neurological symptoms were more prevalent in ILD (42.5%) than in non-ILD patients (16.2%; p = 0.003). Tremor appeared in 35% of ILD vs. 11% of non-ILD (p = 0.007). ILD patients showed lower mean SLS scores (7.2 ± 3.1 vs. 9.1 ± 3.8 s, p = 0.03) but similar TUG times (10.3 ± 2.1 vs. 9.6 ± 2.3 s, p = 0.20). MoCA scores < 26 were more common in those with ILDs (45% vs. 19%; p = 0.01). Among ILD participants, those with MoCA < 26 had significantly higher rates of tremor (51% vs. 24%, p = 0.04). Logistic regression revealed ILD diagnosis (OR = 3.12, 95% CI: 1.27–7.65, p = 0.013), older age (OR = 1.09 per year, p = 0.02), and smoking history (OR = 2.01, p = 0.05) as independent risk factors for neurological involvement. Conclusions: Our findings suggest that ILD is associated with a higher burden of neurological symptoms and subtle impairments in cognition and motor performance. Recognizing and addressing these manifestations may improve patient management, underscoring the importance of an integrative, multidisciplinary approach. Full article

Background: Opioid use disorder (OUD) and associated overdose deaths have reached epidemic proportions worldwide over the past two decades, with death rates for men consistently reported at twice the rate for women. We have recently reported sex-specific differences in electrocortical activity in persons with OUD in a visual object recognition task. The mesolimbic dopamine (DA) system is implicated in OUD but also plays a critical role in some disorders of visual attention and a modulatory role in the processing of visual stimuli in the blue cone pathway of the retina. We hypothesized that electrocortical responses to color stimuli would be affected differentially in men and women with OUD. Methods: Using a controlled, cross-sectional, age-matched (18–56 years) design, we evaluated color processing in male and female subjects recruited from a community-based, high-intensity residential substance abuse and detoxification treatment program. We evaluated electroencephalogram (EEG) event-related potentials (ERPs) and reaction time (RT), in male and female participants with OUD (n = 38) vs. sex- and age-matched non-OUD control participants (n = 37) in a simple color recognition Go/No-Go task, as well as perceptual and behavioral responses in physiological and neuropsychological tests. Results: N200, P300, and late potential (LP) Relevant stimulus-induced ERPs were evoked by the task and were well-differentiated from Irrelevant distractor stimuli. P300 amplitudes were significantly greater and N200 and LP latencies were significantly shorter in male vs. female non-OUD controls in this task. There were significant sex differences in N200, P300, and LP amplitudes and latencies between male vs. female non-OUD subjects and OUD differences with blue color as the Relevant stimulus. In the Binocular Rivalry Test, there were shorter dwell times for perceiving a blue stimulus in male OUD subjects and there were significant sex and OUD differences in neuropsychological tests including Finger Tapping, Trails A/B, and Symbol Digit Modalities Test. Conclusions: These findings suggest that there are significant sex-related physiological, perceptual, and cognitive differences in color processing that may result from deficits in DA production in the retina that mirror deficits in mesolimbic DA transmission correlating with OUD, suggesting that blue color processing has the potential to be an effective biomarker for brain DA and for diagnosis and monitoring of treatment efficacy in substance use disorders. Full article

Background: Group-based dance interventions (GBDIs) have emerged as a promising approach to rehabilitation for neurological disorders. This pilot study evaluated the feasibility and preliminary effects of a GBDI on motor function, cognition, fatigue, and quality of life in individuals with Relapsing–Remitting Multiple Sclerosis (RRMS). Methods: The intervention consisted of two 60-min ballet sessions per week over 10 weeks, structured as 10 min of warm-up, 40 min of ballet exercises, and 10 min of stretching. Assessments were conducted at baseline (T0) and post-intervention (T1). Concerning motor measures, balance was assessed using the Mini-BESTest; gait performance was evaluated through the 6-min walk test (6MWT), four square step test (FSST), and figure-of-8 walk test (F8WT); upper limb motor functions were assessed using the box and block test (BBT) and 9-hole peg test (9HPT). Regarding cognitive functions, the Rey auditory verbal learning test (RAVLT), symbol digit modalities test (SDMT), and trail making test A and B (TMT-A/B) were administered, while fatigue and quality of life were assessed using the modified fatigue impact scale (MFIS) and the Short Form survey-36 (SF-36), respectively. Results: At T1, participants improved in Mini-BESTest (+17.5%), 6MWT (+7.3%), and BBT dominant hand (+6.9%). Performance also improved on the following cognitive tests: RAVLT Immediate Recall (+5.9%), RAVLT Delayed Recall (+20.3%), SDMT (+47.4%), TMT-A (−21.2%), and (TMT-B −24.5%). Conclusions: The very small sample size (n = 4) and the lack of a control group probably restrict the generalizability of the findings. Consequently, the results obtained by this pilot study should be considered exploratory and hypothesis-generating rather than definitive evidence of a robust benefit. Future studies should confirm these findings by enlarging the intervention cohorts and adopting a randomized controlled design. In this sense, a 10-week GBDI may provide a solid base for a safe and promising dance-based rehabilitation program that could lead to improvements in motor, cognition, and psychosocial spheres in people with RRMS. Full article

Background/Objectives: Hemodialysis patients are disproportionately affected by impaired cognitive function in comparison to the general population. This systematic review aims to update and expand the current evidence regarding the effects of IET interventions on global cognition and specific cognitive domains, such as executive function, processing speed, and attention. Methods: A comprehensive search was conducted across three databases (PubMed, Scopus, and EBSCO) from database inception to 24 August 2025 for randomized controlled trials examining the effects of intradialytic exercise training on cognitive function, using combinations of the following search terms: hemodialysis, dialysis, dialy*, physical exercise, physical activity, exercise, activity, activit*, cognition, cognitive, and cognit*. Included studies were assessed for risk of bias and methodological quality using the Jadad Scale and NHLBI tools. Results: Seven studies were included in this review, encompassing (n = 332; 60.4% male) hemodialysis patients aged from 48 to 74.9 years. In comparison to standard care, IET significantly improved global cognition and specific cognitive domains. Regarding global cognitive function, interventions regardless of exercise type, which were performed thrice weekly over 12 to 16 weeks, significantly improved scores in (n = 4; 57%) studies using the Montreal Cognitive Assessment (MoCA) and in (n = 1; 14%) study using the Mini Mental State Examination. Regarding specific cognitive domains, aerobic exercise performed thrice weekly for 12 weeks were associated with statistically significant improvements in the following: executive function scores (n = 2; 29%), studied using the Trail Making Test (TMT) Part-B and TMTB-A; psychomotor processing speed (n = 1; 14%), studied using TMT-A and Symbol Digit Modality Test (SDMT); and alertness (n = 1; 14%), studied using the Test of Attentional Performance (TAP) test. Conclusions: The collective evidence confers that IET is an effective intervention that may moderately improve global and domain-specific cognitive function or, at the very least, serve in a protective capacity to stem potential future cognitive decline in this population. However, further large-scale randomized controlled trials that place emphasis on standardized reporting of exercise intervention characteristics and cognitive outcome measures are necessary to inform clinical practice. Full article

Background: Multiple Sclerosis (MS) is an inflammatory, autoimmune and neurodegenerative disease of the central nervous system that leads to the progressive loss of motor and sensory functions. Cognitive dysfunction is a common symptom that significantly affects quality of life and daily activities. The MS diagnosis involves progressive disability due to its neurodegenerative nature. Objective: to analyze the relationship between the Latin Norm Neuropsychological Assessment and Disability in Multiple Sclerosis (NLNAMS) battery and physical disability in patients with MS. Methods: A retrospective review of 100 medical records was conducted. Three sections of clinical information were analyzed: (1) sociodemographic data and medical history, (2) neurological examination including disability measures using the Expanded Disability Status Scale (EDSS) and the Multiple Sclerosis Severity Score (MSS), and (3) neuropsychological assessment results obtained through the NLNAMS battery to evaluate cognitive functioning across multiple domains. Results: High correlations were observed between EDSS scores and performance on the Symbol Digit Modalities Test (SDMT) and the Hopkins Verbal Learning Test–Revised (HVLT-R), which assess attention, processing speed and memory. Strong correlations were also found between EDSS and performance on verbal fluency tests, Trail Making Test (TMT), Rey–Osterrieth Complex Figure copy (ROCF), and the Modified Wisconsin Card Sorting Test (M-WCST). No significant correlation with MSS was found. Conclusions: The neuropsychological evaluation conducted with the NLNAMS battery showed a relationship between physical disability in multiple sclerosis and the domains of attention, processing speed, and memory. Therefore, this battery may provide valuable information for disease monitoring and prognosis. Full article

Objective: We aimed to explore associations between plasma neurofilament light chain (pNfL) and cognition through patient-reported outcomes (PROs) in multiple sclerosis (MS). Methods: In this cross-sectional study, we included 211 people with MS (PwMS) and collected data from pNfL (fully automated chemiluminescent enzyme immunoassay), EDSS, education, cognition (the Symbol Digit Modalities Test (SDMT), California Verbal Learning Test-II (CVLT II), and Brief Visuospatial Memory Test–Revised (BVMT-R)), the Modified Fatigue Impact Scale (MFIS), Beck Depression Inventory (BDI-II), Beck Anxiety Inventory (BAI), and Pittsburgh Sleep Quality Index (PSQI). Results: On multivariate linear regression models, higher educational attainment was significantly associated with lower pNfL (high school: Coeff = −0.22, 95% CI = −0.41 to −0.04, p = 0.019; university: Coeff = −0.22, 95% CI = −0.42 to −0.02, p = 0.030). In logistic regression models, the likelihood of having pNfL levels above normal thresholds increased by 56% for each one-point increment in the EDSS score (OR = 1.56, 95% CI = 1.23 to 1.98, p < 0.001) and was 2.5 times greater in individuals with impaired SDMT (OR = 2.50, 95% CI = 2.20 to 5.21, p = 0.014). No statistically significant associations were observed between pNfL and CVLT-II, BVMT-R, BDI-II, MFIS, BAI, or PSQI. Conclusions: Neuro-axonal damage in people with MS manifests clinically as increased disability and reduced attention and processing speed. However, these effects may be mitigated by greater brain resilience, as suggested by the protective role of higher educational attainment. The PROs assessed in this study showed no significant associations with pNfL levels, possibly due to measurement errors and heterogeneity, with limited sensitivity to neuro-axonal damage. Full article

The diagnosis and monitoring of progressive multiple sclerosis (PMS) require further development of fast and effective clinical tools. Relations between MRI-based brain atrophy measures and cognitive impairment in people with primary progressive and secondary progressive MS (PwPPMS, n = 20 and PwSPMS, n = 19, respectively) were investigated in a prospective study with follow-up after a mean 14.97 ± 4.67 months. MRI analysis showed that at baseline and follow-up in PwSPMS, the left thalamic fraction and corpus callosum fraction were significantly lower than in PwPPMS (baseline: 0.39 ± 0.04 vs. 0.44 ± 0.06, p = 0.0203 and 0.26 ± 0.05 vs. 0.30 ± 0.05, p = 0.0097; respectively and follow-up: 0.40 ± 0.04 vs. 0.44 ± 0.07, p = 0.0443 and 0.25 ± 0.06 vs. 0.30 ± 0.05, p = 0.0103, respectively). In contrast, only at baseline, PwPPMS had a significantly lower cerebellar white matter fraction (CWMF) than PwSPMS (1.83 ± 0.20 vs. 2.01 ± 0.24, p = 0.0132). No other significant differences were observed in the MRI fractions at either study time point or in the changes of the MRI fractions between the PwPPMS and PwSPMS. However, a significant decline in the right putaminal fraction was found during observation in PwSPMS (0.332% ± 0.05% vs. 0.328% ± 0.05%, p = 0.0479). Cognitive test scores and their changes did not differ significantly between the subgroups. Declines in the Brief Visuospatial Memory Test Revised in the whole PMS group (18.74 ± 7.43 vs. 17.03 ± 7.61, p = 0.0209) and in PwPPMS (19.50 ± 8.29 vs. 17.20 ± 7.72, p = 0.0338), as well as in the Brief International Cognitive Assessment for Multiple Sclerosis in PwPPMS (1.05 ± 0.89 vs. 1.25 ± 1.02, p = 0.0421), were observed. In both PwPMS and PwPPMS, a worsening on the Symbol Digit Modalities Test (SDMT) was associated with the reduction of fractions of white matter, cerebellum and right thalamus. SDMT performance also correlated with both gray matter fraction (GMF) and CWMF in the whole group, and with cerebellar gray matter fraction (CGMF) in PwPPMS. In PwSPMS, only Stroop Color and Word Test scores correlated with GMF and CGMF. In conclusion, subtle differences between PwPPMS and PwSPMS were detected both in MRI and neuropsychological parameters. Thus, our results indicate the need for a multicomponent attempt in characterizing progression in different clinical courses of MS. Full article

Background and Objectives: Multiple sclerosis (MS) is a chronic autoimmune, inflammatory, and neurodegenerative central nervous system disease. Neurodegeneration plays a central role in long-term disease progression. Materials and Methods: This cross-sectional study examined the relationship between neurodegenerative biomarkers, namely plasma neurofilament light chain (pNfL) levels and MRI-derived brain volume measurements, and clinical outcomes in 49 patients with relapsing–remitting multiple sclerosis (RRMS). Plasma NfL levels were quantified using Simoa technology, while MRI data was analyzed via FreeSurfer to measure volumes of grey and white matter, specific brain structures, and ventricular sizes. Cognitive performance was assessed using the Symbol Digit Modalities Test (SDMT) and Brief Visuospatial Memory Test-Revised (BVMT-R). Disability was evaluated using the Expanded Disability Status Scale (EDSS). Results: The results indicated significant positive correlations between SDMT scores and volumes of grey matter, white matter, and various subcortical structures, suggesting that preserved brain volume is linked to better cognitive performance. Negative correlations were observed between SDMT scores and ventricular volumes, as well as between SDMT scores and EDSS scores, implying that cognitive decline corresponds with structural brain deterioration and increased disability. No significant associations were found between BVMT-R scores and imaging data or disability measures. Plasma NfL levels showed significant correlations with early disease relapses and enlargement of the third and fourth ventricles, but not with brain volume, cognitive tests, or EDSS scores. Conclusions: These findings indicate that MRI-based brain volumetrics, particularly grey and white matter measures, are stronger indicators of cognitive function and disability in RRMS than plasma NfL. Full article

Background/Objectives: Cognitive impairment is one of the most common and debilitating clinical features of Multiple Sclerosis (MS). Neuropsychological assessment, however, is time-consuming and requires personal resources, so, due to limited resources in daily clinical practice, information on cognitive profiles is often lacking, despite its high prognostic relevance. Time-saving and effective tools are required to bridge this gap. This study evaluates the sensitivity and specificity of a revised version of TRACK-MS (TRACK-MS-R), a recently published screening tool to identify cognitive impairment in MS in a fast and reliable way, offering a balance between efficiency and diagnostic yield for the individual patient. Methods: In this prospective cross-sectional study, 102 MS patients and 94 age-, sex-, and education-matched healthy controls (HC) completed an extensive neuropsychological assessment, including TRACK-MS-R, to test for cognitive processing speed (Symbol Digit Modalities Test, SDMT) and verbal fluency (Regensburger Word Fluency Test, RWT). Sensitivity of TRACK-MS-R was assessed by using the BICAMS-M battery as a reference, and specificity was determined by comparing MS patients to HC. Results: TRACK-MS-R demonstrated high sensitivity (97.44%) when compared to the gold standard as represented by BICAMS-M for early and accurately detecting cognitive impairment in MS patients. Additionally, as a potential cognitive marker, TRACK-MS-R showed a specificity of 82.98% in distinguishing MS patients from healthy controls. Conclusions: TRACK-MS-R proves to be a highly sensitive and time-efficient screening tool for detecting cognitive impairment in patients with MS, while demonstrating good specificity compared to HC. Whereas high sensitivity is a prerequisite for a valid screening tool, its relatively modest specificity compared to BICAMS-M (62.9%) calls for caution in interpreting standalone results but instead indicates more extensive neuropsychological testing. Its briefness and diagnostic accuracy support its implementation in routine clinical practice, particularly in time-constrained settings. Full article