Do stroke services still show sex differences? A multicenter study.

BACKGROUND: The issue of sex differences in stroke has gained concern in the past few years. However, multicenter studies are still required in this field. This study explores sex variation in a large number of patients and compares stroke characteristics among women in different age groups and across different countries. METHODS: This multicenter retrospective cross-sectional study aimed to compare sexes regarding risk factors, stroke severity, quality of services, and stroke outcome. Moreover, conventional risk factors in women according to age groups and among different countries were studied. RESULTS: Eighteen thousand six hundred fifty-nine patients from 9 countries spanning 4 continents were studied. The number of women was significantly lower than men, with older age, more prevalence of AF, hypertension, and dyslipidemia. Ischemic stroke was more severe in women, with worse outcomes among women (p: < 0.0001), although the time to treatment was shorter. Bridging that was more frequent in women (p:0.002). Analyzing only women: ischemic stroke was more frequent among the older, while hemorrhage and TIA prevailed in the younger and stroke of undetermined etiology. Comparison between countries showed differences in age, risk factors, type of stroke, and management. CONCLUSION: We observed sex differences in risk factors, stroke severity, and outcome in our population. However, access to revascularization was in favor of women.

External quality monitoring facilitates improvement in already well-performing stroke units: insights from RES-Q Poland.

INTRODUCTION: The Registry of Stroke Care Quality (RES-Q) is used in Poland for quality monitoring by numerous hospitals participating in the Angels Initiative. Our aim was to assess the degree of improvement in highly stroke-oriented centres that report cases to the RES-Q each year. MATERIAL AND METHODS: This retrospective analysis included Polish stroke units that from January 2017 to December 2020 contributed to the RES-Q at least 25 patients annually. RESULTS: Seventeen out of 180 Polish stroke units reported patients each year (2017, n = 1,691; 2018, n = 2,986; 2019, n = 3,750; 2020, n = 3,975). The percentage of ischaemic stroke patients treated with alteplase remained stable (26%, 29%, 30% and 28%, respectively). The door-to-needle time progressively decreased, from a median 49 minutes to 32 minutes. The percentage of patients treated ≤ 60 minutes and ≤ 45 minutes significantly increased (from 68% to 86% and from 43% to 70%, respectively), with no change observed between 2019 and 2020. Despite a general improvement in dysphagia screening (81%, 91%, 98% and 99%), screening performed within the first 24h from admission became less frequent (78%, 76%, 69% and 65%). In-hospital mortality significantly increased (11%, 11%, 13% and 15%), while the proportion of patients discharged home remained stable. CONCLUSIONS: Quality-oriented projects facilitate the improvement of stroke care, even in centres demonstrating good baseline performance. Polish stroke units that consistently reported cases to the RES-Q demonstrated improvement in terms of door-to- -needle time and dysphagia screening. However, there is still a need to shorten the time to dysphagia screening, and carefully monitor stroke unit mortality following the COVID-19 pandemic.

Analysis of seroconversion following COVID-19 vaccination among multiple sclerosis patients treated with disease-modifying therapies in Poland.

CLINICAL RATIONALE FOR THE STUDY: The rapid spread of SARS-CoV-2 throughout the world has highlighted the importance of vaccinations to control the pandemic and to protect people at risk for severe disease courses. Disease-modifying therapies (DMT) in multiple sclerosis (MS), whether immunomodulatory or immunosuppressive, may affect the immune response. Therefore, the question arose as to whether these vaccinations would be effective. AIM OF THE STUDY: We planned a study to assess the immune response to SARS-CoV-2 vaccines by type of therapy. MATERIAL AND METHODS: Participants were recruited from 14 Polish MS centres. The data was obtained by neurologists using a questionnaire. We collected data on 353 MS patients (269 females, 84 males) who received complete primary SARS-CoV-2 vaccination. All persons with MS (PwMS) were treated with disease-modifying therapies. RESULTS: 305 out of 353 PwMS (86.4%) were positive for IgG Abs against SARS-CoV-2 S domain S1 Ag after vaccination. A strong immune response was noted in 129 PwMS (36.5%). The rate of seroconversion after SARS-CoV-2 vaccination in PwMS who received immunomodulatory DMTs (interferon beta, glatiramer acetate, teriflunomide, dimethyl fumarate, natalizumab) was 91.5%, in PwMS receiving immune reconstruction therapy (alemtuzumab, cladribine) was 92%, and in immunosuppressive DMTs (fingolimod, ocrelizumab), the seroconversion rate was 59%. CONCLUSIONS AND CLINICAL IMPLICATIONS: Our study shows that, in PwMS receiving immunomodulatory therapy, the immune response to vaccination is generally excellent. Even in immunosuppressive patients, seroconversion is satisfactory.

Comparative features and outcomes of major neurological complications of COVID-19.

BACKGROUND AND PURPOSE: The aim of this study was to assess the neurological complications of SARS-CoV-2 infection and compare phenotypes and outcomes in infected patients with and without selected neurological manifestations. METHODS: The data source was a registry established by the European Academy of Neurology during the first wave of the COVID-19 pandemic. Neurologists collected data on patients with COVID-19 seen as in- and outpatients and in emergency rooms in 23 European and seven non-European countries. Prospective and retrospective data included patient demographics, lifestyle habits, comorbidities, main COVID-19 complications, hospital and intensive care unit admissions, diagnostic tests, and outcome. Acute/subacute selected neurological manifestations in patients with COVID-19 were analysed, comparing individuals with and without each condition for several risk factors. RESULTS: By July 31, 2021, 1523 patients (758 men, 756 women, and nine intersex/unknown, aged 16-101 years) were registered. Neurological manifestations were diagnosed in 1213 infected patients (79.6%). At study entry, 978 patients (64.2%) had one or more chronic general or neurological comorbidities. Predominant acute/subacute neurological manifestations were cognitive dysfunction (N = 449, 29.5%), stroke (N = 392, 25.7%), sleep-wake disturbances (N = 250, 16.4%), dysautonomia (N = 224, 14.7%), peripheral neuropathy (N = 145, 9.5%), movement disorders (N = 142, 9.3%), ataxia (N = 134, 8.8%), and seizures (N = 126, 8.3%). These manifestations tended to differ with regard to age, general and neurological comorbidities, infection severity and non-neurological manifestations, extent of association with other acute/subacute neurological manifestations, and outcome. CONCLUSIONS: Patients with COVID-19 and neurological manifestations present with distinct phenotypes. Differences in age, general and neurological comorbidities, and infection severity characterize the various neurological manifestations of COVID-19.

Sense of happiness in Polish patients with multiple sclerosis.

INTRODUCTION: Happiness is crucial to patient well-being and their acceptance of their disease. The aim of this study was to assess the sense of happiness in persons with multiple sclerosis (PwMS), compare it to the level of happiness in patients with other neurological conditions, and determine which factors affect the sense of happiness in PwMS. MATERIAL AND METHODS: Five hundred and eighty-nine PwMS and 145 control subjects (post-stroke patients with chronic pain syndromes and neuropathies) were included in the study. Due to the differences between the groups in terms of demographic variables, an adjusted group of PwMS (n = 145) was selected from the entire group of PwMS. All patients were assessed using the Oxford Happiness Questionnaire (OHQ), the Satisfaction with Life Scale (SLS), and the Family APGAR Questionnaire. Based on regression analysis, the study examined which variables affected the level of happiness in the groups. RESULTS: Analysis of the OHQ scores showed that PwMS had a lower sense of happiness compared to the control group in the overall score [113.21 (25-42) vs. 119.88 (25-49), respectively; p = 0.031] and the subscales (OHQ subscale 1 - 54.52 vs. 57.84, respectively; p = 0.027; subscale 2 - 35.61 vs. 37.67; respectively; p = 0.044). Based on linear regression analysis, life satisfaction (ß = 0.40; p < 0.001), positive orientation (ß = 0.32; p < 0.001), and primary education (ß = 0.08; p = 0.009) were the most significant predictors of a higher level of happiness in PwMS. Similar results were found in the control group. CONCLUSIONS: The sense of happiness in PwMS was lower than in patients with other conditions. The most important factors influencing happiness included life satisfaction and positive orientation. Influencing these predictors should be the aim of psychological interventions, especially in patients with a reduced sense of happiness.

Systemic thrombolysis in ischaemic stroke patients with COVID-19.

OBJECTIVE: Intravenous thrombolysis (IVT) with recombinant tissue plasminogen activator is the core medical therapy of acute ischaemic stroke (AIS). COVID-19 infection negatively modifies acute stroke procedures and, due to its pro-coagulative effect, may potentially impact on IVT outcome. Thus, short-term efficacy and safety of IVT were compared in patients with and without evidence of SARS-CoV-2. METHODS: An observational, retrospective study included 70 patients with AIS, including 22 subjects (31%) with evidence of acute COVID-19 infection, consecutively treated with IVT in 4 stroke centres between 15 September and 30 November 2020. RESULTS: Patients infected with COVID-19 were characterized by higher median of National Institute of Health Stroke Scale (NIHSS) score (11.0 vs. 6.5; p < .01) and D-dimers (870 vs. 570; p = .03) on admission, higher presence of pneumonia (47.8% vs. 12%; p < .01) and lower percentage of 'minor stroke symptoms' (NIHSS 1-5 pts.) (2% vs., 18%; p < .01). Hospitalizations were longer in patients with COVID-19 than in those without it (17 vs. 9 days, p < .01), but impact of COVID-19 infection on patients' in-hospital mortality or functional status on dismission has been confirmed neither in uni- or multivariate analysis. CONCLUSION: SARS-CoV-2 infection prolongs length of stay in hospital after IVT, but does not influence in-hospital outcome.

Did COVID-19 impact stroke services? A multicenter study.

BACKGROUND: It has been reported that acute stroke services were compromised during COVID-19 due to various pandemic-related issues. We aimed to investigate these changes by recruiting centers from different countries. METHODS: Eight countries participated in this cross-sectional, observational, retrospective study by providing data from their stroke data base. We compared 1 year before to 1 year during COVID-19 as regards onset to door (OTD), door to needle (DTN), door to groin (DTG), duration of hospital stay, National Institute of Health Stroke Scale (NIHSS) at baseline, 24 h, and at discharge as well as modified Rankin score (mRS) on discharge and at 3 months follow-up. RESULTS: During the pandemic year, there was a reduction in the number of patients, median age was significantly lower, admission NIHSS was higher, hemorrhagic stroke increased, and OTD and DTG showed no difference, while DTN time was longer, rtPA administration was decreased, thrombectomy was more frequent, and hospital stay was shorter. mRS was less favorable on discharge and at 3 months. CONCLUSION: COVID-19 showed variable effects on stroke services. Some were negatively impacted as the number of patients presenting to hospitals, DTN time, and stroke outcome, while others were marginally affected as the type of management.

Highly active disease and access to disease-modifying treatments in patients with relapsing-remitting multiple sclerosis in Poland.

INTRODUCTION: In Poland, access to second-line disease-modifying treatments (DMTs) for relapsing-remitting multiple sclerosis is limited by reimbursement criteria that require evidence of more aggressive disease compared to the approved indications. MATERIAL AND METHODS: In a retrospective study carried out in DMT clinics across Poland, we asked neurologists to provide patient data on relapses and neuroimaging disease activity. Included were only patients with active disease, defined as one or more relapse and at least one new lesion between starting DMT and the last visit. For patients who had not received DMT, active disease was defined as at least one gadolinium-positive lesion or two or more new T2 lesions and two or more relapses within 12 months. We analysed the proportions of patients eligible for second-line DMTs based on the current reimbursement criteria and based on the broader criteria, which were in line with the approved indications. RESULTS: In total, 48 neurologists provided data for 641 patients (women 64%; mean age 38 years). Of the 641 patients, 610 (95%) received DMTs: 532 first-line and 78 second-line. Of the 532 patients on first-line DMTs, 40 (7.5%) were eligible for second-line treatment based on the current reimbursement criteria, and an additional 126 (23.6%) would be eligible for second-line treatment based on the broader criteria. Of the 31 patients who did not receive any DMTs, one patient was eligible for second-line treatment, and another two patients would be eligible for second-line treatment based on the broader criteria. Moreover, 13 previously treated patients would be eligible for second-line DMTs based on the broader criteria. When extrapolated to the whole of Poland, our study shows that an additional 1,581 patients would be eligible for second-line DMTs if the current reimbursement criteria were to be replaced by broader criteria complying with the approved indications. CONCLUSIONS: An urgent change is required in the reimbursement criteria in order to expand access to second-line DMTs for patients with relapsing-remitting MS in Poland.

Clinical course and outcome of SARS-CoV-2 infection in multiple sclerosis patients treated with disease-modifying therapies - the Polish experience.

INTRODUCTION: The aim of this study was to report the course and outcome of SARS-CoV-2 infection in multiple sclerosis (MS) patients treated with disease-modifying therapies (DMTs) in Poland. A major concern for neurologists worldwide is the course and outcome of SARS-CoV-2 infection in patients with MS treated with different DMTs. Although initial studies do not suggest an unfavourable course of infection in this group of patients, the data is limited. MATERIALS AND METHODS: This study included 396 MS patients treated with DMTs and confirmed SARS-CoV-2 infection from 28 Polish MS centres. Information concerning patient demographics, comorbidities, clinical course of MS, current DMT use, as well as symptoms of SARS-CoV-2 infection, need for pharmacotherapy, oxygen therapy, and/or hospitalisation, and short-term outcomes was collected up to 30 January 2021. Additional data about COVID-19 cases in the general population in Poland was obtained from official reports of the Polish Ministry of Health. RESULTS: There were 114 males (28.8%) and 282 females (71.2%). The median age was 39 years (IQR 13). The great majority of patients with MS exhibited relapsing-remitting course (372 patients; 93.9%). The median EDSS was 2 (SD 1.38), and the mean disease duration was 8.95 (IQR 8) years. Most of the MS patients were treated with dimethyl fumarate (164; 41.41%). Other DMTs were less frequently used: interferon beta (82; 20.70%), glatiramer acetate (42; 10.60%), natalizumab (35;8.84%), teriflunomide (25; 6.31%), ocrelizumab (20; 5.05%), fingolimod (16; 4.04), cladribine (5; 1.26%), mitoxantrone (3; 0.76%), ozanimod (3; 0.76%), and alemtuzumab (1; 0.25%). The overall hospitalisation rate due to COVID-19 in the cohort was 6.81% (27 patients). Only one patient (0.3%) died due to SARS-CoV-2 infection, and three (0.76%) patients were treated with mechanical ventilation; 106 (26.8%) patients had at least one comorbid condition. There were no significant differences in the severity of SARS-CoV-2 infection regarding patient age, duration of the disease, degree of disability (EDSS), lymphocyte count, or type of DMT used. CONCLUSIONS AND CLINICAL IMPLICATIONS: Most MS patients included in this study had a favourable course of SARS-CoV-2 infection. The hospitalisation rate and the mortality rate were not higher in the MS cohort compared to the general Polish population. Continued multicentre data collection is needed to increase the understanding of SARS-CoV-2 infection impact on the course of MS in patients treated with DMTs.

Psychological factors associated with self-management in multiple sclerosis.

OBJECTIVE: Patient's engagement in their own treatment has been shown to improve clinical outcomes. A better understanding of the association between self-management in multiple sclerosis (MS) and potentially modifiable psychological factors may provide clinicians with strategies to design and stimulate better patient activation for self-managing health. Therefore, in this study, we examined whether cognitive factors, namely self-efficacy, acceptance of illness, optimism, and health locus of control (HLC), are associated with self-management in MS. METHODS: This is a cross-sectional study. A total of 382 patients with MS who completed the MS Self-Management Scale-Revised and the questionnaires that measure self-efficacy, optimism, illness acceptance, and HLC were included in the study. RESULTS: A hierarchical multiple regression revealed that power of others' HLC (b = 0.42, P ≤ .001), optimism (b = 0.27, P ≤ .01), internal HLC (b = -0.11, P = .017), and self-efficacy (b = 0.11, P = .031), together with control variables (longer disease duration and higher disability), explained 30% of the variance in the dependent variable. CONCLUSIONS: In the case of MS, self-management is associated with patient's perception that healthcare professionals control their health, higher self-efficacy, optimism, and, surprisingly, lower internal HLC. The results of this study indicate the vital role of the healthcare staff in encouraging the patients with MS toward activities related to self-management and provide new insights on the psychological intervention aimed at improving self-management by patients.

Pediatric multiple sclerosis - current status of epidemiology, diagnosis and treatment.

Multiple sclerosis (MS) is a chronic inflammatory and demyelinating disease of the central nervous system that mostly affects younger adults. However, the first symptoms of MS can appear in children and adolescents before the age of 18, and we call this paediatric MS (PMS). It is estimated that paediatric MS accounts for 3-5% of the general population of patients with MS. Despite the fundamental si-milarities to adult MS, PMS has many distinctive features. Paediatric MS has a milder course compared to adults, but leads to sig-nificant disability at an early age. PMS is relapsing-remitting in 95-98% of cases; the primary progressive manifestation is much less common than in adults. The differential diagnosis of MS in children should include other childhood demyelinating diseases, mitochondrial and metabolic diseases, connective tissue diseases, and neuroborreliosis. Differentiating acute disseminated en-cephalomyelitis (ADEM) from the first onset of MS remains the biggest challenge. Over the past 10 years, understanding of the epidemiology, pathophysiology, diagnosis, and treatment of MS in children has significantly expanded. The diagnostic criteria leading to earlier diagnosis and initiation of disease-modifying therapy (DMT) have changed, and the number of drugs used in children has increased. However, many important issues require further research. This review discusses the current state of knowledge regarding the epidemiology, diagnosis, and treatment of multiple sclerosis in children.

Clinical and epidemiological characteristics of multiple sclerosis patients receiving disease-modifying treatment in Poland.

AIM OF STUDY: The aim of this study was to collect and analyse data on relapsing-remitting multiple sclerosis (RRMS) patients receiving disease-modifying therapies (DMTs) in Poland. MATERIAL AND METHODS: This observational, multicentre study with prospective data collection included RRMS patients receiving DMTs reimbursed by the National Health Fund (NFZ) in Poland, monitored by the Therapeutic Programme Monitoring System (SMPT). Demographic profiles, disability status, and treatment modalities were analysed. RESULTS: Data from 11,632 RRMS patients was collected (from 15,368 new prescriptions), including 10,649 patients in the first-line and 983 in the second-line therapeutic programme of DMTs. The proportion of females to males was 2.39 in the first-line and 1.91 in the second-line. The mean age at DMTs start was 36.6 years in the first-line and 35.1 in the second-line. The median time from the first symptoms to MS diagnosis was 7.4 months, and from MS diagnosis to treatment it was 18.48 months. A total of 43.4% of MS patients started DMT during the 12 months following diagnosis. There was a positive correlation between the duration from MS diagnosis to the start of DMT and a higher initial EDSS value [correlation 0.296 (p < 0.001)]. About 10% of patients stopped DMTs. In Poland, about one third of all MS patients are treated in both lines, and the choice of first-line treatment depends on the region of the country. CONCLUSIONS: In Poland there is a need to increase MS patient access to DMTs by improving the organisation of drug programmes.

Health locus of control and mental health in patients with multiple sclerosis: Mediating effect of coping strategies.

In patients with multiple sclerosis (MS), mental health is significantly affected and conditioned by many factors, including psychological ones. This study team aimed to determine whether different coping strategies mediate the relationship between health locus of control (HLC) and mental health in MS patients. In this cross-sectional study, a total of 382 patients with MS were included. The patients completed General Health Questionnaire-12, Coping Inventory for Stressful Situations, and Multidimensional Health Locus of Control Scale. The demographic and clinical characteristics of the patients were collected using a self-report survey and neurological assessment. A mediation analysis was used to test the study hypothesis. Problem-oriented coping was found to be a significant mediator in the relationship between internal HLC and mental health (indirect effect: -0.129 [95% confidence interval [CI]: -0.193, -0.079]; standardized indirect effect: -0.113 [95% CI: -0.165, -0.070]). Emotion-focused coping was found to be a significant mediator in the relationship between power of others HLC and mental health (indirect effect: 0.114 [95% CI: 0.058, 0.178]; standardized indirect effect: 0.125 [95% CI: 0.062, 0.195]). Emotion-focused coping was also found to be a significant mediator in the relationship between chance HLC and mental health (indirect effect: 0.215 [95% CI: 0.154, 0.281]; standardized indirect effect: 0.209 [95% CI: 0.149, 0.272]). Patients with internal HLC were found to have positive mental health due to their problem-focused coping strategies, while patients with external HLC had worse mental health as they used more emotion-focused strategies. Hence, problem-focused and emotion-focused coping strategies can be considered mediators of the relationship between HLC and mental health in patients with MS.

Increasing prevalence and incidence of multiple sclerosis in Poland.

Epidemiologic data on multiple sclerosis (MS) in Poland are limited. Our objectives were to assess a mean annual incidence rate, and MS prevalence on December 31, 2015 in the Swietokrzyskie province (central Poland). We analyzed data of 1525 patients, collected in the Polish Multiple Sclerosis Registry. On December 31, 2015, overall crude prevalence of MS was not less than 121.3/100,000 (95% CI, 114.6-128.4). Significantly higher prevalence was recorded in females (167.1; 95% CI, 155.6-179.1) than in males (73.2; 95% CI, 64.2-82.6; P<0.001). The age-adjusted prevalence standardized to the European standard population was 114.2/100,000 (95% CI, 106.2-121.5). The female-male ratio was 2.4:1. The mean annual incidence was 4.5/100,000 (95% CI, 3.8-5.2). Increased MS prevalence and incidence compared to 2010 and previous studies from Poland confirmed that central Poland is a high risk area for MS.

Prevalence and incidence of multiple sclerosis in central Poland, 2010-2014.

BACKGROUND: Comprehensive epidemiologic data for multiple sclerosis (MS) in Poland are limited. The aim of this cross-sectional population-based study was to determine the incidence and prevalence of MS in the Swietokrzyskie Region (central Poland). METHODS: This study identified MS cases every year between 1 January 2010 and 31 December 2014. The study area population on the prevalence day (December 31, 2014) was 1,263,176 (646,506 women and 616,670 men). A total of 1462 patients with a clinically definite diagnosis of MS according to McDonald's criteria (2005), recorded in the Polish Multiple Sclerosis Registry, were considered for estimation of crude, age- and sex-specific prevalence, and incidence. RESULTS: The overall crude prevalence rate of confirmed MS patients was 115.7/100,000 (95 % confidence interval (CI), 111.2-121.4). A significantly higher prevalence was recorded in females (159.6/100,000; 95 % CI, 151.1-165.3) than in males (69.7/100,000; 95 % CI, 62.4-77.3) (P < 0.001). Age-adjusted rates for the Polish and European Standard Population were 109.8/100,000 (95 % CI, 105.4-114.8) and 106.6/100,000 (95 % CI, 101.1-111.2), respectively. The female/male ratio was 2.4. The mean annual incidence was 4.2/100,000 (95 % CI. 3.7-4.4). CONCLUSION: The incidence and prevalence of MS in the Swietokrzyskie region confirm that central Poland is a high risk area for MS. Compared with previous epidemiologic studies from Poland, the prevalence of MS has increased during recent years.

Intravenous Thrombolysis with Recombinant Tissue-type Plasminogen Activator for Acute Ischemic Stroke in Patients with Metabolic Syndrome.

BACKGROUND: The metabolic syndrome (MetS) is common in patients with acute ischemic stroke (IS); however, its impact on outcome after intravenous thrombolysis (iv-thrombolysis) remains unclear. Thus, we aimed at evaluating the relationship between MetS and functional long-term outcome, mortality, and the presence of hemorrhagic complications in patients with IS treated with iv-thrombolysis. METHODS: We retrospectively evaluated the demographic and clinical data of 535 Caucasian patients with acute IS who were consecutively treated with iv-thrombolysis from September 2006 to June 2013 in 2 experienced stroke centers in Poland. A favorable functional long-term outcome was defined as a modified Rankin scale score less than or equal to 2 points on day 90, and hemorrhagic complications were assessed with European Cooperative Acute Stroke Study criteria. RESULTS: MetS was recognized in 192 (35.9%) patients (44.8% men; mean age, 70.8 ± 11.1 years), diabetes in 29.7%, dyslipidemia in 79.2%, and arterial hypertension in 75.5%. At 3 months, favorable outcome was found in 55.3% of patients, symptomatic intracerebral hemorrhage (SICH) in 18.3%, and 4.4 % of patients died. There was no difference regarding the presence of favorable outcome between patients with and without MetS (52.6% versus 56.9%, P = .34). The presence of SICH and 3-month mortality were more frequent in patients with MetS than without MetS (6.8% versus 2.9%, P = .03 and 23.4% versus 15.5%, P = .02, respectively); however, a multivariate analysis showed no impact of MetS on mortality or SICH. CONCLUSIONS: Results of our study provide no data to suggest that the effect of intravenous tissue-type plasminogen activator differs based on the presence or absence of MetS.

Metabolic Syndrome in Polish Ischemic Stroke Patients.

BACKGROUND: Metabolic syndrome (MetS) predisposes individuals to cardiovascular disease or stroke development. We aimed at evaluating the prevalence of MetS in a population of acute ischemic stroke (IS) patients from central Poland and at estimating the relationship between MetS and stroke risk. METHODS: We analyzed 672 IS patients who were consecutively admitted to stroke units. The control group was composed of 612 patients with other neurologic disorders. MetS was diagnosed if 3 of 5 factors were present (obesity, increased blood pressure, increased triglycerides, low high-density lipoprotein [HDL] cholesterol, and fasting hyperglycemia) according to the Unified Criteria for Clinical Diagnosis of the Metabolic Syndrome (2009). RESULTS: MetS was diagnosed in 61.2% of stroke patients versus 18.1% of the control group (P < .001). Multiple logistic regression showed that MetS was 1.8 times more common in women than in men (odds ratio [OR], 1.8; 95% confidence interval [CI], 1.4-2.5). The adjusted OR (95% CI) associated with MetS was 2.44 (1.48-3.64; P < .001) for IS. Hypertension and hypertriglyceridemia were the most frequent disturbances of IS patients (87.2% and 68.2%, respectively). The analysis of the interaction between MetS and its components showed significant associations with hypertension (OR, 2.15; 95% CI, .98-4.24; P < .01), high triglyceride levels (OR, 4.35; 95% CI, 2.87-9.43; P < .0001), and low HDL cholesterol levels (OR, 5.12; 95% CI, 3.15-8.20; P < .001). CONCLUSIONS: Over 60% of Polish IS patients have MetS. The prevalence of MetS was significantly higher in women than in men. Thus, MetS may be a risk factor for IS.

[The role of vitamin D in the pathogenesis and course of multiple sclerosis]. / Wplyw witaminy D na patogeneze i przebieg stwardnienia rozsianego.

Multiple sclerosis (MS) is a progressive, inflammatory demyelinating disease of the central nervous system, with an unknown aetiology. The pathogenesis of MS is mainly related with the autoimmune process, environmental factors and genetic predispositions. In recentyears, hypovitaminosis D has been considered as an independent factor increasing the risk of multiple sclerosis. Hypovitaminosis D is defined as a condition in which the concentration of 25(OH)D in serum is lower than 75 nmol/l (30 ng/ml). Numerous studies have documented the relation between the occurrence of MS, its course and activity, and vitamin D concentration dependent on sunlight and dietary intake. Conclusions from research on the effectiveness of supplementation have also been presented. They indicate the necessity of using higher doses of calcitriol. Most authors consider a preventive dose of 4000 IU daily as safe and well-tolerated by people living in low-insolation latitudes. It has been pointed out that vitamin D supplementation is indicated and effective only in cases of actual deficiency. The low risk and low cost of vitamin D supplementation, as well as patients' positive attitude towards it, makes it a promising strategy for decreasing the incidence and alleviating the signs and symptoms of multiple sclerosis.

Symptomatology and pathogenesis of different types of pain in multiple sclerosis.

Multiple sclerosis (MS) is a progressive disease of the central nervous system. It is characterized by disseminated foci of demyelination, which are responsible for the diverse clinical picture of MS. Pain is a frequent but underestimated symptom of multiple sclerosis. It is estimated to affect 29-86% of MS patients in various stages of the disease and severely influences rehabilitation and quality of life. The pain experienced by MS patients is generally caused by nervous system damage during the course of the disease process and can usually be characterized as central neuropathic pain (less frequently as peripheral or nociceptive pain). The most frequent symptoms include dysesthetic extremity pain, painful tonic spasms, Lhermitte's sign, trigeminal neuralgia, headaches and low back pain. This paper discusses the probable mechanisms behind the development of pain in MS, the prevalence, classification, types of pain, as well as the most effective treatment methods.