Segmented neutrophil-to-monocyte ratio and systemic immune-inflammation index associated with the severity and functional prognosis of acute ischemic stroke.

PURPOSE/AIM OF THE STUDY: To identify the inflammation indexes associated with the severity and functional prognosis in ischemic stroke. MATERIAL AND METHODS: A prospective study was conducted with ischemic stroke cases included in the i-ReNe clinical registry. Patients were divided into groups according to the severity on admission measured by the National Institutes of Health Stroke Scale (NIHSS) and the functional prognosis at 30 and 90 days of discharge measured by the modified Rankin Scale (mRS). RESULTS: We included 145 patients with a mean age of 61.5 ± 12.75, 97 (66.9%) were men. The leukocyte and neutrophil counts, Neutrophil-to-Lymphocyte ratio (NLR), Derived Neutrophil-to-Lymphocyte ratio (dNLR), Platelet-to-Lymphocyte ratio (PLR), Segmented Neutrophil-to-Monocyte ratio (SeMo ratio), and Systemic Immune-inflammation index (SII) were higher in moderate-to-severe stroke (NIHSS ≥6). NLR, PLR, SeMo ratio, and SII were higher in the group with severe disability and death at 30 days (mRS ≥4). In the multiple logistic regression analyses, SeMo ratio >14.966 and SII >623.723 were associated with moderate-to-severe stroke (NIHSS ≥6). In addition, SeMo ratio >7.845 was associated with severe disability and death at 30 days (mRS ≥4). CONCLUSIONS: Systemic inflammation indexes could be rapid and low-cost markers used in the initial evaluation of ischemic stroke, whose values could help to stratify patients according to their severity and functional prognosis. This is the first study to establish a relationship between ischemic stroke and the SeMo ratio.

Effectiveness and safety of mechanical thrombectomy for acute ischaemic stroke in Latin American countries: A systematic review.

OBJECTIVE: To describe the use, effectiveness, and safety outcomes of mechanical thrombectomy (MT) for acute ischemic stroke (AIS) in Latin American countries. MATERIALS AND METHODS: Studies reporting MT outcomes for AIS in Latin America were identified in CINAHL, MEDLINE, Web of Science, SciELO, EMBASE, and LILACS databases. Synthesis was conducted according to effectiveness (recanalization rates) and safety measures (mortality and functional independence at 90 days). RESULTS: Seventeen studies were included, mainly from public and university hospitals. MT utilization varied from 2.6% to 50.1%, while successful recanalization ranged from 63% to 95%. Functional independence 90 days after stroke (a modified Rankin scale score of 0 to 2) was achieved in less than 40% across most studies. Mortality rates were below 30%; studies with posterior circulation strokes reported higher mortality rates. The randomized trial reported better health outcomes for functional independence among patients in the MT group (OR 2.28; 95% CI, 1.41 - 3.69), favoring MT over standard care. CONCLUSIONS: The included studies had great methodological heterogeneity due to differences in study design, the MT time window, and stroke location. The only randomized trial showed improved functional independence and lower mortality rates with MT than with standard care. The rest of the studies reported similar findings to available literature. Efforts to improve stroke care are reflected in improved patient outcomes in the region. Future studies should consider standard time window criteria and reduce the risk of bias by including representative samples and comparison groups.

Five-Year Risk of Stroke after TIA or Minor Ischemic Stroke.

BACKGROUND: After a transient ischemic attack (TIA) or minor stroke, the long-term risk of stroke and other vascular events is not well known. In this follow-up to a report on 1-year outcomes from a registry of TIA clinics in 21 countries that enrolled 4789 patients with a TIA or minor ischemic stroke from 2009 through 2011, we examined the 5-year risk of stroke and vascular events. METHODS: We evaluated patients who had had a TIA or minor stroke within 7 days before enrollment in the registry. Among 61 sites that participated in the 1-year outcome study, we selected 42 sites that had follow-up data on more than 50% of their enrolled patients at 5 years. The primary outcome was a composite of stroke, acute coronary syndrome, or death from cardiovascular causes (whichever occurred first), with an emphasis on events that occurred in the second through fifth years. In calculating the cumulative incidence of the primary outcome and secondary outcomes (except death from any cause), we treated death as a competing risk. RESULTS: A total of 3847 patients were included in the 5-year follow-up study; the median percentage of patients with 5-year follow-up data per center was 92.3% (interquartile range, 83.4 to 97.8). The composite primary outcome occurred in 469 patients (estimated cumulative rate, 12.9%; 95% confidence interval [CI], 11.8 to 14.1), with 235 events (50.1%) occurring in the second through fifth years. At 5 years, strokes had occurred in 345 patients (estimated cumulative rate, 9.5%; 95% CI, 8.5 to 10.5), with 149 of these patients (43.2%) having had a stroke during the second through fifth years. Rates of death from any cause, death from cardiovascular causes, intracranial hemorrhage, and major bleeding were 10.6%, 2.7%, 1.1%, and 1.5%, respectively, at 5 years. In multivariable analyses, ipsilateral large-artery atherosclerosis, cardioembolism, and a baseline ABCD2 score for the risk of stroke (range, 0 to 7, with higher scores indicating greater risk) of 4 or more were each associated with an increased risk of subsequent stroke. CONCLUSIONS: In a follow-up to a 1-year study involving patients who had a TIA or minor stroke, the rate of cardiovascular events including stroke in a selected cohort was 6.4% in the first year and 6.4% in the second through fifth years. (Funded by AstraZeneca and others.).

Covid-19, impacto psicosocial en estudiantes de medicina.

No disponible.

COVID-19 Lockdown Effects on Acute Stroke Care in Latin America.

OBJECTIVES: COVID-19 pandemic has forced important changes in health care worldwide. Stroke care networks have been affected, especially during peak periods. We assessed the impact of the pandemic and lockdowns in stroke admissions and care in Latin America. MATERIALS AND METHODS: A multinational study (7 countries, 18 centers) of patients admitted during the pandemic outbreak (March-June 2020). Comparisons were made with the same period in 2019. Numbers of cases, stroke etiology and severity, acute care and hospitalization outcomes were assessed. RESULTS: Most countries reported mild decreases in stroke admissions compared to the same period of 2019 (1187 vs. 1166, p = 0.03). Among stroke subtypes, there was a reduction in ischemic strokes (IS) admissions (78.3% vs. 73.9%, p = 0.01) compared with 2019, especially in IS with NIHSS 0-5 (50.1% vs. 44.9%, p = 0.03). A substantial increase in the proportion of stroke admissions beyond 48 h from symptoms onset was observed (13.8% vs. 20.5%, p < 0.001). Nevertheless, no differences in total reperfusion treatment rates were observed, with similar door-to-needle, door-to-CT, and door-to-groin times in both periods. Other stroke outcomes, as all-type mortality during hospitalization (4.9% vs. 9.7%, p < 0.001), length of stay (IQR 1-5 days vs. 0-9 days, p < 0.001), and likelihood to be discharged home (91.6% vs. 83.0%, p < 0.001), were compromised during COVID-19 lockdown period. CONCLUSIONS: In this Latin America survey, there was a mild decrease in admissions of IS during the COVID-19 lockdown period, with a significant delay in time to consultations and worse hospitalization outcomes.

Management of acute ischemic stroke in patients with COVID-19 infection: Insights from an international panel.

OBJECTIVE: To present guidance for clinicians caring for adult patients with acuteischemic stroke with confirmed or suspected COVID-19 infection. METHODS: The summary was prepared after review of systematic literature reviews,reference to previously published stroke guidelines, personal files, and expert opinionby members from 18 countries. RESULTS: The document includes practice implications for evaluation of stroke patientswith caution for stroke team members to avoid COVID-19 exposure, during clinicalevaluation and conduction of imaging and laboratory procedures with specialconsiderations of intravenous thrombolysis and mechanical thrombectomy in strokepatients with suspected or confirmed COVID-19 infection. RESULTS: Conclusions-The summary is expected to guide clinicians caring for adult patientswith acute ischemic stroke who are suspected of, or confirmed, with COVID-19infection.

Stroke Care and Application of Thrombolysis in Ibero-America: Report From the SITS-SIECV Ibero-American Stroke Register

Background and Purpose: Standardized registries may provide valuable data to further improve stroke care. Our aim was to obtain updated information about characteristics of stroke patients and management of stroke across the Ibero-American countries, using a common in-hospital registry (Safe Implementation of Treatments in Stroke­Sociedad Iberoamericana de Enfermedades Cerebrovasculares) as a basis for further quality improvement. Methods: Data for this study were entered into the Safe Implementation of Treatments in Stroke registry from September 2009 to December 2013 by 58 centers in 14 countries. Data included demographics, risk factors, onset-to-door time, National Institutes of Health Stroke Scale score, stroke subtype, ischemic stroke etiology, treatments, 3-month mortality, and modified Rankin Scale score. Time to treatment was also recorded for patients treated with thrombolysis. Results: Five thousand four hundred one patients were registered; median age, 65 years; 46% women; 3915 (72.5%) ischemic strokes; 686 (13.7%) hemorrhagic strokes; 213 (4.3%) subarachnoid hemorrhages; 414 (8.3%) transient ischemic attacks; and 31 (0.6%) cerebral vein thrombosis. The most prevalent risk factors were hypertension (71.3%), dyslipidemia (35.2%), and diabetes mellitus (23.6%). Atrial fibrillation was present in 15.1%. Three hundred one ischemic strokes were treated with intravenous thrombolysis (IVT; 7.7%). Patients undergoing IVT were more severely affected (median baseline National Institutes of Health Stroke Scale score, 11 versus 6). The rate of symptomatic intracerebral hemorrhages after IVT was 5.7%. At 3 months, 60.3% of IVT-treated patients and 59.1% of untreated patients were independent (modified Rankin Scale score, 0­2). Mortality was 11.4% in treated and 12.8% in untreated patients. Conclusions: Safe Implementation of Treatments in Stroke­Sociedad Iberoamericana de Enfermedades Cerebrovasculares is the largest registry of a general stroke population and the first study to evaluate the level of IVT use in Ibero-America. It provides valuable information that may help to improve the quality of stroke care in the Ibero-American region.

Contribution of Onset-to-Alarm Time to Prehospital Delay in Patients with Ischemic Stroke.

BACKGROUND: Stroke is a leading cause of death and disability. Tissue plasminogen activator (tPA) improves the clinical outcome when administered properly; however, the most important factor to receive tPA is time. The main reason for late hospital arrival is a considerable delay in onset-to-alarm time (OAT), comprising more than 50% of the onset-to-door time. AIMS: To identify the factors associated with a delay in OAT and evaluate its contribution to onset-to-door time in ischemic stroke patients. METHODS: Prospective cohort of stroke patients admitted to the UANL University Hospital. OAT was defined as the time from identification of stroke symptoms to the decision to seek medical attention. RESULTS: A total of 189 patients were included. Mean age was 61 ± 13 years, 62% were men. One-hundred and one patients had a short OAT, but only 20.9% arrived during the first 3 hours after stroke onset. Being employed (P = 0032; odds ratio [OR] 2.784, 95% confidence interval [CI] 1.091-7.104), attributing symptoms to stroke (P = 0016; OR 3.348, 95% CI 1.254-8.936), and perceiving stroke symptoms as severe (P = 0031;OR 2.428, 95% CI 1.083-5.445) were associated with a shorter OAT. CONCLUSIONS: OAT consumes a considerable amount of the onset-to-door time. It is necessary to increase stroke knowledge and emphasize the severity of stroke, regardless of the severity of its clinical manifestations to reduce the prehospital delay, especially in countries with limited access to treatment with an extended time frame.

Difference in Stroke Knowledge between Rural and Urban Communities in a Developing Country after Community-Based Stroke Educational Campaigns: Results from a Cross-Sectional Study.

BACKGROUND: Ischemic stroke is a leading cause of disability and death in Mexico. Poor ability to identify signs and symptoms of ischemic stroke leads to longer hospital arrival times and precludes prompt treatment. The knowledge of stroke risk factors and warning signs in rural population is scarce. Since 2010, Stroke Education Campaigns are performed with a community-based approach. The aim of this study was to assess and compare stroke knowledge in rural and urban communities. METHODS: During World Stroke Campaign, a standardized questionnaire to assess knowledge of stroke risk factors and warning signs was applied in urban and non-urban communities of Nuevo Leon, Mexico. RESULTS: A total of 4,144 surveys were collected. Mean age was 44.2 ± 16.1 and 75.9% were women. People from rural and semi-urban areas mentioned > 3 risk factors (p < 0.001) and warning signs (p < 0.001) compared to the urban area. After logistic regression analysis, having received previous information about stroke remained significant for the knowledge of > 3 stroke risk factors and warning signs (p < 0.001; 95% CI 1.997-2.727; p < 0.001; 95% CI 1.880-3.787) respectively. CONCLUSIONS: Rural and semi-urban regions performed better than the urban population. Receiving stroke information is a determinant factor for stroke knowledge. Stroke Educational Campaigns are a cost-effective method for raising stroke awareness, thus reducing stroke burden.

[Impacto en el desenlace funcional en pacientes con ictus: experiencia de una unidad de cuidados neurovasculares].

Background and objective: Neurovascular care units (NCU) have a positive impact on the functional prognosis of stroke patients. The effectiveness of NCUs in Mexico has not been evaluated. Our objective was to determine the impact of an NCU in a third-level academic hospital in northeastern of Mexico. Method: We performed a prospective observational, analytic cohort study. The population was divided into two periods: the first one consisted of those patients admitted before the implementation of the NCU (2008-2010), and the second period consisted of patients admitted after the implementation of the UCN (2010-2014). Functional status was assessed with the modified Rankin scale at discharge and 3 months. Results and conclusions: 598 patients were included (period 1: 246; period 2: 352). Patients in period 2 had a higher deep venous thrombosis prophylaxis (odds ratio [OR]: 3.235; 95 % confidence interval [95 % CI]: 2.18-4.80; p = 0.01), a shorter hospital stay (OR: 0.42; 95 % CI: 0.29-0.62; p = 0.01) and less severe disability (Rankin ≥ 3) at 3 months of follow-up (OR: 0.42; 95 % CI: 0.29-0.62; p = 0.01). The implementation of an NCU in a third-level academic hospital improved the functional outcome at 3 months and decreased the days of in-hospital stay of patients with stroke.

Antecedentes y objetivo: Las unidades de cuidados neurovasculares (UCN) impactan favorablemente en el pronóstico funcional del paciente con ictus en comparación con las salas de internamiento general. La efectividad de las UCN en México no ha sido evaluada. Nuestro objetivo fue determinar el impacto que tiene una UCN en un hospital académico de tercer nivel del noreste de México. Método: Estudio de cohorte prospectivo, observacional y analítico. La población fue dividida en dos periodos: el primero consistió en aquellos pacientes ingresados antes de la implementación de la UCN (2008-2010), y el segundo consistió en pacientes ingresados posterior a la implementación de la UCN (2010-2014). Se evaluó el estado funcional al egreso y a los 3 meses. Resultados y conclusiones: Se incluyeron 598 pacientes (periodo 1: 246; periodo 2: 352). En el periodo 2 se incrementó la profilaxis de trombosis venosa profunda (razón de momios [RM]: 3.235; intervalo de confianza del 95 % [IC 95 %]: 2.18-4.80; p = 0.01) y se redujeron la estancia hospitalaria (RM: 0.42; IC 95 %: 0.29-0.62; p = 0.01) y la discapacidad funcional grave (Rankin ≥ 3) a los 3 meses de seguimiento (RM: 0.42; IC 95 %: 0.29-0.62; p = 0.01). La implementación de una UCN mejoró el desenlace funcional a 3 meses y disminuyó los días de estancia intrahospitalaria de pacientes con ictus.

Two kinds of apoplexy in the Colonial press. / Dos clases de apoplejía en la prensa novohispana.

In 1787, three Colonial physicians quoted from Le Clerc (1726-1798) in the Gazeta de México. The French author lists six specific cases where bloodletting is often fatal, including two kinds of apoplexy: the serous and the lacteal. Both conditions are nowadays unknown to the majority of specialists in clinical neurology, and we therefore conducted an historical review of these conditions.

Intrathecal gadodiamide for identifying subarachnoid and ventricular neurocysticercosis.

OBJECTIVE: Some neurocysticercosis cysts may remain hidden despite novel MRI sequences. This study evaluates the diagnostic value of gadodiamide (GDD)-contrasted MRI cisternography in selected cases of neurocysticercosis. METHODS: We included patients aged 18-65 years with a probable diagnosis of subarachnoid cysticercosis in whom previous neuroimaging studies failed to demonstrate the presence of cysts. One millilitre of GDD was administered intrathecally as a contrast agent with subsequent performance of MRI. RESULTS: Fourteen patients were included. Optimal contrast diffusion was achieved in nine patients, and partial diffusion was achieved in 4. Intracranial vesicles were identified in 10 patients, with the presence of more than 60 basal subarachnoid vesicles being revealed in all, with five cysts in the fourth ventricle in four patients and a floating cyst in the lateral ventricle in one. In one case, intrathecal GDD demonstrated spinal cysticercosis. No adverse events were reported after intrathecal GDD administration. CONCLUSIONS: Intrathecal GDD administration is useful for the diagnosis of subarachnoid and intraventricular neurocysticercosis and can be used to improve diagnostic accuracy in selected cases.

Implementation of a stroke registry is associated with an improvement in stroke performance measures in a tertiary hospital in Mexico.

BACKGROUND: Stroke registries provide a simple way for improving patient care, and its use has been associated with a better adherence to the published guidelines. Few Latin American countries had established stroke registries. Our study is the first in Mexico to report the effects of implementing a stroke registry. To determine if the implementation of a systematized registry is associated with an improved adherence to the performance measures. METHODS: We compared prospective data (August 2008-November 2010) against historical controls (February 2005-July 2008). Our stroke registry (i-Registro Neurovascular) consists of a standardized clinical form that includes demographic and clinical variables (risk factors, medications, neuroimaging, etiology, acute and outpatient treatments, and neurologic scores [National Institutes of Health Stroke Scale and modified Rankin Scale]). We evaluated 9 performance measures suggested by the American Heart Association and the Joint Commission. RESULTS: We analyzed the data from 574 patients, 260 from the prospective phase and 314 from historical controls. No significant statistical differences in demographic characteristics or stroke risk factors were found. The implementation of the stroke registry was associated with a statistically significant (P < .05) improvement in almost all of the acute performance measures. The composite measure also showed an improvement form 52.6%-68.8% (P < .001). CONCLUSIONS: The implementation of a systematized registry significantly improved our clinical practice. This intervention is a low cost and readily achievable and a viable option for encouraging an increased report of guidelines adherence of other hospitals in Latin America.

Consistent spatial lesion-symptom patterns: A comprehensive analysis using triangulation in lesion-symptom mapping in a cohort of stroke patients.

INTRODUCTION: The relationship between brain lesions and stroke outcomes is crucial for advancing patient prognosis and developing effective therapies. Stroke is a leading cause of disability worldwide, and it is important to understand the neurological basis of its varied symptomatology. Lesion-symptom mapping (LSM) methods provide a means to identify brain areas that are strongly associated with specific symptoms. However, inner variations in LSM methods can yield different results. To address this, our study aimed to characterize the lesion-symptom mapping variability using three different LSM methods. Specifically, we sought to determine a lesion symptom core across LSM approaches enhancing the robustness of the analysis and removing potential spatial bias. MATERIAL & METHODS: A cohort consisting of 35 patients with either right- or left-sided middle cerebral artery strokes were enrolled and evaluated using the NIHSS at 24 h post-stroke. Anatomical T1w MRI scans were also obtained 24 h post-stroke. Lesion masks were segmented manually and three distinctive LSM methods were implemented: ROI correlation-based, univariate, and multivariate approaches. RESULTS: The results of the LSM analyses showed substantial spatial differences in the extension of each of the three lesion maps. However, upon overlaying all three lesion-symptom maps, a consistent lesion core emerged, corresponding to the territory associated with elevated NIHSS scores. This finding not only enhances the spatial accuracy of the lesion map but also underscores its clinical relevance. CONCLUSION: This study underscores the significance of exploring complementary LSM approaches to investigate the association between brain lesions and stroke outcomes. By utilizing multiple methods, we can increase the robustness of our results, effectively addressing and neutralizing potential spatial bias introduced by each individual method. Such an approach holds promise for enhancing our understanding of stroke pathophysiology and optimizing patient care strategies.

Coronary artery disease and risk of major vascular events after cerebral infarction.

BACKGROUND AND PURPOSE: The impact of asymptomatic coronary artery disease on the risk of major vascular events in patients with cerebral infarction is unknown. METHODS: Four hundred five patients with acute cerebral infarction underwent carotid, femoral artery, thoracic, and abdominal aorta ultrasound examination. Of 342 patients with no known coronary heart disease, 315 underwent coronary angiography. We evaluated the 2-year risk of major vascular events (myocardial infarction, resuscitation after cardiac arrest, hospitalization for unstable angina or heart failure, stroke, or major peripheral arterial disease events) in patients with known coronary heart disease (n=63), and in the no known coronary heart disease group (n=315) as a function of coronary angiographic status (n=315). RESULTS: At 2 years, the estimated risk of major vascular events was 11.0% (95% confidence interval, 8.2-14.7). According to baseline coronary angiography, estimated risk was 3.4% in patients with no coronary artery disease (n=120), 8.0% with asymptomatic coronary artery stenosis <50% (n=113), 16.2% with asymptomatic coronary artery stenosis ≥ 50% (n=81), and 24.1% with known coronary heart disease (P<0.0001). Using no coronary artery disease as the reference, the age- and sex-adjusted hazard ratio (95% confidence interval) of vascular events was 2.10 (0.63-6.96) for asymptomatic coronary stenosis <50%, 4.36 (1.35-14.12) for asymptomatic coronary stenosis ≥ 50%, and 6.86 (2.15-21.31) for known coronary artery disease. CONCLUSIONS: In patients with nonfatal cerebral infarction, presence and extent of asymptomatic stenoses on coronary angiography are strong predictors of major vascular events within 2 years.

Circulating markers of endothelial dysfunction and platelet activation in patients with severe symptomatic cerebral small vessel disease.

BACKGROUND: Small deep infarcts (SDI), also called lacunar infarcts, resulting from the occlusion of deep branch arteries, account for 25% of ischemic strokes. The physiopathology of the disease remains largely unknown. However, evidence about the role of endothelial dysfunction has emerged. Whereas chronic platelet activation is of major importance in acute thrombosis of large atherosclerotic arteries, its role in SDI remains unclear. Frequently associated risk factors are hypertension and diabetes mellitus. The aim of this study was to determine platelet and endothelial activation in patients with recent SDI in comparison to population-based control subjects matched for age, sex and vascular risk factors. METHODS: Platelet activation markers (activated glycoprotein IIb/IIIa, P-selectin and platelet microparticles), shear-induced platelet aggregation (SIPA) studied in the SIPAgreg device at 4,000 s(-1), endothelial activation markers [including von Willebrand factor (vWF) antigen and homocysteine] and high-sensitivity C-reactive protein (hsCRP) were measured in 74 consecutive patients with recent SDI, in whom detectable large artery atherosclerosis or cardiac embolism had been ruled out. Blood samples were collected 1 and 3 months after symptom onset. These factors were also measured in 74 population-based controls with no stroke history and matched for age, sex, hypertension and diabetes. RESULTS: One month after symptom onset, the patients had similar levels of platelet activation to matched controls (p > 0.40 for all comparisons). In contrast, endothelial activation parameters were increased in patients in comparison to controls (vWF: p = 0.002 and homocysteinemia/creatinemia: p = 0.025). The level of hsCRP was slightly increased in patients compared to controls (p = 0.059). At 3 months, we observed a significant decrease in vWF and hsCRP levels in patients (median change in vWF = 10%, p = 0.004; median change in hsCRP = 0.4 mg/l, p = 0.02). Homocysteine levels and all platelet parameters remained unchanged at this time compared to at 1 month. CONCLUSIONS: Our results confirm that chronic platelet activation, when compared to controls matched for age, sex and vascular risk factors, did not seem to play a central role in the pathophysiology of lacunar stroke. In contrast, we found markers of endothelial dysfunction, the role of which in the occurrence of lacunar infarction has still to be clarified in further studies.

Immunomodulatory Effects of Allium sativum L. and its Constituents against Viral Infections and Metabolic Diseases.

BACKGROUND: Allium sativum L., or garlic, is one of the most studied plants worldwide within the field of traditional medicine. Current interests lie in the potential use of garlic as a preventive measure and adjuvant treatment for viral infections, e.g., SARS-CoV-2. Even though it cannot be presented as a single treatment, its beneficial effects are beyond doubt. The World Health Organization has deemed it an essential part of any balanced diet with immunomodulatory properties. OBJECTIVE: The aim of the study was to review the literature on the effects of garlic compounds and preparations on immunomodulation and viral infection management, with emphasis on SARS-CoV- -2. METHODS: Exhaustive literature search has been carried out on electronic databases. CONCLUSION: Garlic is a fundamental part of a well-balanced diet which helps maintain general good health. The reported information regarding garlic's ability to beneficially modulate inflammation and the immune system is encouraging. Nonetheless, more efforts must be made to understand the actual medicinal properties and mechanisms of action of the compounds found in this plant to inhibit or diminish viral infections, particularly SARS-CoV-2. Based on our findings, we propose a series of innovative strategies to achieve such a challenge in the near future.

Knowledge of ischemic stroke risk factors and warning signs after a health education program by medical students.

BACKGROUND AND PURPOSE: A delay in recognizing early warning signs (WS) and risk factors (RF) of ischemic stroke causes a delay in treatment. We evaluated knowledge of RF and WS and the impact of an educational program by medical students. METHODS: We first surveyed individuals to determine knowledge of WS and RF. Then, after a 6-month education program, knowledge was reassessed. The questionnaire included sociodemographic and comorbidity data. A χ(2) and Mann-Whitney U test, as well as a multivariate logistic regression analysis to determine variables associated with knowledge, were used. RESULTS: We performed 329 baseline and 355 posteducation surveys. Initially, 57.1% mentioned at least 1 RF; this later increased to 65.9%. Mentions of obesity, dyslipidemias, hypertension, and diabetes mellitus increased significantly. With regard to WS, 37.6% mentioned at least 1, which increased to 48.1% who mentioned weakness in 1 limb, in half the body, severe headache, and altered vision. Educational level (OR, 2.53; 95% CI, 1.42-4.53; P=0.001), employment (OR, 1.72; 95% CI, 1.08-2.74; P=0.021), a family history of brain infarction (OR, 2.35; 95% CI, 1.35-4.11; P=0.02), obesity (OR, 1.63; 95% CI, 1.026-2.6; P=0.038), and having received information in the last 6 months (OR, 2.7; 95% CI, 1.51-4.83; P=0.001) were associated with a better understanding of RF and WS. CONCLUSIONS: The educational program was cost-effective and had a positive impact on knowledge of RF and WS of ischemic stroke. More education programs are required to improve knowledge of ischemic stroke.