scholarly journals A Review of Risk Factors and Predictors for Hemorrhagic Transformation in Patients with Acute Ischemic Stroke

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Sneha E. Thomas ◽  
Noorine Plumber ◽  
Priyanka Venkatapathappa ◽  
Vasavi Gorantla

Acute ischemic strokes (AIS) and hemorrhagic strokes lead to disabling neuropsychiatric and cognitive deficits. A serious and fatal complication of AIS is the occurrence of hemorrhagic transformation (HT). HT is cerebral bleeding that occurs after an ischemic event in the infarcted areas. This review summarises how specific risk factors such as demographic factors like age, gender, and race/ethnicity, comorbidities including essential hypertension, atrial fibrillation, diabetes mellitus, congestive heart failure, and ischemic heart disease along with predictors like higher NIHSS score, larger infarction size, cardioembolic strokes, systolic blood pressure/pulse pressure variability, higher plasma glucose levels, and higher body temperature during ischemic event, lower low-density lipoprotein and total cholesterol, early ischemic changes on imaging modalities, and some rare causes make an individual more susceptible to developing HT. We also discuss few other risk factors such as the role of blood-brain barrier, increased arterial stiffness, and globulin levels in patients postreperfusion using thrombolysis and mechanical thrombectomy. In addition, we discuss the implications of dual antiplatelet therapy and the length of treatment in reference to the incidence of developing HT. Current research into inflammatory mediators and biomarkers such as Cyclooxygenase-2, matrix metalloproteinases, and soluble ST2 and their potential role as treatment options for HT is also briefly discussed. Finally, this review calls for more research into use of dual antiplatelet and the timing of antiplatelet and anticoagulant use in reference to hemorrhagic transformation.

2019 ◽  
Vol 26 (3-4) ◽  
pp. 30-34
Author(s):  
Al Rasyid ◽  
Salim Harris ◽  
Mohammad Kurniawan ◽  
Taufik Mesiano ◽  
Rakhmad Hidayat

Background: To assess the role of risk factors of metabolic syndrome on blood viscosity and the prognosis of acute ischemic stroke in Indonesia based on the National Institute of Health Stroke Scale (NIHSS) and modified Rankin Scale (mRS). Methods: This study included 135 patients with acute ischemic stroke. Patients underwent measurements of viscosity and risk factor assessment. Analysis was performed to assess the role of these risk factors for blood viscosity and outcomes of acute ischemic stroke with NIHSS and mRS as indicators. NIHSS was assessed at <3 days after onset and 7 days after onset, while mRS was assessed 1 month post treatment. Bivariate analysis was performed using chi-square test, and variables with p < 0.25 were further analyzed in multivariate analysis using logistic regression. Results: Factors affecting blood viscosity are fibrinogen, low-density lipoprotein (LDL), and hematocrit. Factors affecting NIHSS and mRS are fibrinogen and LDL. Conclusion: Fibrinogen and LDL affect the viscosity of blood and outcomes in acute ischemic stroke patients, so it is necessary to treat in the primary and secondary prevention of ischemic stroke.


Author(s):  
Д.П. Покусаева ◽  
И.А. Аниховская ◽  
Л.А. Коробкова ◽  
М.Ю. Яковлев

В последние годы большое внимание уделяется роли микробиоты в атерогенезе с позиций воспалительной теории. На основании экспериментальных и клинических данных была сформулирована эндотоксиновая теория атеросклероза. Подтверждением важной роли кишечного липополисахарида в атерогенезе является возрастная динамика показателей системной эндотоксинеми и липидного профиля. Цель исследования - выявление взаимосвязи между показателями системной эндотоксинемии и факторами риска атеросклероза, в аспекте возрастных и гендерных различий. Методика. Обследовано 113 пациентов среднего возраста. Все пациенты прошли оценку факторов риска развития атеросклероза по шкале SCORE. Пациенты были отнесены к средней группе риска (до 5%), оценивали себя как «здоровые», жалоб на момент обследования не предъявляли. Индекс массы тела был до 30 кг/м2. Определялись показатели липидного профиля (анализатор «StatFax 3300», США, реактивы «Analyticon», Германия): уровень общего холестерина, липопротеинов высокой плотности и уровень триглицеридов, рассчитывался индекс атерогенности и концентрация липопротеинов низкой плотности. Определялись параметры системной эндотоксинемии: концентрации липополисахарида (микро-ЛАЛ-тест), уровень антител к гидрофобной и гидрофильной частям молекулы ЛПС методом «СОИС-ИФА». Результаты. Выявлена прямая значимая корреляция концентрации общего холестерина, липопротеинов низкой плотности и липопротеинов высокой плотности в зависимости от возраста. При построении регрессионной модели зависимости показателей системной эндотоксинемии от пола и возраста пациентов не выявлено. При визуальной оценке графиков обращает внимание наличие у женщин тенденции к возрастному повышению уровня липополисахарида и снижению концентрации антител к гидрофильной части молекулы липополисахарида. Обнаружены гендерные различия показателей липидного профиля и уровня липополисахарида. Заключение. Статистически значимая возрастная динамика показателей липидного профиля при тенденции к нарастанию уровня липополисахарида, а также снижение концентрации антител к гидрофильной части молекула липополисахарида, имеющее определённые гендерные различия, свидетельствует о целесообразности продолжения исследований с увеличением числа обследованных в расширенном возрастном диапазоне. Atherosclerosis is a polyetiologic disease. In recent years, much attention has been paid to the role of the microbiota in atherogenesis from the perspective of inflammatory theory. Based on experimental and clinical data, the endotoxin theory of atherosclerosis was formulated. Confirmation of the important role of intestinal lipopolysaccharide in atherogenesis is the age dynamics of systemic endotoxemia parametrs and lipid profile. The goal of our study was to identify the relationship between the indicators of systemic endotoxemia and the generally accepted risk factors for atherosclerosis, especially the age dynamics and the influence of gender. Methods. We examined 113 patients middle age. All patients were assessed for risk factors for atherosclerosis according to the SCORE scale. Patients were assigned to the average risk group (up to 5%), rated themselves as “healthy”, did not present any complaints at the time of the survey. The body mass index was up to 30 kg/m2. Indicators of the lipid profile were determined («StatFax» 3300 analyzer, USA, «Analyticon» reagents, Germany): the level of total cholesterol, high-density lipoprotein and triglyceride levels, the atherogenic index and the concentration of low-density lipoprotein were calculated. The parameters of systemic endotoxemia were determined: the concentration of lipopolysaccharide using a micro-LAL test, the level of antibodies to the hydrophobic and hydrophilic parts of the lipopolysaccharide molecule using the “SOIS-ELISA” method. Results. A direct significant correlation was found between the concentration of total cholesterol, low-density lipoprotein and high-density lipoprotein, depending on age. When constructing a regression model of the age dynamics, the concentrations of lipopolysaccharides, antibodies to the hydrophobic and hydrophilic parts of the lipopolysaccharide molecule were not detected (p> 0.05). When adjusted for gender, the age dynamics of systemic endotoxemia was also not observed. When visually assessing the graphs, attention is drawn to the fact that women have an age-related tendency to increase the level of lipopolysaccharide and a decrease in the concentration of antibodies to the hydrophilic part of the lipopolysaccharide molecule. In addition, gender differences in lipid profile and lipopolysaccharide levels were found. Conclusion. The significant age-related dynamics of the lipid profile in the presence of a tendency to an increase in the level of lipopolysaccharide and a decrease in the concentration of antibodies to the hydrophilic part of the lipopolysaccharide molecule, which has certain gender differences, revealed the necessity and feasibility of continuing research with an increase in the number of subjects and in the extended age range.


SURG Journal ◽  
2008 ◽  
Vol 1 (2) ◽  
pp. 82-90
Author(s):  
Cristina Cuda

The metabolic consequences of obesity have made this highly prevalent condition one of the most common risk factors for type 2 diabetes, hypertension and atherosclerosis. Simultaneous occurrence of these conditions can be explained through the manifestations of metabolic syndrome [MetS]. Clinical indication of MetS is characterized by a clustering of risk factors for complex chronic diseases which all feature metabolic deterioration as a common component. Diagnosis of MetS can be made if a patient exhibits three of the identified risk factors, some of which include: elevated waist circumference, elevated triglycerides, low high density lipoprotein levels, hypertension and elevated blood glucose. The progression from obesity to MetS involves an alteration in body metabolism mediated by cytokines- signalling molecules that coordinate the inflammatory response. Increased visceral adipose tissue contributes to augmented secretion of pro-inflammatory cytokines which can activate several transcription factors, including NF-κB, which promote these inflammatory conditions and lead to increased oxidative stress. Exacerbation of the condition then ensues as oxidative stress results in oxidized low density lipoprotein, dyslipidemia, insulin resistance, hypertension and atherogenesis. This review will not only focus on the role of inflammation in the manifestations of MetS, but also outlines some lifestyle and nutritional treatments that can be used to treat the condition and reduce the risk of chronic disease.


2017 ◽  
Vol 95 (8) ◽  
pp. 735-741
Author(s):  
Evgeniya V. Sevostyanova ◽  
Yu. A. Nikolaev ◽  
I. M. Mitrofanov ◽  
V. Ya. Polyakov ◽  
N. A. Dolgova

Purpose. To study the dependence of the frequency of occurrence and the values of indicators of basic risk factors for chronic non-communicable diseases on the degree of transnosological polymorbidity in patients of a clinic of general therapeutic profile for the period from 2003 to 2013. Material and methods. The analysis of 5019 medical records (2501 men, 2518 women) treated in the clinic of RIECM, Novosibirsk, was carried out. Transnosological polymorbidity was evaluated from the average number of nosologies in accordance with the International Classification of Diseases, 10th revision (ICD-10). The following risk factors were assessed based on clinical and laboratory tests: high blood pressure, increased concentration of total cholesterol, low density lipoprotein cholesterol, triglycerides, glucose, uric acid, decreased concentration of high density lipoprotein cholesterol, obesity. Results. The dependence of the values of indicators and frequency of occurrence of chronic non-communicable diseases risk factors on the degree of polymorbidity, taking into account gender differences, was studied. In both men and women, increased transnosological polymorbidity index was associated with the growth of indicators of main non-communicable risk factors: systolic blood pressure, diastolic blood pressure, glucose, low density lipoprotein cholesterol, uric acid in the blood. In men, a more pronounced increase with growing polymorbidity index was especially noticeable in the body mass index and blood glucose; in women in blood glucose and triglyceride levels. Conclusion. The study demonstrated the important role of risk factors of chronic non-communicable diseases that collectively represent clinical manifestations of metabolic syndrome in the development of polymorbidity in patients of therapeutic profile. These findings indicate the need of differential prevention and treatment of patients with polymorbidity together with mandatory identification and correction of modifiable risk factors of chronic non-communicable diseases.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Amra Jujić ◽  
J. Korduner ◽  
H. Holm ◽  
G. Engström ◽  
E. Bachus ◽  
...  

AbstractObesity associates with reduced life expectancy, type 2 diabetes, hypertension and cardiovascular disease, and is characterized by chronic inflammation. Phosphorylcholine (PC) is an epitope on oxidized low-density lipoprotein, dead cells and some microorganisms. Antibodies against PC (anti-PC) have anti-inflammatory properties. Here, we explored the role of anti-PC in hospitalized versus non-hospitalized obese. One-hundred-and-twenty-eight obese (BMI ≥ 30 kg/m2) individuals (59.8 (± 5.5) years, 53.9% women) from the Malmö Diet and Cancer Cardiovascular Cohort were examined and IgM, IgG1 and IgG2 anti-PC were analyzed by ELISA. Individuals with at least one recorded history of hospitalization prior to study baseline were considered hospitalized obese (HO). Associations between IgM, IgG1 and IgG2 anti-PC and HO (n = 32)/non-hospitalized obese (NHO) (n = 96), but also with metabolic syndrome and diabetes were analysed using logistic regressions. Both IgM and IgG1 anti-PC were inversely associated with HO, also after controlling for age and sex. When further adjusted for waist circumference, systolic blood pressure, glucose levels and smoking status, only IgG1 anti-PC remained significantly associated with HO. In multivariate models, each 1 standard deviation of increment in anti-PC IgG1 levels was inversely associated with prevalence of HO (odds ratio 0.57; CI 95% 0.33–0.98; p = 0.044). IgG2 anti-PC did not show any associations with HO. Low levels of IgM and IgG1 anti-PC are associated with higher risk of being a HO individual independent of sex and age, IgG1 anti-PC also independently of diabetes and metabolic syndrome. The anti-inflammatory properties of these antibodies may be related to inflammation in obesity and its complications.


1997 ◽  
Vol 77 (04) ◽  
pp. 710-717 ◽  
Author(s):  
Marieke E van der Kaaden ◽  
Dingeman C Rijken ◽  
J Kar Kruijt ◽  
Theo J C van Berkel ◽  
Johan Kuiper

SummaryUrokinase-type plasminogen activator (u-PA) is used as a thrombolytic agent in the treatment of acute myocardial infarction. In vitro, recombinant single-chain u-PA (rscu-PA) expressed in E.coli is recognized by the Low-Density Lipoprotein Receptor-related Protein (LRP) on rat parenchymal liver cells. In this study we investigated the role of LRP in the liver uptake and plasma clearance of rscu-PA in rats. A preinjection of the LRP inhibitor GST-RAP reduced the maximal liver uptake of 125I-rscu-PA at 5 min after injection from 50 to 30% of the injected dose and decreased the clearance of rscu-PA from 2.37 ml/min to 1.58 ml/min. Parenchymal, Kupffer and endothelial cells were responsible for 40, 50 and 10% of the liver uptake, respectively. The reduction in liver uptake of rscu-PA by the preinjection of GST-RAP was caused by a 91 % and 62% reduction in the uptake by parenchymal and Kupffer cells, respectively. In order to investigate the part of rscu-PA that accounted for the interaction with LRP, experiments were performed with a mutant of rscu-PA lacking residues 11-135 (= deltal25- rscu-PA). Deletion of residues 11-135 resulted in a 80% reduction in liver uptake and a 2.4 times slower clearance (0.97 ml/min). The parenchymal, Kupffer and endothelial cells were responsible for respectively 60, 33 and 7% of the liver uptake of 125I-deltal25-rscu-PA. Preinjection of GST-RAP completely reduced the liver uptake of delta 125-rscu-PA and reduced its clearance to 0.79 ml/min. Treatment of isolated Kupffer cells with PI-PLC reduced the binding of rscu-PA by 40%, suggesting the involvement of the urokinase-type Plasminogen Activator Receptor (u-PAR) in the recognition of rscu-PA. Our results demonstrate that in vivo LRP is responsible for more than 90% of the parenchymal liver cell mediated uptake of rscu-PA and for 60% of the Kupffer cell interaction. It is also suggested that u-PAR is involved in the Kupffer cell recognition of rscu-PA.


Author(s):  
В.В. Шерстнев ◽  
М.А. Грудень ◽  
В.П. Карлина ◽  
В.М. Рыжов ◽  
А.В. Кузнецова ◽  
...  

Цель - исследование взаимосвязи факторов риска сердечно-сосудистых заболеваний и развития предгипертонии. Методика. Проведен сравнительный и корреляционный анализы показателей модифицируемых и немодифицируемых факторов риска сердечно-сосудистых заболеваний у обследованных лиц в возрасте 30-60 лет с «оптимальным» артериальным давлением, (n = 63, АД <120/80 мм рт.ст.) и лиц с предгипертонией (n = 52, АД = 120-139/80-89 мм рт.ст.). Результаты. Показано, что лица с предгипертонией по сравнению с группой лиц, имеющих «оптимальное» артериальное давление характеризуются статистически значимо повышенным содержанием холестерина и холестерина липопротеидов низкой плотности, интеллектуальным характером трудовой деятельности, а также значимыми сочетаниями факторов риска: повышенный уровень холестерина липопротеидов низкой плотности с интеллектуальным характером трудовой деятельности; повышенное содержание креатинина с уровнем триглициридов; наследственная отягощенность по заболеваниям почек и интеллектуальным характером трудовой деятельности; наследственная отягощенность по сахарному диабету и гипертрофия левого желудочка сердца. У лиц с предгипертонией документированы перестройки структуры взаимосвязи (количество, направленность и сила корреляций) между показателями факторов риска в сравнении с лицами, имеющими «оптимальное» артериальное давление. Заключение. Выявленные особенности взаимосвязей факторов риска сердечно-сосудистых заболеваний при предгипертонии рассматриваются как проявление начальной стадии дизрегуляционной патологии и нарушения регуляции физиологических систем поддержания оптимального уровня артериального давления. The aim of the study was to investigate the relationship between risk factors for cardiovascular disease and development of prehypertension. Methods. Comparative and correlation analyses of modifiable and non-modifiable risk factors for cardiovascular disease were performed in subjects aged 30-60 with «optimal» blood pressure (n = 63, BP <120/80 mm Hg) and prehypertension (n = 52, BP = 120-139 / 80-89 mm Hg). Results. The group with prehypertension compared with the «optimal» blood pressure group had significantly increased serum levels of low-density lipoprotein (LDL) cholesterol and high-density lipoprotein (HDL) cholesterol, sedentary/intellectual type of occupation, and significant combinations of risk factors. The risk factor combinations included an increased level of LDL cholesterol and a sedentary/intellectual occupation; increased serum levels of creatinine and triglycerides; hereditary burden of kidney disease and a sedentary/intellectual occupation; hereditary burden of diabetes mellitus and cardiac left ventricular hypotrophy. In subjects with prehypertension compared to subjects with «optimal» blood pressure, changes in correlations (correlation number, direction, and strength) between parameters of risk factors were documented. Conclusion. The features of interrelationships between risk factors for cardiovascular disease observed in prehypertension are considered a manifestation of early dysregulation pathology and disordered regulation of physiological systems, which maintain optimal blood pressure.


2020 ◽  
Vol 27 (7) ◽  
pp. 1041-1051 ◽  
Author(s):  
Michael Spartalis ◽  
Eleftherios Spartalis ◽  
Antonios Athanasiou ◽  
Stavroula A. Paschou ◽  
Christos Kontogiannis ◽  
...  

Atherosclerotic disease is still one of the leading causes of mortality. Atherosclerosis is a complex progressive and systematic artery disease that involves the intima of the large and middle artery vessels. The inflammation has a key role in the pathophysiological process of the disease and the infiltration of the intima from monocytes, macrophages and T-lymphocytes combined with endothelial dysfunction and accumulated oxidized low-density lipoprotein (LDL) are the main findings of atherogenesis. The development of atherosclerosis involves multiple genetic and environmental factors. Although a large number of genes, genetic polymorphisms, and susceptible loci have been identified in chromosomal regions associated with atherosclerosis, it is the epigenetic process that regulates the chromosomal organization and genetic expression that plays a critical role in the pathogenesis of atherosclerosis. Despite the positive progress made in understanding the pathogenesis of atherosclerosis, the knowledge about the disease remains scarce.


2019 ◽  
Vol 17 (3) ◽  
pp. 270-277 ◽  
Author(s):  
Thomas F. Whayne

The non-traditional cardiovascular (CV) risk factors that appear to be of most clinical interest include: apolipoprotein A (ApoA), apolipoprotein B (ApoB), high-sensitivity C-Reactive protein (hsCRP), homocysteine, interleukin 1 (IL1), lipoprotein (a) [Lp(a)], the density of low-density lipoprotein (LDL) particles, the LDL particle number, tissue/tumor necrosis factor-α (TNF-α) and uric acid. These non-traditional risk factors may be of value in adding further confirmation and attention to suspected significant CV risk. They can also provide a better understanding of current concepts of atherogenesis (e.g. various potential mechanisms associated with inflammation) as an etiology and in guiding current plus future therapies. In the mid-20th century, atherosclerosis and CV disease were considered mechanistic occurrences with essentially no attention to possible metabolic and molecular etiologies. Therefore, the only treatments then centered around mainly surgical procedures to try to improve blood flow, first with peripheral arterial disease (PAD) and later coronary artery disease (CAD). Now, failure to treat CV risk factors, especially where there is good evidence-based medicine, as in the case of statins for high CV risk patients, is considered medical negligence. Nevertheless, many problems remain to be solved regarding atherosclerosis prevention and treatment.


1981 ◽  
Author(s):  
W B Kannel

Coronary heart disease is a common, highly lethal, disease which frequently attacks without warning and too often presents with sudden death as the first symptom. Chances of an American male developing CHD before age 60 are one in five.Most angina, infarctions and sudden deaths represent medical failures which should have been forecasted and prevented. About 30% of first MI's will shortly develop angina and experience a per annum death rate, half of which will be sudden deaths. Reinfarctions will occur at 6% per year and half the recurrences will be fatal.No major innovations are needed to identify coronary candidates or to establish their risk from the joint effect of known risk factors. However, all have much to learn about motivating changes in behavior required to control the major risk factors such as cigarette smoking, faulty diet, overweight, sedentary living, abnormal lipids, hypertension and impaired glucose tolerance.Low density lipoprotein cholesterol promotes atherogenesis whereas HDL-cholesterol is protective, and the net effect is judged by their ratio. Hypertension, systolic or diastolic, labile or fixed, at any age in either sex is a powerful contributor to CHD. The impact of diabetes is greater for women, diminishes with age and varies depending on coexisting risk factors.Optimal risk evaluation requires quantitative combination of risk factors so as to include persons with multiple marginal risk factor abnormalities who are at high risk.


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