Search results for "Blood"

Cerebral Blood Flow Regulation Under the Conditions of Arterial Hypoxia

1978

Pronounced arterial hypoxia induces a decrease of cerebrovascular resistance and an increase of total and regional cerebral blood flow. Under the conditions of normal arterial blood pressure and normal acid base status, the changes of both parameters commence when the oxygen tension in the arterial blood decreases below approximately 50 mm Hg. At the same time, the oxygen tension in the cerebral venous blood reaches values below approximately 28 mm Hg. Different authors [23, 28, 30, 31, 33] reported that cerebral blood flow responses to PaO2 decrease are threshold at these oxygen tensions. The threshold oxygen tension of cerebral venous blood was accorded a special significance because Noel…

Potential Involvement of Impaired Venous Outflow from the Brain in Neurodegeneration: Lessons Learned from the Research on Chronic Cerebrospinal Veno…

2019

About 10 years ago, the so-called chronic cerebrospinal venous insufficiency syndrome was discovered. This clinical entity, which is associated with extracranial venous abnormalities that impair venous outflow from the brain, was initially found exclusively in multiple sclerosis patients. Currently, we know that such venous lesions can also be revealed in other neurological pathologies, including Alzheimer’s and Parkinson’s diseases. Although direct causative role of chronic cerebrospinal venous insufficiency in these neurological diseases still remains elusive, in this paper, we suggest that perhaps an abnormal venous drainage of the brain affects functioning of the glymphatic system, whi…

Dressings and Securement Devices of Peripheral Arterial Catheters in Intensive Care Units and Operating Theaters

2020

Background: Hemodynamic monitoring, implemented by the placement of peripheral arterial catheters (PACs), is a characterizing aspect of the intensive care units. Peripheral arterial catheters can continually detect blood pressure and quickly conduct blood sampling. The use of PACs is generally considered safe, without serious complications. Currently, only 25% of the implanted catheters are actually subject to complications, including accidental removal, dislocation, occlusion, and infection. All of these complications arise from inadequate catheter stabilization at the level of the skin. This study aimed to summarize and describe the effectiveness and characteristics of dressings and secur…

UP TO WHAT AGE PROPOSE MASS SCREENING FOR COLORECTAL CANCER BY FAECAL OCCULT BLOOD TEST? ANALYSIS OF A COHORT IN A WELL-DEFINED POPULATION

2019

Prevalencia de fibrilación auricular en la población española de 60 o más años de edad. Estudio PREV-ICTUS

2007

Introduction and objectives. The aims of this study were to determine the prevalence of atrial fibrillation in individuals aged 60 years or more in Spain using a random sample of the population and to identify associated factors. Methods. An analysis of the PREV-ICTUS study, a randomized cross-sectional population-based study of individuals aged 60 years or more, was carried out. Data on demographic variables, cardiovascular risk factors, and cardiovascular disease were obtained from medical records. The diagnosis of atrial fibrillation was based on the patient’s medical history and an electrocardiogram performed during the study. Results. In the 7108 individuals studied (mean age, 71.9 [7.…

2018

Background: Change in the prevalence of raised blood pressure could be due to both shifts in the entire distribution of blood pressure (representing the combined effects of public health interventions and secular trends) and changes in its high-blood-pressure tail (representing successful clinical interventions to control blood pressure in the hypertensive population). Our aim was to quantify the contributions of these two phenomena to the worldwide trends in the prevalence of raised blood pressure. Methods: We pooled 1018 population-based studies with blood pressure measurements on 88.6 million participants from 1985 to 2016. We first calculated mean systolic blood pressure (SBP), mean dia…

Characteristics of Cardiovascular Risk Factors and Their Correlation with the Sex and Age of Patients in the Latvian Population

2009

Characteristics of Cardiovascular Risk Factors and Their Correlation with the Sex and Age of Patients in the Latvian Population Various cardiovascular risk factors (RFs) were determined in 773 out-patients (mean age 55.8 ± 14.5 years). Male individuals had a larger waist circumference (WC) than did female patients (99.1 ± 13.6 cm vs 93.3 ± 15.2 cm), higher diastolic blood pressure (DBP) (83.6 ± 9.6 mmHg vs 81.8 ± 9.6 mmHg), and higher levels of blood glucose (5.73 ± 1.4 mmol/L vs 5.49 ± 1.3 mmol/L) and triglycerides (TG) (1.89 ± 1.3 mmol/L vs 1.60 ± 1.0 mmol/L), but lower levels of total cholesterol (TC) (5.54 ± 1.2 mmol/L vs 5.79 ± 1.2 mmol/L) and high-density lipoprotein cholesterol (HDL-…

Calidad de vida relacionada con la salud en personas con hipertensión y diabetes mellitus

2021

Objetivo: Determinar los factores sociodemográficos y clínicos asociados a la Calidad de Vida relacionada con la salud (CVRS) en personas con hipertensión arterial y diabetes mellitus tipo 2.Métodos: Estudio analítico de corte transversal en una muestra de 184 usuarios de un programa de control de riesgo cardiovascular en Bucaramanga (Colombia). Se utilizó el instrumento EQ-5D-3L para evaluar la calidad de vida. Un modelo de regresión lineal múltiple fue llevado a cabo usando como desenlace la Escala Visual Análoga y como posibles predictores las dimensiones del EQ-5D, ajustando por edad, sexo, grupo de intervención (variable instrumental) y variables clínicas como la patología de base y el…

Depression and its correlation with the risk of cardiovascular mortality in primary care population in Latvia

2016

IntroductionDepression is one of several preventable causes of disability worldwide, with coronary heart disease (CHD) being the largest cause of disability. Depression has been confirmed as a risk factor for CHD.ObjectivesFew studies tried to find an interrelation between depression and a risk of cardiovascular mortality according to systematic coronary risk evaluation (SCORE) chart.AimsThe aim of study was to examine the correlation of depression with the risk of cardiovascular mortality (SCORE).MethodsStudy was conducted in 2015 within the framework of National Research Programme BIOMEDICINE. All patients aged 18 and older at 24 primary care facilities were interviewed with a sociodemogr…

Diabetes technologies in people with type 1 diabetes mellitus and disordered eating: A systematic review on continuous subcutaneous insulin infusion,…

2021

Aims In this systematic review, we aimed (1) to identify and describe research investigating the use of advanced diabetes technologies (continuous subcutaneous insulin infusion, CSII; continuous glucose monitoring, CGM; automated insulin delivery, AID) in people with type 1 diabetes (T1DM) and disordered eating and (2) to discuss potential (dis)advantages of diabetes technology use in this population, derived from previous research. Methods We conducted a systematic literature search in two electronic databases for English language articles published between 2000 and 2020 addressing eating disorders and/or dysfunctional eating behaviours and diabetes technology use in children, adolescents …