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Wyniki wyszukiwania dla: VENTRICULAR FIBRILLATION
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ECG-based prediction of ventricular fibrillation by means of the PCA
PublikacjaA Sudden Cardiac Death (SCD) is a death resulting from cardiac failure with no significant symptoms earlier than one hour before occurrence. It is the cause of for approximately 400000 deaths per year in United States and millions of deaths worldwide. The proposed system, including two-stage algorithm and wearable diagnostic device allows for SCD risk estimation and continuous monitoring of high risk patients. A single channel...
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Hypertension and atrial fibrillation
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Prognosis after acute coronary syndrome in relation with ventricular–arterial coupling and left ventricular strain
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First-Phase Left Ventricular Ejection Fraction as an Early Sign of Left Ventricular Dysfunction in Patients with Stable Coronary Artery Disease
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Influence of Urea and Dimethyl Sulfoxide on K-Peptide Fibrillation
PublikacjaProtein fibrillation leads to formation of amyloids—linear aggregates that are hallmarks of many serious diseases, including Alzheimer’s and Parkinson’s diseases. In this work, we investigate the fibrillation of a short peptide (K-peptide) from the amyloidogenic core of hen egg white lysozyme in the presence of dimethyl sulfoxide or urea. During the studies, a variety of spectroscopic methods were used: fluorescence spectroscopy...
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Bleeding in anticoagulated patients with atrial fibrillation: practical considerations
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Bleeding in anticoagulated patients with atrial fibrillation: practical considerations
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The effect of the motor filters on earth fault current waveform in circuits with variable speed drives
PublikacjaIn circuits with variable speed drives distorted earth fault current flows. Earth fault current distortion influences the threshold of ventricular fibrillation. This paper presents earth fault current distortion in circuits with variable speed drives when motor filter is used. Two types of motor filter are analyzed. For every type of filter the effect of earth fault current distortion on ventricular fibrillation is evaluated.
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The effect of the motor filters on earth fault current waveform in circuits with variable speed drives
PublikacjaIn circuits with variable speed drives distorted earth fault current flows. Earth fault current distortion influences the threshold of ventricular fibrillation. This paper presents earth fault current distortion in circuits with variable speed drives when motor filter is used. Two types of motor filter are analyzed. For every type of filter the effect of earth fault current distortion on ventricular fibrillation is evaluated.
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Left Ventricular Mass: Correlation with Fatness, Hemodynamics and Renal Morphology
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Risperidone-induced Premature Ventricular Complexes in Psychosis: A Case Report
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Clinical anatomy of the spatial structure of the right ventricular outflow trac
PublikacjaBackground. The right ventricular outflow tract (RVOT) is located above the supraventricular crest and reaches the level of the pulmonary valve. Detailed knowledge of the RVOT spatial structure and its morphology is extremely important for cardiac invasive therapeutic procedures. Objectives. To examine the spatial structure of the RVOT using virtual models of the right ventricle (RV) interior obtained post mortem. Material and...
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Ambulatory blood pressure and long-term risk for atrial fibrillation
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Influence of stabilizing osmolytes on hen egg white lysozyme fibrillation
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Relationship between left ventricular global longitudinal strain, infarct size and left ventricular function in patients with acute myocardial infarction in a stem cell therapy study
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Rodzinny katecholaminergiczny częstoskórcz komorowy = Familial catecholaminergic Polymorphic Ventricular Tachycardia
PublikacjaCelem pracy jest przedstawienie katecholaminergicznego wielokształtnego częstoskurczu komorowego. Wielokształtny rodzinny katecholaminozależny częstoskórcz komorowy jest sporadycznie występującą arytmią komorową. W rodzinnej postaci PVT wskazana jest implantacja kardiowertera-defibrylatora celem prewencji nagłej śmierci sercowej oraz rozszerzona diagnostyka genetyczna.
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The accuracy of SpaceLabs 90207 in blood pressure monitoring in patients with atrial fibrillation
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Prevalence and characteristics of OSAFED syndrome in atrial fibrillation primary care patients
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Toughness augmentation by fibrillation and yielding in nanostructured blends with recycled polyurethane as a modifier
PublikacjaIn the present paper, we have carefully investigated the morphology and fracture mechanism of the recycled polyurethane (RPU) /epoxy blend system. The second phase (RPU) added to the epoxy resin has a positive effect on the overall mechanical properties. Interestingly, the recycled polymer has a remarkable effect on the fracture toughness of epoxy resin. The mechanism behind the fracture toughness improvement up on the addition...
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Antithrombotic therapy in patients with atrial fibrillation undergoing percutaneous coronary intervention
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Prevalence and covariates of electrocardiographic left ventricular hypertrophy in the Hypertension in the Very Elderly Trial
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Impact and pitfalls of scaling of left ventricular and atrial structure in population-based studies
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Challenges in oscillometric blood pressure measurement in atrial fibrillation: looking for practical solutions
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Fibrin Clot Permeability as a Predictor of Stroke and Bleeding in Anticoagulated Patients With Atrial Fibrillation
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LabVIEW-based intelligent system of protection against electric shock for photovoltaic installations
PublikacjaEvaluation of shock hazard in installations with photovoltaic sources of energy is more complicated than in a conventional low voltage system. In case of earth fault in photovoltaic generators, that are connected to the AC power public grid, a composite waveform of earth fault current in the installation may occur. For composite waveforms, the safety criteria should be modified. The paper considers the effect of the composite waveforms...
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Prevalence and distribution of left ventricular diastolic dysfunction in treated patients with long-lasting hypertension
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Heritability and other determinants of left ventricular diastolic function in the family-based population study
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Experimental Investigation of the Performance of an Innovative Implantable Left Ventricular Assist Device—Proof of Concept
PublikacjaThis paper presents the results of experimental performance of an innovative left ventricular assist device working on a specially designed test stand. The introduced invention is mainly applied for supporting the heart in patients with end-stage heart failure accompanied by mitral valve regurgitation and pulmonary hypertension. Moreover, the developed device has the form of a flexible balloon forming an intracardiac inert gas-filled...
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Clot Lysis Time Predicts Stroke During Anticoagulant Therapy in Patients with Atrial Fibrillation
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Flow Cytometric Assessment of Endothelial and Platelet Microparticles in Patients With Atrial Fibrillation Treated With Dabigatran
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Non-vitamin K antagonist oral anticoagulants (NOACs) in cancer patients with atrial fibrillation
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Prevalence of left ventricular diastolic dysfunction in European populations based on cross-validated diagnostic thresholds
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Doppler indexes of left ventricular systolic and diastolic function in relation to the arterial stiffness in a general population
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Ambulatory Blood Pressure Adds to Explaining Benefits of AT‐1 Receptor Blockade in the Treatment of Left Ventricular Hypertrophy
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Association between high arterial stiffness and left ventricular filling pressures in patients with acute myocardial infarction
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Left ventricular ejection fraction and aortic stiffness are independent predictors of neurological outcome in acute ischemic stroke
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Innovative Implantable Left Ventricular Assist Device—Performance under Various Resistances and Operating Frequency Conditions
PublikacjaThis paper presents the operation of an innovative left ventricular assist device under various resistances and operating frequencies. The operating principle of the device is based on pulsatile blood flow, which is forced by a suction–discharge device pumping helium into a set of intra-cardiac balloons. In this way, the ejection fraction of the left ventricle is increased, and the mitral valve is additionally occluded. What is...
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P1471Multimodality imaging of left ventricular function and volumes in patients with acute and chronic myocardial injury - Novel insights
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Electric shock hazard in circuits with variable-speed drives
PublikacjaThe conventional approach to electrical safety under fault condition in typical power systems considers earth fault currents of sinusoidal waveform and frequency of 50/60 Hz. However, in circuits with variable-speed drives, there is earth fault current flow with harmonics, and these harmonics influence the threshold of ventricular fibrillation. The paper presents earth fault current waveforms in circuits with variable-speed drives...
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Assessment of the mean time in the therapeutic INR range and the SAME-TT2R2 score in patients with atrial fibrillation and cognitive impairment
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Does GISSI-AF change the concept of using RAS inhibitors in the primary prevention of atrial fibrillation in hypertensive patients?
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Increased Levels of Platelets and Endothelial-Derived Microparticles in Patients With Non-Valvular Atrial Fibrillation During Rivaroxaban Therapy
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Assessment of Left Atrial Function in Patients with Paroxysmal, Persistent, and Permanent Atrial Fibrillation Using Two-Dimensional Strain.
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Tissue Doppler indexes of left ventricular systolic function in relation to the pulsatile and steady components of blood pressure in a general population
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Left ventricular function after takotsubo is not fully recovered in long-term follow-up: A speckle tracking echocardiography study
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System of protection against electric shock for circuits with power electronics converters
PublikacjaModern low voltage circuits are very often equipped with power electronics converters, therefore in these circuits non-sinusoidal earth currents (touch currents) may occur. For non-sinusoidal currents safety criteria should be modified. This paper presents these modified criteria and a computer system of protection against electric shock which can be implemented in circuits with power electronics converters. The system is based...
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Pre-existing arterial hypertension as a risk factor for early left ventricular systolic dysfunction following (R)-CHOP chemotherapy in patients with lymphoma
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Ischemic Versus Non-Ischemic (Neurogenic) Myocardial Contractility Impairment in Acute Coronary Syndromes: Prevalence and Impact on Left Ventricular Systolic Function Recovery
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P4018Reduced fibrin clot permeability is associated with an increased risk of both ischemic stroke and major bleeding in atrial fibrillation patients treated with vitamin K antagonists
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Computer System for Evaluation of Shock Hazard in Circuits with Non-sinusoidal Earth Currents
PublikacjaEffects of current on people are mainly considered for 50/60 Hz sinusoidal current and smooth direct current. However, modern low voltage circuits are very often equipped with power electronics converters – rectifiers, frequency converters, therefore non-sinusoidal earth currents (touch currents) occur. For non-sinusoidal currents safety criteria should be modified. This paper presents a computer system, based on LabVIEW environment,...