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Rozprawy doktorskie na temat „Arterial pulse”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 13 lutego 2022

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1

Millasseau, Sandrine. "Arterial pulse wave analysis." Thesis, King's College London (University of London), 2003. https://kclpure.kcl.ac.uk/portal/en/theses/arterial-pulse-wave-analysis(5002b38b-53de-4c76-af89-db21c08fea68).html.

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Fok, Henry Wing Hang. "Ventricular-vascular coupling and central arterial pulse pressure." Thesis, King's College London (University of London), 2015. http://kclpure.kcl.ac.uk/portal/en/theses/ventricularvascular-coupling-and-central-arterial-pulse-pressure(c9b79392-15e3-4c43-b940-10bb9cbe35f7).html.

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Central pulse pressure (cPP), a product of ventricular-arterial interaction, is an important determinant of cardiovascular outcomes in hypertension. The aim of this thesis is to advance the understanding of pulsatile haemodynamics and to explore mechanisms that may selectively reduce cPP. The conventional view is that cPP comprises a component determined by the direct interaction of myocardial contraction with the impedance of the proximal arterial tree (closely related to pulse wave velocity, PWV) and a component ‘augmentation pressure’ generated by pressure wave reflections from muscular con

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3

de, Kock J. P. "Pulse oximetry : theoretical and experimental models." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302928.

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Ehrlich, Elizabeth R. "Sex Differences in Arterial Destiffening with Weight Loss." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/43707.

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Given the current obesity epidemic in tandem with the aging US population, it is imperative to identify methods for reducing cardiovascular disease (CVD) risk that will be efficacious for both sexes. Arterial stiffness (AS) is an independent risk factor for a first cardiovascular event that increases with advancing age and obesity. Previous studies have found that modest weight loss (WL) of 5 to 10 percent successfully reduces AS and other risk factors for CVD. However, it remains unclear whether WL via caloric restriction reduces AS similarly among sexes. We tested the hypothesis that WL vi

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5

Smithers, Breana Gray. "Evaluating the Pulse Sensor as a Low-Cost and Portable Measurement of Blood Pulse Waveform." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849682/.

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This study was aimed at determining whether the digital volume pulse waveform using the Pulse Sensor can be used to extract features related to arterial compliance. The Pulse Sensor, a low-cost photoplethysmograph, measures green light reflection in the finger and generates output, which is indicative of blood flow and can be read by the low-cost Arduino UNO™. The Pulse Sensor code was modified to increase the sampling frequency and to capture the data in a file, which is subsequently used for waveform analysis using programs written in the R system. Waveforms were obtained using the Pulse Sen

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6

Eck, Vinzenz Gregor. "Arterial Flow and Pulse Wave Propagation in one dimensional Arterial Networks with Statistically Distributed Model Parameters." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for konstruksjonsteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19311.

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Parametric uncertainty in blood flow simulations of cardiovascular systems has received little attention, although methods for blood flow simulation has been subject of many studies. This work presents the implementation and assessment of a method for one dimensional flow and pressure wave simulations in arterial networks with statistically distributed model parameters. The pressure and flow waves in the arterial system are characterized by means of cross-sectionally averaged 1D governing equations for mass and momentum, discretized with a MacCormack scheme (explicit and second order in time a

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7

Payne, Rupert Alistair. "Pulse transit time and the pulse wave contour as measured by photoplethysmography : the effect of drugs and exercise." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/5950.

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Photoplethysmography (PPG) is a simple means of measuring the pulse wave in humans, exploitable for the purposes of timing the arrival of the pulse at a particular point in the arterial tree, and for pulse contour analysis. This thesis describes a methodology for measuring arterial pulse transit time (PTT) from cardiac ejection to pulse arrival at the finger. It describes the effect on PTT of drug and exercise induced changes in BP. The nature of the relationship between the PPG and arterial pressure is also examined, and the PTT technique extended to assessment of conduit vessel pulse wave ve

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8

Wenngren, Wilhelm Sven Ingemar. "Local pulse wave velocity detection over an arterial segment using photoplethysmography." University of British Columbia, 2017. http://hdl.handle.net/2429/63867.

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The goal of this thesis is to determine the validity of using photoplethysmography (the detection of changes of blood volume using light) to measure pulse wave velocity as part of a continuous and non-disruptive blood pressure monitor. There has been a limited advancement over the years in technologies to monitor personal blood pressure, which have rendered at-home monitoring still relatively intrusive. The main method for at-home blood pressure monitoring is the use of an inflating cuff that obstructs the artery to detect pressure. This system suffers from inherit drawbacks, such as limitatio

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9

Hast, J. (Jukka). "Self-mixing interferometry and its applications in noninvasive pulse detection." Doctoral thesis, University of Oulu, 2003. http://urn.fi/urn:isbn:951426973X.

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Abstract This thesis describes the laser Doppler technique based on a self-mixing effect in a diode laser to noninvasive cardiovascular pulse detection in a human wrist above the radial artery. The main applications of self-mixing interferometry described in this thesis in addition to pulse detection are arterial pulse shape and autonomic regulation measurements. The elastic properties of the arterial wall are evaluated and compared to pulse wave velocity variation at different pressure conditions inside the radial artery. The main advantages of self-mixing interferometry compared to conventi

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10

Zhang, Ruizhi. "ARTERIAL WAVEFORM MEASUREMENT USING A PIEZOELECTRIC SENSOR." VCU Scholars Compass, 2010. http://scholarscompass.vcu.edu/etd/126.

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This study aims to develop a new method to monitor peripheral arterial pulse using a PVDF piezoelectric sensor. After comparing different locations of sensor placement, a specific sensor wrap for the finger was developed. Its composition, size, and location make it inexpensive and very convenient to use. In order to monitor the effectiveness of the sensor at producing a reliable pulse waveform, a monitoring system, including the PZT sensor, ECG, pulse-oximeter, respiratory sensor, and accelerometer was setup. Signal analysis from the system helped discover that the PZT waveform is relative to

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11

Hall, Ian Robert. "An assessment of arterial stiffness and endothelial function using pulse wave analysis." Thesis, Cardiff University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423042.

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12

Chan, Gregory Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Early detection of blood loss using a noninvasive finger photoplethysmographic pulse oximetry waveform." Publisher:University of New South Wales. Electrical Engineering & Telecommunications, 2008. http://handle.unsw.edu.au/1959.4/42593.

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Delayed control of haemorrhage or blood loss has been recognised as a major contributor to preventable trauma deaths, but early detection of internal bleeding is difficult due to unreliability of heart rate (HR) and blood pressure (BP) as markers of volume status. This thesis explores a novel method of early blood loss detection using a noninvasive finger photoplethysmographic (PPG) pulse oximetry waveform that is normally utilised in pulse oximeters for estimating arterial oxygen saturation. Graded head-up tilt (n = 13) and blood donation (n = 43) in human volunteers were selected as experim

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13

Walsh, Andrew Michael Graduate school of biomedical engineering UNSW. "Application of supervised and unsupervised learning to analysis of the arterial pressure pulse." Awarded by:University of New South Wales. Graduate school of biomedical engineering, 2006. http://handle.unsw.edu.au/1959.4/24841.

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This thesis presents an investigation of statistical analytical methods applied to the analysis of the shape of the arterial pressure waveform. The arterial pulse is analysed by a selection of both supervised and unsupervised methods of learning. Supervised learning methods are generally better known as regression. Unsupervised learning methods seek patterns in data without the specification of a target variable. The theoretical relationship between arterial pressure and wave shape is first investigated by study of a transmission line model of the arterial tree. A meta-database of pulse wavefo

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14

Teren, Andrej, Frank Beutner, Kerstin Wirkner, Markus Löffler, and Markus Scholz. "Relationship between determinants of arterial stiffness assessed by diastolic and suprasystolic pulse oscillometry." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-205538.

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Pulse wave velocity (PWV) and augmentation index (AI) are independent predictors of cardiovascular health. However, the comparability of multiple oscillometric modalities currently available for their assessment was not studied in detail. In the present study, we aimed to evaluate the relationship between indices of arterial stiffness assessed by diastolic and suprasystolic oscillometry. In total, 56 volunteers from the general population (23 males; median age 70 years [interquartile range: 65–72 years]) were recruited into observational feasibility study to evaluate the carotid-femoral/aortic

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15

Keeler, Jason Michael. "PREDICTORS OF ARTERIAL STIFFNESS IN LAW ENFORCEMENT OFFICERS." UKnowledge, 2018. https://uknowledge.uky.edu/khp_etds/48.

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The prevalence of cardiovascular disease (CVD) among law enforcement officers (LEOs) is slightly higher than the general population. Furthermore, the prevalence of CVD doubles among LEOs following retirement compared to the general population. The measure of arterial stiffness serves as an independent risk factor that has prognostic value for future incidence of CVD. However, there is limited research on lifestyle, occupational, and demographic factors that may be associated with increased arterial stiffness in LEOs. Therefore, the purpose of this investigation was to compare the level of arte

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16

Neto, Nilton Salles Rosa. "Avaliação não invasiva das propriedades estruturais de grandes artérias em pacientes com arterite de Takayasu." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/5/5164/tde-16092013-151428/.

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A Arterite de Takayasu (AT) é uma vasculite granulomatosa de aorta e grandes vasos associada a elevado risco cardiovascular. A velocidade de onda de pulso (VOP) é um método de avaliação indireta de diminuição da distensibilidade arterial, e valores elevados de VOP correlacionam-se com maior morbimortalidade cardiovascular. A avaliação da VOP em pacientes com arterite de Takayasu é complexa devido a muitos fatores de confusão. O objetivo do presente estudo foi avaliar a rigidez arterial, por meio da velocidade de onda de pulso carótido-femoral (VOP-CF) em pacientes do sexo feminino com arterite

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17

Alvim, Rafael de Oliveira. "Impacto de marcadores genéticos no fenótipo de rigidez arterial em uma população geral." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/5/5166/tde-02102012-083411/.

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Introdução: A rigidez arterial é um fenômeno complexo caracterizado pela diminuição da complacência vascular frente aos estímulos fisiológicos e patológicos. Semelhantemente a outros fenótipos cardiovasculares, a etiologia da rigidez arterial é modulada por fatores ambientais e genéticos. Levando em consideração a moderada herdabilidade e a característica poligênica do presente fenótipo, torna-se interessante a investigação de marcadores genéticos referentes aos diferentes sistemas envolvidos no remodelamento vascular. Objetivo: Avaliar o impacto dos polimorfismos C242T da subunidade p22phox d

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18

Allen, John. "Measurement and analysis of multi-site photoplethysmographic pulse waveforms in health and arterial disease." Thesis, University of Newcastle Upon Tyne, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.247830.

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Mullan, B. A. "Factors influencing endothelial function and arterial pulse wave morphology : the role of oxidative stress." Thesis, Queen's University Belfast, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398095.

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20

Gradvohl, Hissa Tavares de Lima. "Amplitude de pulso ocular em pacientes com hipertensão arterial sistêmica." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/17/17150/tde-21072016-105946/.

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Objetivo: Avaliar a amplitude de pulso ocular (APO) em pacientes com hipertensão arterial sistêmica, comparando com o grupo controle, e eventuais influências da espessura central da córnea e do comprimento axial (COMPRaxial) do olho na APO. Método: Foram examinados 152 olhos de 76 pacientes com hipertensão arterial sistêmica e 136 olhos de 68 indivíduos que compuseram o grupo controle. Todas as medidas foram tomadas pelo mesmo examinador, no período das 7 às 10h da manhã, na seguinte ordem: pressão arterial sistêmica, tonometria de contorno dinâmico, COMPRaxial e paquimetria (PAQ). A análise e

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21

Pascoalino, Lucas Nóbilo. "Efeitos da atividade física aeróbica sobre a pressão arterial sistêmica e rigidez arterial em pacientes submetidos a transplante cardíaco." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-14012013-153710/.

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O transplante cardíaco permanece sendo o procedimento de escolha para a insuficiência cardíaca refratária, apresentando resultados favoráveis em termos da sintomatologia, qualidade de vida e sobrevida desses pacientes. A hipertensão arterial sistêmica aparece como a comorbidade de maior incidência neste grupo de pacientes, chegando a 95% após cinco anos. O efeito do exercício físico sobre a dinâmica do comportamento tensional na monitorização da pressão arterial ambulatorial durante 24 horas (MAPA-24h) e da rigidez arterial não tem sido estudado neste grupo de pacientes. Nós avaliamos os efeit

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22

Menard, Alain A. "A microprocessor system for the characterisation of arterial pulse waves obtained from microwave impedance measurements." Thesis, University of Ottawa (Canada), 1985. http://hdl.handle.net/10393/4735.

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Júnior, Raimundo Jenner Paraiso Pessôa. "Impacto do gênero na rigidez arterial, remodelamento cardíaco e pressão arterial em pacientes hipertensos com e sem apneia obstrutiva do sono." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-03022016-110209/.

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Introdução: A apneia obstrutiva do sono (AOS) é uma condição clínica comum associada com o aumento do risco cardiovascular. No entanto, a maioria dos estudos envolvendo AOS e desfechos cardiovasculares recrutaram de forma preponderante os homens. Em pacientes hipertensos, a AOS pode contribuir para a lesão de órgãos-alvo e alterações no descenso noturno em homens. O impacto da AOS nas mulheres hipertensas é pouco estudado. O objetivo deste estudo é estudar o impacto da AOS na rigidez arterial da aorta (avaliada pela velocidade da onda de pulso, VOP, carótida-femoral), disfunção diastólica e al

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Dastmalchi, Azadeh. "Beat-to-Beat Estimation of Blood Pressure by Artificial Neural Network." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/31962.

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High blood pressure is a major public health issue. However, there are many physical and non-physical factors that affect the measurement of blood pressure (BP) over very short time spans. Therefore, it is very difficult to write a mathematical equation which includes all relevant factors needed to estimate accurate BP values. As a result, a possible solution to overcome these limitations is the use of an artificial neural network (ANN). The aim of this research is to design and implement a new ANN approach, which correlates the arterial pulse waveform shape to BP values, for estimation of BP

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Shah, Amy S. M. D. "Racial Differences in Arterial Stiffness Among Adolescents and Young Adults with Type 2 Diabetes." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1298040943.

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Eberth, John Francis. "Arterial biomechanics and the influences of pulsatility on growth and remodeling." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3117.

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Sanz, Miralles Elena C. "Pulse wave imaging as an indicator of arterial stiffness in patients affected with periodontitis = Imagen de onda de pulso como indicador de la rigidez arterial en el paciente periodontal = Imatge de l’ona del pols com indicador de rigidesa arterial en el pacient periodontal." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/406351.

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In this thesis, the relationship between periodontitis and arterial stiffness was assessed by a new technique known as Pulse Wave Imaging (PWI). PWI is a non-invasive ultrasound-based technique developed by members of our team, and is intended to overcome some limitations of classic methods for assessing elasticity. PWI can be used to determine Pulse Wave Velocity (PWV) and assess homogeneity in the transmission of the wave (R2). In addition, a feasibility study was conducted to determine Pulse Pressure (PP) at a central artery through PWI. A cross-sectional study including a sample of 80

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Schoevers, Jacobus Engelbertus. "Low blood oxygen saturation quantification in human arterial and venous circulation." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/21460.

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Thesis (MScIng)--Stellenbosch University, 2008.<br>ENGLISH ABSTRACT: Conventional pulse oximetry has limited accuracy in measuring blood oxygen saturation in low saturation and perfusion scenarios. This limits the application of pulse oximetry in patients su ering from peripheral vascular a ictions. A novel pulse oximetry system is presented in this study which proposes solutions to these low saturation and perfusion issues. The presented system was designed to overcome the low perfusion issues by inducing an arti cial pulse in the detected photoplethysmograph. A novel arterio-venous hyp

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Elam, Charles R. IV. "Predicting Arterial Oxygen Desaturation Events Via Patient Journal and Pulse Oximetry Data in Postoperative Ambulatory Surgery Patients." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5649.

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Associations between patient and procedural factors on the nature and quality of the immediate in-home recovery from anesthesia following ambulatory orthopedic surgery are unknown. Further, there is a paucity of outcomes research quantitatively categorizing in-home patient recovery and safety following discharge from same-day orthopedic procedures. Tools are available, however, to shed light on outcomes in this population, and integration of such available measures is critical. Ambulatory orthopedic surgery is a burgeoning specialty, with growth expected over the foreseeable future. The exp

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Prokopowitsch, Aleksander Snioka. "Avaliação não-invasiva das propriedades da parede arterial em pacientes portadoras de lúpus eritematoso sistêmico." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/5/5145/tde-01062007-114759/.

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OBJETIVO: Avaliar a rigidez e distensibilidade arterial em mulheres não-menopausadas portadoras de lúpus eritematoso sistêmico (LES), bem como a influência da atividade de doença sobre esses parâmetros. MÉTODOS: 37 pacientes lúpicas do sexo feminino com idade menor ou igual a 40 anos e com até 10 anos de doença foram selecionadas para o estudo. Os critérios de exclusão utilizados foram: tabagismo atual ou prévio, hipertensão arterial sistêmica, diabetes mellitus, obesidade, insuficiência renal crônica, síndrome antifosfolípide secundária e gravidez ou menopausa no momento do estudo. As pacient

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Marwah, Kunal. "Development of Motion Artifact Rejection Algorithms for Ambulatory Heart Rate and Arterial Oxygen Measurement By A Wearable Pulse Oximeter." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-theses/1320.

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Over the past decade, there has been an increasing interest in the real-time monitoring of ambulatory vital signs such as heart rate (HR) and arterial blood oxygen saturation (SpO2) using wearable medical sensors during field operations. These measurements can convey valuable information regarding the state of health and allow first responders and front-line medics to better monitor and prioritize medical intervention of military combatants, firefighters, miners and mountaineers in case of medical emergencies. However, the primary challenge encountered when using these sensors in a non-clinica

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Zhao, Xuandong. "A study of Quantification of Aortic Compliance in Mice using Radial Acquisition Phase Contrast MRI." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1273001921.

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Pereira, Edison Nunes. "AVALIAÇÃO DOS PARÂMETROS DE MEDIDA CENTRAL DA PRESSÃO ARTERIAL DE PARTICIPANTES DA CAMINHADA ECOLÓGICA DE GOIÁS." Pontifícia Universidade Católica de Goiás, 2015. http://localhost:8080/tede/handle/tede/3151.

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Made available in DSpace on 2016-08-10T10:57:43Z (GMT). No. of bitstreams: 1 Edison Nunes Pereira.pdf: 2680988 bytes, checksum: 2c09ac181f36ff093474c57fcd59da95 (MD5) Previous issue date: 2015-08-11<br>In Goiás, the Ecological walk takes place annually and is an unique event for its distance (310km) and dynamics of performance (average of 62km-day for 5 days, average speed 7.6Km-h). Although the beneficial effects of moderate exercise are well known, the effects of intense exercise with long duration, as the Ecological walk, have not been well studied. This study aimed to verify the effects

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Mendes, Alessandra Beatriz Balduino. "Avaliação da rigidez arterial e pressão aórtica central em pacientes hipertensos resistentes." Faculdade de Medicina de São José do Rio Preto, 2015. http://hdl.handle.net/tede/268.

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Submitted by Fabíola Silva (fabiola.silva@famerp.br) on 2016-06-21T13:59:02Z No. of bitstreams: 1 alessandrabeatrizbalduinomendes_dissert.pdf: 1117178 bytes, checksum: 15a5bcd81c5425cf0d4f661ae4b94a04 (MD5)<br>Made available in DSpace on 2016-06-21T13:59:02Z (GMT). No. of bitstreams: 1 alessandrabeatrizbalduinomendes_dissert.pdf: 1117178 bytes, checksum: 15a5bcd81c5425cf0d4f661ae4b94a04 (MD5) Previous issue date: 2015-09-24<br>Background: Hypertension Resistant (RH) is defined as office blood pressure (BP) ≥140 / 90 mmHg in patients using at least three antihypertensive classes at optim

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Warren, Kristen Marie. "Multichannel Pulse Oximetry: Effectiveness in Reducing HR and SpO2 error due to Motion Artifacts." Digital WPI, 2016. https://digitalcommons.wpi.edu/etd-theses/1219.

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Pulse oximetry is used to measure heart rate (HR) and arterial oxygen saturation (SpO2) from photoplethysmographic (PPG) waveforms. PPG waveforms are highly sensitive to motion artifact (MA), limiting the implementation of pulse oximetry in mobile physiological monitoring using wearable devices. Previous studies have shown that multichannel pulse oximetry can successfully acquire diverse signal information during simple, repetitive motion, thus leading to differences in motion tolerance across channels. In this study, we introduce a multichannel forehead-mounted pulse oximeter and investigate

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雅史, 齋藤. "Non-invasive assessment of arterial stiffness by pulse wave analysis : in vivo measurements and one-dimensional theoretical model." Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB12426688/?lang=0, 2012. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB12426688/?lang=0.

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Ramuka, Piyush R. "Real-Time Adaptive Noise Cancellation in Pulse Oximetry: Accuracy, Processing Speed and Program Memory Considerations." Digital WPI, 2009. https://digitalcommons.wpi.edu/etd-theses/116.

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A wireless, battery operated pulse oximeter system with a forehead mounted optical sensor was designed in our laboratory. This wireless pulse oximeter (WPO) would enable field medics to monitor arterial oxygen saturation (SpO2) and heart rate (HR) information accurately following injuries, thereby help to prioritize life saving medical interventions when resources are limited. Pulse oximeters developed for field-based applications must be resistant to motion artifacts since motion artifacts degrade the signal quality of the photoplethysmographic (PPG) signals from which measurements are derive

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Tolezani, Elaine Cristina. "Determinantes das propriedades funcionais e estruturais de grandes artérias em uma população de indivíduos adultos saudáveis." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-07122012-151544/.

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Alterações das propriedades funcionais e estruturais de grandes artérias são correlacionadas à maior risco cardiovascular em diferentes populações. Recentes diretrizes europeias e brasileiras de hipertensão arterial incluem avaliações da espessura íntima medial (EIM) de carótida e da velocidade de onda de pulso (VOP) aórtica como métodos para avaliação de doença subclínica do paciente hipertenso. Estabelecer valores de referência dos métodos de avaliação da estrutura e da função arteriais e os principais determinantes clínicos e demográficos dos parâmetros obtidos com estes métodos, além de su

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Andrade, Danieli Castro Oliveira de. "Avaliação não-invasiva das propriedades da parede arterial em pacientes com síndrome antifosfolípide primária." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/5/5145/tde-10032008-152144/.

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Objetivo: A aterosclerose prematura e acelerada tem sido recentemente reconhecida como um fator adicional de dano vascular nos pacientes com Síndrome Antifosfolípide Primária (SAFP). Esses pacientes podem ser beneficiados com o emprego de métodos para detecção precoce de aterosclerose como a Velocidade de Onda de Pulso (VOP) e o Echo-tracking (ET). Esses métodos têm sido reconhecidos pela capacidade de avaliar de forma não-invasiva a progressão da aterosclerose na parede vascular. Portanto, nosso principal objetivo foi avaliar a aterosclerose prematura nesses pacientes com SAFP. Pacientes e Mé

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Stucke, Dea. "Association of dietary advanced glycation end products (AGEs) with inflammation and arterial stiffness in youth with type I diabetes." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1592135011714719.

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Tai, Yu Lun Tai. "UPPER- AND LOWER-BODY RESISTANCE EXERCISE WITH AND WITHOUT BLOOD FLOW RESTRICTION IN HEMODYNAMICS, PULSE WAVE REFLECTION, ARTERIAL STIFFNESS, AND AUTONOMIC MODULATION." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1530616652836558.

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Andersson, Klara, and Paulsson Esther Busch. "Accuracy Validation of Pulse Oximeters used at Hospitals : A Cross-Sectional Study performed in Stockholm." Thesis, KTH, Skolan för teknik och hälsa (STH), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210030.

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This thesis had the purpose to look into the accuracy of the pulse oximeter, the experienced as well as the actual. A pulse oximeter utilizes optics to non-invasively estimate the oxygen saturation (SO2) in the blood with an indirect value (SpO2). The accuracy of the pulse oximeter and its two belonging sensors (ear and finger) was compared against the method that is considered to give the most reliable value of this parameter, i.e. arterial blood gas test (SaO2). The experienced accuracy was evaluated with the help of a questionnaire. The target group was healthcare professionals at four main

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Alvim, Rafael de Oliveira. "Herdabilidade da velocidade de onda de pulso e associação do controle glicêmico e perfil lipídico com a rigidez arterial em uma população brasileira: \"Projeto Corações de Baependi\"." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/5/5131/tde-06062016-135643/.

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INTRODUÇÃO:A rigidez arterial aumentada é um importante determinante do risco cardiovascular e um forte preditor de morbimortalidade. Além disso, estudos demonstram que o enrijecimento vascular pode estar associado a fatores genéticos e metabólicos. Portanto,os objetivos do presente estudo são determinar a herdabilidade da velocidade de onda de pulso (VOP) e avaliar a associação do perfil lipídico e do controle glicêmico com o fenótipo de rigidez arterial em uma população brasileira.MÉTODOS:Foram selecionados 1675 indivíduos (ambos os gêneros com idade entre 18 e 102 anos) distribuídos em 109

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Leitão, Cátia Sofia Jorge. "Optical fibre sensors as a non-invasive technology to the central arterial pressure assessment." Doctoral thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/21653.

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Doutoramento em Engenharia Física<br>Com o presente trabalho pretendeu-se explorar soluções de fibra ótica na aquisição da onda de pulso na artéria carótida, para análise da sua morfologia e cálculo da pressão arterial central. Foram desenvolvidos três sistemas, dois baseados em redes de Bragg, gravadas em fibra de sílica, e outro em modulação de intensidade, usando fibra ótica de plástico. O primeiro sensor foi desenvolvido com o objetivo de testar a exequibilidade da utilização de fibra ótica nesta aplicação. Após resultados promissores da sua caracterização e testes em sujeitos, o desenvo

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Dahlén, Elsa, Niclas Bjarnegård, Toste Länne, Fredrik H. Nyström, and Carl Johan Östgren. "Sagittal abdominal diameter is a more independent measure compared with waist circumference to predict arterial stiffness in subjects with type 2 diabetes - a prospective observational cohort study." Linköpings universitet, Allmänmedicin, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-93864.

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Background Anthropometric measurements are useful in clinical practice since they are non-invasive and cheap. Previous studies suggest that sagittal abdominal diameter (SAD) may be a better measure of visceral fat depots. The aim of this study was to prospectively explore and compare how laboratory and anthropometric risk markers predicted subclinical organ damage in 255 patients, with type 2 diabetes, after four years. Methods Baseline investigations were performed in 2006 and were repeated at follow-up in 2010. Carotid intima-media thickness (IMT) was evaluated by ultrasonography and aortic

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Marshall, Erica M. "The Effects of Bilateral and Unilateral Upper-Body Acute Resistance Exercise on Cardiovascular Function." Kent State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=kent1584477977402023.

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Mueller, Jonathon W. "The effect of differentiation technique utilized in continuous noninvasive blood pressure measurement." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1145295553.

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Soukup, Ladislav. "Stanovení šíření pulzové vlny z dat celotělové bioimpedance." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-438883.

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This thesis deals with the methodology of use of whole-body impedance cardiography for evaluation of pulse wave velocity. The first three chapters explain selected hemodynamic properties of the arterial system related to the issue of pulse wave propagation. At the same time the ordinary methods for estimation, its disadvantages and merits has been summarized. Points at issue of whole-body impedance evaluation methodology for pulse wave velocity are researched in second part of this thesis. In order that analysis the procedure for correct methodology has been determined. Particularly determinat

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Moore, Stephanie M. "EFFECT OF BODY MASS INDEX ON POST-EXERCISE HEMODYNAMIC RESPONSES." UKnowledge, 2014. http://uknowledge.uky.edu/khp_etds/14.

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To assess the relationships of body mass index (BMI) on arterial stiffness at rest and post-maximal treadmill graded exercise testing (GXT). Forty-four apparently healthy, young adult males (22.1 ± 0.48 years) were recruited and divided into either a healthy weight (H, ≤24.9 kg/m2), overweight (OV, 24.9-29.9 kg/m2) or obese (OB, ≥29.9 kg/m2) group based on BMI. All subjects underwent arterial stiffness (carotid-femoral pulse wave velocity, cfPWV), blood pressure (BP), pulse pressure (PP), mean arterial pressure (MAP) and body composition (bioelectrical impedance analysis, BIA) measurements at

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Li, Lulu [Verfasser]. "Measuring fluid shear stress with a novel Doppler-derived relative pulse slope index and maximal systolic acceleration approach to detect peripheral arterial disease and to modulate arteriogenesis / Lulu Li." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2017. http://d-nb.info/113307426X/34.

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