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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 33 for “"pulse pressure"”.
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THE ASSOCIATION OF VISCERAL ADIPOSE TISSUE WITH PULSE PRESSURE
Background: Obesity and aortic stiffness (AS) contribute to cardiovascular disease (CVD). Central obesity as measured by VAT is thought to be a more specific measure of deleterious adiposity independent of body mass index (BMI). However, the nature of the relationship between VAT and AS in …
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I. Pulse-pressure in health, with some notes on the influence of cardio-vascular disease; & II. Pulse-pressure in certain cardio-vascular disease.
Part. I: PULSE-PRESSURE IN HEALTH, WITH SOME NOTES ON THE INFLUENCE OF CARDIO-VASCULAR DISEASE (1) Most boys examined (9 - I4 years) have a pulse-pressure of 40 - 45 m.m. of mercury. (2) Pulse-pressure of youths from 15 - 20 years is 40 - 50 m.m. (3) The age-group 21 - 30, shows pulse-pressure …
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THE UTILITY OF PULSE PRESSURE MEASURED BY RADIAL ARTERIAL TONOMETRY IN DETERMINING CARDIOVASCULAR DISEASE IN ADULTS
… and is associated with increased LVM and CHF. Pulse wave indices from radial arterial tonometry may be superior measures of arterial stiffness sequela compared to PPb. Relations of increased PPr with increased LVM in a cross-sectional was studied after adjustment for PPb. Second, relations of …
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The distinct contributions of cardiovascular risk factors to cognitive ageing
… aspects of cardiovascular health – such as blood pressure or heart rate – affect the brain through shared or independent pathways, partly because they are often condensed into a single composite score or examined in isolation. The research reported in the following chapters asks: do distinct …
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Arterial blood pressure estimation using ultrasound technology and transmission line arterial model
… work details how to obtain the blood flow and pulse pressure waveforms using ultrasound transducers. Two transducers, one for imaging and one for Doppler, can be used together to derive these waveforms from distension and blood flow velocity measurements. Unfortunately, the only blood pressure …
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Cardiovascular responses to two minutes of isometric contractions of the finger flexors in healthy women
… included; heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), pulse pressure (PP), stroke volume (SV) and cardiac output (CO).
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Arterial blood pressure estimation using ultrasound
While blood pressure is commonly used by doctors as an indicator of patient health, the available techniques to measure the quantity suffer from many inconveniences such as cutting off blood flow, being cumbersome to use, being invasive, or being inaccurate. The research addresses many of these …
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Prediction of performance time on a treadmill stress test following a Bruce protocol
… It was also determined that subjects who had a pulse pressure ≤60 reached the six-minute threshold 87 percent of the time for women and 86 percent of the time for men.
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Signal processing approaches to analyzing patient cardiovascular state
… suggests that time spent outside a certain blood pressure range corresponds to an increased risk of adverse outcomes after surgery. An analysis of blood pressures recorded during surgery could also be tied to patient fluid responsiveness, pulse pressure variability (PPV) can be a predictor of …
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DETECTION OF DEMENTIA RISK IN PRIMARY CARE: PRELIMINARY INVESTIGATION OF A COMPOSITE DEMENTIA RISK SCORE IN VETERANS
… current smoking, alcohol use disorder, and pulse pressure--was created using 10 years of Veterans' electronic medical record information. The predictive accuracy of the composite risk score was in the "good" range (AUC = 0.78) and less conservative estimates were even more accurate …
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Determinants of left ventricular mass as measured by Doppler echocardiography in pre-adolescents
… used to determine sexual maturation. Carotid Pulse pressure was assessed by applanation tomometry in the left carotid artery. Cardiac mass was measured by Doppler Echocardiography. Images of cardiac structures were taken using B-Mode and were then translated to M- Mode. The dimensions at the …
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Fine-scale modeling of failure in an adhesive layer
… on the surface of the filter, the filtration pressure increases; to maintain an economical operation the dust cake must be removed periodically by back-pulse cleaning. Often the dust cake is not removed completely by the back-pulse pressure and the resulting patchy cleaning affects …
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Does altering brachial artery tone with lower-body negative pressure and flow-mediated dilation affect arterial stiffness?
… stimulation induced via lower-body negative pressure (LBNP). Similarly, the impact of flow-mediated dilation (FMD) on brachial artery compliance and distensibility remains unresolved, hi addition, before such measures can be used as prognostic tools, it is important to investigate the …
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A non-invasive central arterial pressure waveform estimation system using ultrasonography for real-time monitoring
… evaluation of a central arterial blood pressure (ABP) waveform using a low-cost ultrasound scanning system. ABP bears significant clinical value in cardiovascular pathophysiology. Non-invasive evaluation of the full ABP waveform has been long desired by medical communities due to its …
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Effect of head elevation on intracranial blood flow velocity following acute ischemic stroke
… patients with associated increased intracranial pressure (ICP) to the ischemic stroke population. A repeated measures quasi-experimental design was used to study the effect of 30, 15, and 0 degree HOB elevation on middle cerebral artery (MCA) mean flow velocity (MFV) in a convenience sample of 20 …
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Central blood pressure
Central aortic systolic blood pressure (cSBP) differs from peripheral systolic blood pressure (pSBP) measured in the arm. cSBP may be estimated non-invasively by application of a generalised transfer function (GIF) to a high fidelity peripheral arterial waveform or from the late systolic shoulder …
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Tipping points, regime shifts and species interactions within shallow marine ecosystems
… world. Research has shown that in response to pressures such as climate change or over exploitation, entire ecosystems can shift to alternative states, a phenomenon termed regime shifts, and in extreme cases can collapse. Ecological regime shifts, or shifts between different ecological states, …
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The association between body composition and arterial stiffness in peri-pubescent children
… artery (CCA) diameter changes, while carotid pulse pressure (cPP) was measured at the left CCA by applanation tonometry. One-way ANOV A analysis revealed significant differences (p<0.001) in all anthropometric measures between the normal weight and overweight children, as well as the normal …
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Newer renal efficiency tests and their value in diagnosis and prognosis
… albumin - uria, anaemia and elevation of blood pressure. One feels that in the multiplication of the kidney function tests, we are getting further and further away from the patient, and our attention is being diverted too much from the ward towards the laboratory. In the following pages, it is …
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Evaluation of the Effect of the Clinical-Decision-Support Systems on Diabetes Management: A Multivariate Meta-Analysis Comparison with Univariate Meta-Analysis
… (LDL), glycated hemoglobin (HbA1c), and blood pressure (PB) have been used as indicators of diabetes care management according to the National Institute for Health and Care Excellence (NICE) guidelines. To combine the results from studies that evaluate the effect of CDSSs on diabetes care …
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