Global ETD Search
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 10 of 10 for “"Blood pressure variability"”.
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Blood pressure variability and the characteristics and outcomes of patients with intracerebral haemorrhage
High blood pressure (BP) is the strongest modifiable risk factor for spontaneous intracerebral haemorrhage (ICH). International guidelines about the management of high BP for primary prevention of cardiovascular disease and secondary prevention after stroke refer to mean or 'usual' BP targets for …
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Blood Pressure Variability and Ambulatory Arterial Stiffness Index in Predicting Major Adverse Cardiovascular Events
Background: Increased blood pressure variability (BPV) and ambulatory arterial stiffness index (AASI) are associated with major adverse cardiovascular events (MACE), including stroke, transient ischaemic attack, acute coronary syndrome and cardiovascular (CV) death. However, the prognostic value of …
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Genetic, Anthropometric, and Blood Pressure Variability in a Southern, Rural, Black Population (Mississippi, Body Mass Index)
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1986.
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Vagus Nerve Stimulation In Hypertensive Rats: Assessing Pathophysiology Using ECG And Pressure Data
… Control (n=6) and VNS Treatment (n=6). In vivo blood pressure and electrocardiogram (ECG) were monitored continuously by an implantable telemetry system. We developed and validated methods to calculate time and frequency domain metrics for heart rate variability and blood pressure variability. …
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Characterization of hypertension through multivariate analysis utilizing linear and nonlinear methods
Analysis of blood pressure by nonlinear methods is vastly underutilized in current research. As such, 24-hour ambulatory blood pressure data from a small cohort of borderline hypertensive and normotensive subjects were analyzed using linear and nonlinear methods. Data were collected and provided by …
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Time-frequency investigation of heart rate variability and cardiovascular system modeling of normal and chronic obstructive pulmonary disease (COPD) subjects
… not been fully investigated in the heart rate variability field and the cardiovascular regulation system in normal and Chronic Obstructive Pulmonary Disease (COPD) subjects. It explores the correlations between heart rate variability and cardiovascular regulation, which interact through complex …
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Modeling the Impact of Heart Rate Variability on Blood Pressure in Simulated Atrial Fibrillation Using the BioGears Physiology Engine
… rhythm irregularity, particularly its impact on blood pressure variability (BPV), remain poorly understood. This study uses the BioGears Physiology Engine, an open-source whole-body simulator, to investigate how RR interval irregularity during AF, quantified by the root mean square of successive …
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Investigation of the baroreflex of the rat : steady state and dynamic features
… feedback systems in the body to maintain blood pressure variation within the homeostatic range. In this dissertation, the important features of the carotid and aortic baroreflexes have been extensively investigated on ventilated, central nervous system intact, neuromuscular blocked (NMB) …
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Exploring circadian blood pressure patterns
… of the importance of reducing mean levels of blood pressure (BP), we are less informed about the benefits of reducing other parameters of BP, specifically BP variability (BPV). Ambulatory blood pressure monitoring (ABPM), which can be used to obtain estimates of BP over a 24h period, offers a …
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Effects of sleep deprivation on autonomic nervous system
… nervous system activity by means of heart rate variability (HRV) and blood pressure variability (BPV). All data were acquired in the sleep lab of Columbia University. Data were acquired from the two groups, SD and control. Subjects in the SD group did not sleep for thirty-six hours but subjects …