View clinical trials related to Blood Pressure.
Filter by:To determine the effect of (1) increased sodium intake and (2) increased potassium intake on blood pressure, vascular function and renal function in untreated (pre)hypertensive subjects.
The purpose of this study is to demonstrate equivalency of the GE Healthcare B40 Patient Monitor noninvasive blood pressure (NIBP) parameter compared to the reference device.
The investigators want to validate two non-invasive devices for the determination of central blood pressure, i.e. blood pressure in the aorta (artery leaving the heart).
The WalkMore study will help find out how walking interventions can help overweight/obese postmenopausal women with increased risk of cardiovascular disease lower their blood pressure.
The purpose of this study is to establish the performance of a blood pressure cuff. The hypothesis is that the blood pressure reading from the cuff will provide similar blood pressure as a radial artery.
The current prevalence of hypertension as part of the metabolic syndrome is substantial and is increasing with the rise of obesity worldwide. Chronic elevation of sympathetic nervous system (SNS) activity has been identified as a common and key factor in disease states as obesity-related hypertension (ORH). The renal sympathetic nerves are a major contributor to the complex pathophysiology of this elevated SNS activity. Percutaneous renal denervation (PRDN), the deliberate disruption of the nerves connecting the kidneys with the central nervous system, has been shown to be an effective means of modulating elevated SNS activity. This current study is an observational feasibility study, with the aim to investigate the effect of renal denervation on changes in insulin resistance and blood pressure in patients with obesity related hypertension. The investigators will study different variables: a laboratorial set, a set of blood pressure measurements and a set of investigations in the vascular laboratory. Hypothesis - The investigators hypothesize that renal denervation has a beneficial effect on insulin resistance. - The investigators hypothesize that there will be no complications related to the device or procedure.
Hypertension is a major cause of cardiovascular (CV) morbidity and mortality. Although studies in the general population have demonstrated a continuous reduction in CV risk with each mmHg drop in systolic blood pressure (SBP), multiple observational studies conducted in hemodialysis (HD) patients have demonstrated that patients with mild to moderate hypertension may have decreased mortality compared to those with normal blood pressure (BP). The investigators recently reported that among HD patients, those with routine pre-dialysis BP values that met the Kidney Disease Outcomes Quality Initiative (KDOQI) guidelines (<140/90 mm Hg) had increased mortality compared to patients with mild to moderate hypertension. However, these observational studies included untreated patients in whom low or normal BP may reflect significant cardiac disease or other comorbid conditions. In the setting of reduced vascular compliance and impaired autoregulation, aggressive BP lowering may decrease coronary or cerebral perfusion. Thus, it is unclear if aggressive BP lowering will be harmful or beneficial. A well-designed randomized control trial (RCT) is needed to answer this important question. Prior to conducting a full-scale RCT it is prudent to conduct a pilot study to assess feasibility and inform the design of the former. The investigators propose to conduct a pilot RCT in a prevalent cohort of HD patients to assess the safety and feasibility of treating patients to a low (110-140 mmHg)and standard (155-165) mm Hg pre-dialysis BP target.
Soymilk components such as isoflavones, essential fatty acids, phytoesterols, good fats, inositols might have beneficial effects on controlling complication among diabetic nephropathy patients(DN).Most studies in this regard have been examined the effect of soy consumption on cardiorenal risk factors among patients with DN and there are few data about relationship of soy milk consumption and health effect in patients with DN . Therefore, we evaluated the effects of soy milk compared to cow's milk on blood pressure, inflammation, oxidative stress and fibrinolytic markers and cardiorenal risk factors among these patients. This was a cross-over randomized clinical trial which was conducted in Isfahan among diabetic nephropathy patients. Patients were randomly assigned to consume a diet containing cow's milk or a diet in which only one glass of soy milk was substituted; each one for 4 weeks.
Primary Aim: To evaluate the effect of a lifestyle intervention delivered through telephone-based motivational interviewing (MINT) versus a patient navigation intervention on blood pressure reduction and CRC screening. Hypotheses: Among black men, aged > 50 years with uncontrolled HTN and in need of CRC screening: 1. Hyp. 1: those randomized to the lifestyle intervention will have lower BP compared to those randomized to the patient navigation intervention at 6 months. 2. Hyp. 2: those randomized to the patient navigation intervention will have higher CRC screening rates compared to those randomized to the lifestyle intervention at 6 months.
The Dietary Approaches to Stop Hypertension (DASH) trial has been shown to reduce blood pressure and plasma total and LDL-cholesterol (C) compared to a Western diet, but shows no benefit on other blood lipid variables associated with cardiovascular disease (CVD) risk, namely HDL-cholesterol and triglycerides. The overall objective of this study is to determine whether modification of the DASH diet by substituting carbohydrate with fat will result in improvements in multiple biomarkers of CVD risk. Specifically, the investigators will test the hypotheses that modification of the DASH diet by reducing carbohydrate, primarily in the form of simple sugars and glycemic starches, and allowing for a more liberal intake of total and saturated fat, primarily from dairy foods, will: (1) improve lipoprotein markers of CVD risk (reduced total/HDL-C ratio, apolipoprotein B, small LDL particles, and increased HDL-C, apoAI, and large HDL particles); and (2) result in comparable reductions of systolic and diastolic blood pressure to those achieved with the standard DASH diet. The investigators will also assess the effects of the modified DASH diet on markers of insulin resistance and inflammation. Our main hypotheses will be tested by a controlled dietary intervention conducted in 40 healthy men and women who will be randomly allocated to consume, for 3 weeks each, a control Western diet, a standard DASH diet, and a modified low-carbohydrate DASH diet, separated by 2-week washout periods.