View clinical trials related to Hypertension.
Filter by:Concordance between walking tests and pedometer data may seem like a logical outcome for pulmonary hypertension (PH) patients. However, many individuals have discordant results: results much worse or better during an in-hospital walking test as compared to real life activity. The primary objective of this study is: to determine variables associated with discordance between the distance walked during an in-hospital 6-minute walking test (6MWT) and the average distance travelled per day (observed over a period of 28 days (2 × 14 days) using a pedometer) among PH patients.
High blood pressure is the leading cause of cardiovascular disease worldwide. Many medicines are available to lower blood pressures successfully, as well as many non-medical options, such as dietary changes. Some effective dietary changes include decreasing sodium and increasing potassium in the diet. A lot of focus has been on sodium intake yet; potassium intake in the diet remains low amongst adult Canadians. Excellent data exist in the published research reporting that increasing potassium intake, either as diet or even as supplements, reduces blood pressure and reduces risk of cardiovascular outcomes such as stroke. The overall purpose of this study is to reveal the most effective way of increasing potassium, amongst participants with high blood pressure whose existing intake of potassium is low. In the first stage, participants with high blood pressure and proven low potassium intake will receive dietary counselling. If after 4 weeks, there has not been a desired increase in potassium intake, the patients will be prescribed an additional potassium supplement.
To evaluate the safety and efficacy of first-line combination therapy using riociguat with ambrisentan in patients with Pulmonary Arterial Hypertension (PAH).
The Nurse Cohort Study Xiamen (NCSX) is an open-ended prospective cohort study with very broad research aims. The primary objectives of the NCSX is planned to examine genetic, epigenetic, biological, psychological, social, lifestyle and other environmental factors of nurses in relation to incidence and progression of the common chronic diseases, such as hypertension, ischemic heart disease, stroke, diabetes, chronic kidney disease and some cancers, which are emerging with economic development in Xiamen, China. Specifically, we intend to test whether empirically driven hypothesis and emerging risk factors mainly developed in response to observations in economically developed Western societies apply in a population living in a rapid changing lifestyle in China now.
This study is a effectiveness study of the application of high-definition enhanced computed-tomography for patients with chronic thromboembolic pulmonary hypertension(CTEPH).The patients with CTEPH was randomized into 2 groups,precise pulmonary endarterectomy group(guided by enhanced CT scanning) and traditional pulmonary endarterectomy group,the hemodynamic changes tested with right sided heart catherization from baseline to post-operative period and end-point including peri-operative deaths,follow-up mortality,follow-up parameters of ultrasonic cardiogram(UCG),right-sided heart catherization(RHC),nuclear magnetic resonance imaging(MRI),cardiac pulmonary exercise test(CPET) are documented,so as to compare the prognosis between these 2 groups.
The overall goal is to identify trends and longitudinal associations in psychosocial, food-related, and cardiometabolic risk factors that can guide public health priorities and future research needs aimed at reducing cardiovascular-related disparities in Puerto Rico. To this end, investigators will establish 'PROSPECT: Puerto Rico Observational Study of Psychosocial, Environmental, and Chronic disease Trends', an island-wide, longitudinal population cohort of 2,000 adults (30-75 years) in PR recruited with a community-wide sampling strategy, and assessed in a network of several partner clinics across the island. The study will collect comprehensive data on multiple psychosocial, dietary, and food-related factors, CVD biological markers, and medical record data, with follow-up at 2-years, and will assess variations by urban-rural area and by timing before-after Maria.
Breast cancer is the most common cancer type in European women. Patients treated for early non-metastatic breast cancer comprise a growing group of survivors due to early diagnosis and improved treatment. Many of these survivors experience adverse effects such as decreased bone mineral density, derangement of metabolic markers (fat, glucose, insulin) and increased blood pressure. Increasing risk of bone fracture and cardiometabolic disease (eg. diabetes mellitus type 2). The purpose of this study is to identify mechanisms behind cardiometabolic changes that may be connected to the (neo-)adjuvant treatment. On top of this we hope to indentify potential biological markers that can help prevent development of metabolic disease. We will be recruiting 120 post-menopausal women age 50-70 with early breast cancer and 1-2 times a year for 5 years examine bone mineral density, body composition, glucose and fat metabolism and nerve damage. A questionnaire will be used to collect information on diet, physical activity and quality of life. Derudover anvendes spørgeskemaer til at indsamle information vedrørende. This new knowledge will help clinicians start adequate preventive measures to help patients avoid cardiometabolic disease secondary to cancer treatment.
• Adjunctive use of easily-obtainable maternal sonographic vascular measurements assessing volume status, cardiac output, and systemic vascular resistance by means of inferior vena cava collapsibility/caval index (ICV CI), end-point septal separation (EPSS) for determining left ventricular ejection fraction (LVEF), cardiac output determination (stroke volume x heart rate), stroke volume variation, & radial artery resistance index) augments standard vital sign assessment (pulse pressure and systolic / diastolic predominance) in clinical decision-making potentially leading to more appropriate pharmacologic and clinical therapies with faster resolution of severe hypertension among pregnant women and women in the postpartum period.
Heart attacks and strokes are the leading causes of death in US. High blood viscosity and turbulence in blood flow are the key for cardiovascular diseases. Recent research has shown that application of a strong magnetic field along the blood flow direction will polarize the red blood cells and align them into short chains along the flow, so that the blood viscosity in the flow direction is reduced significantly and disturbed motions in the directions perpendicular to the flow is suppressed. This makes the blood flow laminar, turbulence suppressed, and the possibility of cardiac events reduced. Such magnet treatment also cures rouleaux and improves the blood's oxygen function. The lab tests also confirm that the above effects last more than 24 hours after one treatment. The purpose of this trial is to apply this technology to humans. According to the lab tests, this magnetic treatment has the potential to bring the following benefits to the subjects: (a)The blood viscosity will be reduced by 10-20% or more. (b) The turbulence in blood circulation will be suppressed by the treatment. After the treatment, the blood flow will be laminar. As a joint effect of viscosity reduction and turbulence suppression, the blood pressure will be lowered by 10-20% or more. (c) The subject's blood oxygen function will be improved by the treatment. Especially, if the subject has rouleaux in his/her blood, the effect will be significant. (d) The above effects will last for about 24 hours after one treatment and slowly decay; however, re-treatment will bring the effects back. (e) Because steady laminar blood flow is atheroprotective by active reduction of inflammatory genes, the magnetic treatment, reducing disturbed blood flow hemodynamics, would be possible to have a long term effect as an anti-atherogenic therapy if the treatment keeps for a while. The investigators have just completed the pilot clinical trial. The tests confirm that the technology is safe and effective in lowering the blood pressure and the effect lasts about 24 hours. The present pivotal clinical trials are the continuation and expansion of the pilot tests. The successful clinical trials will make this technology available for people in preventing heart attack and stroke.
The development of portal hypertension is a vital event in the natural progression of cirrhosis and is associated with severe complications including gastroesophageal varices bleeding. Cirrhotic patients with hemorrhagic shock and/or liver failure caused by variceal bleeding face a mortality of 5-20%. Hepatic venous pressure gradient (HVPG) is the recommended golden standard for portal pressure assessment globally with favorable consistency and repeatability. Reducing the HVPG to levels of 12mmHg or below is associated with protection of variceal hemorrhage. An HVPG> 16mmHg indicates a higher risk of death and HVPG ≥ 20mmHg predicts failure to control bleeding, early rebleeding, and death during acute variceal hemorrhage. The management of portal hypertension has showed a trend of diversification with the development of medication, endoscopy, radiological intervention and liver transplantation. Although medication and endoscopic therapy have achieved preferable effects and are recommended as standard of care for the prevention of variceal rebleeding, patients with HVPG≥ 16mmHg still have a high risk of treatment failure and a high rate of rebleeding. Recent years, early TIPS is recommended as the first-line therapy for the prevention of rebleeding in cirrhotic patients with HVPG≥ 20mmHg. However, for those with HVPG values between 16 to 20mmHg, there is still lack of strong evidence to demonstrate the best practice for the management. With the rapid advancement of laparoscopic device and technique, the utility of laparoscopic splenectomy and pericardial devascularization showed less surgical trauma, bleeding and complications while retaining dependable effects compared to traditional open surgery, especially for portal hypertension with hypersplenism. In the study, the investigators aim to conduct a multicenter randomized controlled trial to compare the safety and effectiveness of HVPG-guided (16 to 20mmHg) laparoscopic versus endoscopic therapy for variceal rebleeding in patients with portal hypertension.