Active clinical trials for "Hypertension"

Pediatric idiopathic pulmonary hypertension has significant morbidity and mortality. An ever expanding body of knowledge indicates the important contribution of inflammation to pathogenesis and successful treatment with glucocorticoids. Over the last several years the investigators have utilized steroids in patients with severe pulmonary hypertension as part of a treatment regimen. These basic science studies possibly identifies a biochemical etiology for the development of disease and may also be impacted by the administration of steroids. Additionally, there is a commercially available assay which tests for all of the above molecules.

cardiopulmonary exercise test evaluate patients with pulmonary hypertension before and after medical or balloon pulmonary angioplasty treatment

The purpose of this study is to determine whether intensive blood pressure and low density lipoprotein (LDL) cholesterol lowering could improve survival and cardiovascular outcome in Japanese diabetic patients with coronary artery disease and history of acute coronary syndrome.

The aim of this study is to determine if lowering blood pressure using FDA approved medication (antihypertensive drugs) alters brain pulsatility and reduces brain amyloid beta protein accumulation in older adults. Amyloid beta protein is high in the brain of older adults with Alzheimer's disease. Hypertension may increase brain amyloid beta protein accumulation and affect memory and thinking ability in older adults. However, whether lowering blood pressure reduces brain amyloid beta protein and improves brain function is inconclusive. The investigators hypothesize that treating high blood pressure alters brain pulsatility, which in turn reduces brain amyloid beta protein accumulation and improves brain structure and function.

The knowledge on the rare type of pulmonary hypertension which can not be explained by left heart disease, respiratory disease or congenital heart disease is very limited. Investigators aim to setup a national registration study for the rare type of pulmonary hypertension, to understand the natural history, survival, progression, genetic and environmental contributions to disease.

The main objective of this study is to analyze the survival of a cohort of patients admitted for acute decompensation of pulmonary arterial hypertension or postembolic pulmonary hypertension and to establish the prognostic value of biomarkers.

Patients with advanced chronic liver diseases treated at the Vienna General Hospital of the Medical University of Vienna will be offered to participate in this prospective observational trial. Clinical parameters and laboratory parameters will be recorded for all patients and patients will undergo a regular follow-up schedule with clinical visits at the Vienna General Hospital. This study is linked to a biobank with serum/plasma, ascitic fluid, urine, GI tract mucosal biopsies, liver biopsies and stool collected from the study participants.

To develop and implement quality improvement programs for the treatment and management of hypertension and diabetes,and preventing and controlling hypertension and diabetes-related diseases in Chinese community. This program will use data collection, analysis, feedback, and process improvement to extend the use of evidence-based guidelines throughout the healthcare system and improve patient care of hypertension and diabetes in Chinese community.

The presence of varices is a serious complication of portal hypertension in liver disease. To prevent variceal haemorrhage, screening and surveillance aims to detect high-risk varices related to varices size and determine the need for primary prophylaxis. Varices size evaluated by endoscopists might not be perfect reference, influenced by experience and machine. Endoscopic ruler is a novel tool to measure the varices size under the endoscopy. The investigators aim to evaluate the bias of varices size between endoscopists and endoscopic ruler as the reference.

The aim of the study is to investigate pulmonary hemodynamics at rest and during exercise in patients before and after kidney transplantation.