View clinical trials related to Pulmonary Hypertension.
Filter by:Systemic sclerosis (SSc) is an orphan, multiorgan disease affecting the connective tissue of the skin and several internal organs. Pulmonary hypertension (PH) is a fatal disorder characterized by an increase in pulmonary vascular resistance, which leads to right ventricular failure. Despite being recently the object of greater attention and despite therapeutic advances, pulmonary hypertension due to SSc remains associated with a dismal 47 - 67% 3-year survival. Among SSc patients prospectively followed in the "European League Against Rheumatism Scleroderma Trials and Research" (EUSTAR) cohort, 26% of death was related to pulmonary hypertension. Although some previous data have suggested the protective effects of calcium channel blockers on the development of pulmonary hypertension, the potential preventive effects of vasodilators for the prevention of Pulmonary hypertension have not been determined yet. In addition to be considered routinely for the treatment of SSc-related pulmonary hypertension, prostanoids, endothelin receptor antagonists (ETRA) and Phosphodiesterase-5 inhibitors (PDE5i) can also be used for this indication. This observational trial is one out of five observational trials of the collaborative project "To decipher the optimal management of systemic sclerosis" (DeSScipher). Aim of this observational trial is: - to compare the outcomes of adult and juvenile SSc patients who are at high risk of developing pulmonary hypertension and are receiving either different vasodilator treatments or no vasodilator treatment.
The purpose of this study is to evaluate the lung Doppler signals in patients with pulmonary hypertension that undergo (prospective arm) or underwent (retrospective arm) right heart catheterization (RHC) in order to assess whether this non-invasive tool could be used in pulmonary hypertension diagnosis and monitoring.
This study is looking to see if giving ranolazine to subjects on stable pulmonary hypertension specific therapies but with right ventricular dysfunction (RVEF <45%) would improve their outcome. This study is accompanied by a baseline comparison of the metabolic profiling/microRNA/iPS cells of subjects with and without right ventricular dysfunction.
Goal of the study is to assess the frequency of pulmonary hypertension in patients with chronic myeloproliferative diseases. In each patient an echocardiography at rest will be performed. In patients without musculoskeletal disease an exercise test (spiroergometry) will be performed. Patients with elevated SPAP at rest or with reduced exercise capacity (peak VO2 < 65%) a right heart catheterization (RHC) will be recommended. Also patients with advanced NYHA functional class (III or IV) or with typical PH findings in electrocardiogram will be advised to undergo a RHC. Additionally for the evaluation of exercise capacity a 6 MWD will be performed. This work- up of patients allows clinical and hemodynamic evaluation.
The purpose of this study is to evaluate patients with pulmonary hypertension and sickle cell disease who have had multiple echocardiograms. Previous studies have shown that an elevated tricuspid jet (TR) regurgitant velocity on echo in this population is a predictor of mortality. This initial data only examined an isolated TR jet velocity. It was presumed that the mortality was related to pulmonary hypertension. It is the aim of this study to retrospectively evaluate patients who have had multiple echocardiograms and to determine if patients who had either a normalization of their TR jet velocity on a subsequent echo or had no evidence of pulmonary hypertension on right heart catheterization had a similar mortality rate to those with persistently elevated TR jet velocity.
The course of both pulmonary embolism (PE) and one of its more relevant late complications, i.e. chronic thromboembolic pulmonary hypertension (CTEPH) is still substantially unknown. Recent evidence has shown that the incidence of CTEPH is higher than previously believed, but this has not been confirmed by other studies. A clear link between PE and CTEPH has been questioned by some experts. A great number of patients affected by PE persistently have residual chronic thromboembolic material the meaning of which is a matter of debate. The evidence sustaining a link between chronic residual PE and subsequent PE recurrences or CTEPH is insufficient. Thus, a nationwide, multicentre, prospective cohort study was designed with the following aims: 1. to ascertain the incidence of symptomatic CTEPH after a first episode of acute PE; 2. to ascertain the incidence of venous thromboembolic (VTE) recurrences after a first episode of acute PE; 3. to evaluate whether a relation exists between chronic residual PE and CTEPH 4. to evaluate whether a relation exists between chronic residual PE and VTE recurrences; 5. to evaluate whether a relation exists between persistent right ventricular dysfunction and CTEPH; 6. to evaluate whether a relation exists between persistent right ventricular dysfunction and PE recurrences. For each enrolling centre, consecutive outpatients or inpatients with an objectively diagnosed first acute PE episode are considered eligible.
An Open Label, Pilot Study Testing the Safety and Efficacy of Inhaled Treprostinil (Tyvaso®) in the Treatment of Pulmonary Hypertension (PH) Associated with Chronic Obstructive Pulmonary Disease (COPD)
Background: - High blood pressure in the lungs, known as pulmonary arterial hypertension (PAH), is a rare disorder. Some people have disease-associated PAH and some have PAH from an unknown cause. Researchers want to follow the natural history of all PAH patients to understand how PAH progresses in order to discover targets for future research into new treatments. To further identify treatment targets, they will compare healthy volunteers to patients with PAH. Objectives: - To study the natural history of PAH. Eligibility: - Individuals at least 18 years of age who have PAH. - Healthy volunteers at least 18 years of age. Design: - Participants with PAH will have periodic visits to the National Institutes of Health Clinical Center. After the first visit, they will return in 6 months and then yearly or every other year for as long as the study continues. - The first visit will take up to 3 days. It will involve the following tests: - Physical exam and medical history - Blood and urine samples - Heart and lung function tests and imaging studies - Six-minute walk test - Questions about exercise and physical activity - Healthy volunteers will have only one visit to the Clinical Center, during which they will undergo screening tests, and complete many of the same tests as patients with PAH
Pulmonary arterial hypertension (PAH) is a condition characterized by an increased pulmonary vascular resistance that can lead to right heart failure and death. Several diseases are known etiologies of PAH including scleroderma and cirrhosis. The presence of PAH in the context of systemic sclerosis or cirrhosis has a dramatic impact on prognosis and survival of the connective tissue or liver disease. Despite advances in the diagnosis of PAH, echocardiography remains a necessary test for screening PAH in patients with scleroderma or cirrhosis. However, echocardiography is less than ideal for diagnosing PAH and predicting treatment response. Thus, there is a pressing need to identify methodologies that can accurately and non-invasively recognize the presence of PAH in patients with scleroderma and cirrhosis. Hypothesis: 1. To measure endothelial function and exhaled gases in patients with scleroderma and cirrhosis. To assess whether they correlate with the presence or the development of PAH. 2. The degree of local (forearm) capillary vasodilation during treprostinil iontophoresis identifies patients who will develop PAH and in those already diagnosed PAH predicts response to PAH-specific therapies.
This is a placebo-controlled, double-blind, parallel, randomized, two-part, dose-confirming clinical study characterizing the pharmacodynamic effects of pulsed iNO using the combination product, inhaled nitric oxide/INOpulse DS-C vs. placebo in subjects with World Health Organization (WHO) Group 3 pulmonary hypertension (PH) associated with Chronic Obstructive Pulmonary Disease (COPD) on Long Term Oxygen Therapy (LTOT).