Active clinical trials for "Hypertension, Pulmonary"

Assessment of the prognostic value of the estimation of plasma volume or its variation in patients with pulmonary arterial hypertension (PAH) or chronic thromboembolic pulmonary hypertension (CTEPH) after acute right heart failure.

Patients with pulmonary hypertension underwent (routine) Holter ECG and were screened for (malignant) arrhyhtmias. Results of Holter ECGs were correlated with clinicial and technical data (echocardiography and right heart catheterization).

The purpose of the current study is to evaluate the clinical and physiologic course of Kyrgyz highlanders with high altitude pulmonary hypertension (HAPH) by performing a longitudinal cohort study. To this end, the investigators will invite the same highlanders who participated in the study in 2012 to undergo follow-up examinations in 2017, in order to allow comparisons of current results with baseline data from 2012.

Pulmonary Hypertension (PH) is a hemodynamic and physiopathological condition that is defined as an increase in mean pulmonary artery pressure ≥25 mmHg when measured at rest. PH often progresses to heart failure and premature deaths. PH is a progressive disease that has many causes, which can affect people of all ages, is characterized by shortness of breath, reduced exercise tolerance, psychological distress and tiredness and reduced quality of life. Surveys of SF-36, 'Nottingham Health Profiles' and 'Minnesota Life with Heart Failure' surveys are routinely performed in PH clinically. However, none of the questionnaires are specific to pulmonary hypertension, so they are incomplete in determining the condition of the disease and the patients. There is no Turkish questionnaire for patients with pulmonary hypertension and other surveys used are inadequate in determining the condition of the patient and the patient since they are not specific to the disease. The aim is to provide a Turkish questionnaire that is specific to pulmonary hypertension in the literature.

The investigators will investigate the interrelationship of macrophage migration inhibitory factor (MIF) and free T4 in patients with PAH.

The collected data from the Zurich Registry for pulmonary Hypertension (PH) are evaluated in a retrospective analysis. This study examines the number of patients and their exact diagnoses who are treated at the University Hospital of Zurich and potentially other participating in the Zurich Registry. Other demographic parameters such as age, gender and body-mass-index are also part of the evaluation. Furthermore, the analysis will focus on the newest guidelines on PH. Therefore, it will be checked how many patients would fulfill the therapeutic goals in terms of New York Heart Classification (NYHA), 6-minute walk distance, sign of right heart failure and N-terminal pro-brain-natriuretic peptide(NTproBNP). Additionally, the study examines on how the patients are treated. Despite the different kind of Drugs, the focus lies on the combination therapy (single, double, triple) and the impact the therapy had on the patients.

Evaluate the correlation between activity level (monitored by Fitbit Flex remote activity tracker) and 6-minute walk distance (6MWD) (performed by investigator) in patients with Pulmonary Arterial Hypertension (PAH) or Chronic Thromboembolic Pulmonary Hypertension (CTEPH) over 6 months in routine clinical practice settings.

This observational study aims to chart patients which get their prostacyclin treatment via the subcutaneous LenusPro pump. How the surgical procedure is performed and the clinical follow-up of these patients. And by this also charting complications that might occur in relation to treatment. Participating centres are located in Denmark, Norway and Sweden.

The assessment of pulmonary artery pressure (PAP) and parameters describing right ventricular function stand in the focus of the diagnosis and clinical management of pulmonary hypertension (PH). Right heart catheterization (RHC) is the gold standard method to measure PAP and to provide hemodynamic information on right ventricular function. However, due to its invasive nature, RHC is not optimal for screening and for close monitoring of the disease. Therefore, the development of non-invasive methods providing reliable PAP measurements and right ventricular functional parameters would be of major benefit. Today, the most often used comprehensive non-invasive method for these purposes is echocardiography. However, the method has limitations; in many cases PAP is significantly under- or overestimated - especially in subjects with co-existing pulmonary diseases. Regarding right ventricular function, although novel echocardiography parameters appear to be promising, they have not yet been evaluated in all forms of PH. Another emerging non-invasive method is cardiac magnetic resonance imaging (MRI). MRI is considered to be as gold standard for the non-invasive assessment of right ventricular function. In addition, our group showed that with a special approach ("vortex method"), MRI enables the determination of PAP with physiologic accuracy, but the method has not yet been validated systematically in different forms of PH. All patients undergoing right heart catheterization in our clinic are candidates for the study. Excluded will be patients not eligible for MRI or declining to take part in the study. MRI and Echocardiography will be performed within two weeks of the RHC. Hypothesis: MRI is superior to echocardiography to non-invasively determine mean PAP in a broad collective of patients with PH of diverse ethology. MRI derived right ventricular functional parameters correlate better to invasive measurements and to established prognostic parameters than echocardiography derived right ventricular functional parameters. Novel right ventricular tissue Doppler parameters add substantially to "classical" echocardiography parameters to describe right ventricular function.

The aim of the study is to assess safety, tolerability and clinical effects of different doses of riociguat in patients with inoperable Chronic Thromboembolic Pulmonary Hypertension (CTEPH) and who are not satisfactorily treated and cannot participate in any other CTEPH trial. In the US the study runs as an Expanded Access program under 21 CFR 312.320.