Active clinical trials for "Hypertension, Pulmonary"

The incidence of chronic thromboembolic pulmonary hypertension (CTEPH) after acute pulmonary embolism ist not clear. It is estimated to be up to 3.8%. Prospective data registration does not exist. Treatment of choice is pulmonary endarterectomy if the thromboembolic lesions are surgically accessible. Otherwise interventional therapy by means of pulmonary balloon-angioplasty (BPA) or medical therapy is indicated. In Germany, the majority of the patients is referred to three CTEPH centers: Kerckhoff Clinic, Saarland University Hospital and Hannover Medical School to evaluate the therapeutic options. Starting in January 2016 all incident patients will be de-identified and included prospectively. Risk factors, outcome and treatment will be documented.

Pulmonary hypertension (PH) is defined as a group of diseases characterised by an elevated mean pulmonary artery pressure (Ppa) ≥25 mmHg at rest. Recently, chronic myeloproliferative diseases (CMPD) associated with pulmonary hypertension were included in the group 5 category, corresponding to PH for which the aetiology is unclear and/or multifactorial. CMPD include chronic myelogenous leukaemia, chronic neutrophilic leukaemia and chronic eosinophilic leukaemia (which primarily express a myeloid phenotype and polycythaemia vera), idiopathic myelofibrosis, and essential thrombocytosis in which erythroid or megakaryocytic hyperplasia predominates. The purpose of this research: Assess Prevalence of PH in patients with CMPD in Northern Israel Describe the demographics and clinical course in patients with CMPD who are diagnosed with PH.

Chronic thromboembolic pulmonary hypertension causes progressive right heart hypertrophy, dilatation and dysfunction. Surgical treatment is pulmonary endarterectomy, which although only carried out in a single UK centre, provides an excellent model for assessing right ventricular function. Right heart function is most commonly assessed using echocardiography, either transthoracic pre- and post-operatively, or transoesophageal intra-operatively. Measurement of tricuspid annular plane systolic excursion is the best validated and most commonly performed measurement for right heart function, however it may be inaccurate after sternotomy and pericardial opening, making accurate assessment difficult immediately after surgery. Therefore, we aim to compare established methods of assessing right heart function with 3-dimensional echocardiographic reconstruction of the ventricle, using a novel reconstruction mechanism. Right ventricular function will be assessed in 51 patients who undergo pulmonary endarterectomy surgery at baseline, after the pericardium has been opened, following the surgical procedure, using transoesophageal echocardiography, and at six-month outpatient followup using transthoracic echocardiography, as 3D-reconstruction is valid using both modalities. This comparison should allow the investigators to determine whether such a method could replace current measurement parameters for assessment of right ventricular function, which is important for clinical management of patients in a variety of settings.

There will be assessment of patients after acute pulmonary embolism for the development of CTEPH

The study evaluates the rest and exercise hemodynamics of patients presenting either idiopathic fibrotic pulmonary disease or pulmonary fibrosis secondary to connective tissue disease.

Russian National Registry of Patients With Pulmonary Arterial Hypertension (PAH) and Chronic Thromboembolic Pulmonary Hypertension (CTEPH) is a multicenter, observational study of the clinical course and disease management of PAH and CTEPH patients. designed to gather demographic, clinical and prognostic data of routine medical care in prospective manner for newly initiated treatment since Jan 2016. The internet-based registry (www.medibase.pro) fulfills high quality standards through several measures (planned minimum centre contribution of at least 10 patients per year, automated plausibility checks of data at entry, queries, monitoring with source data verification in >50% of participating centers). All consecutive patients diagnosed with World Health Organization Pulmonary Hypertension Groups (WHO Group I) PAH according to specific hemodynamic criteria will be enrolled in participating centers after signing the informed consents. Participating patients will be followed for a minimum of five years from the time of enrollment. It can be applied, among further purposes, for quality assurance: individual centers can confidentially compare their results with the combined outcome of the other centers. It is expected that the registry contributes to optimization of specific drug therapy for PAH and Pulmonary Hypertension (PH).

This study is designed as a prospective study, with the primary endpoint being changes in pulmonary hemodynamic parameters after ELVR in patients with severe emphysema. Secondary endpoints will be changes in lung function parameters, exercise capacity, and QoL.

Pulmonary hypertension (PH) is a complex condition that may be related to many clinical conditions. It is a serious disorder with a high morbidity and mortality rates. PH is classified into five groups according to clinical characteristics, pathological findings, hemodynamic characteristics and treatment response (Galie N, et al., 2016). These five groups include pulmonary arterial hypertension, PH due to left sided heart disease, PH due to lung disease and/or hypoxia, chronic thromboembolic pulmonary hypertension, or other pulmonary arterial obstruction and PH with unclear and/or multifactorial mechanisms (Simonneau G, et al., 2013). PH is a major complication of several hematologic disorders including myeloproliferative neoplasms (MPNs). MPNs are a group of diseases characterized by uncontrolled proliferation of at least one myeloid series due to an abnormal hematopoietic cell clone. There are different types of MPNs including polycythemia vera (PV), essential thrombocythemia (ET), primary myelofibrosis (PMF) & chronic myeloid leukemia ( CML). Myeloproliferative neoplasms (MPNs) are included in group 5 PH (Arber DA, et al., 2016). This study will analyze the clinical and laboratory data of MPNs patients and correlate them with development of PH in these patients aiming to identify parameters that can predict PH in MPNs patients and thus, identifying MPNs patients at highest risk for PH who require close monitoring & screening for PH hoping that early detection and management of PH in MPNs patients can improve morbidity, prognosis and survival in those patients

To evaluate the entire course of exercise during CPET in COPD patients. To study whether CPET, PFTs and arterial blood gases could discriminate between COPD patients with and without PH. To study whether the existence of pulmonary hypertension in COPD is related to characteristic findings in gas exchange and circulatory parameters during cardiopulmonary exercise testing (CPET).

Pulmonary hypertension is a new complication described in hemodialysis patients. in the last year these patients were treated by calcium carbonate orally to control serum phosphor. Calcium phosphor deposits in pulmonary artery can explain this phenomena. The investigators want to investigate the new phosphor non calcium containing agents in hemodialysis patients and to measure the pulmonary pressure.