View clinical trials related to Pulmonary Hypertension.
Filter by:According to the literature available pulmonary hypertension is present in 12 to 23% of patients suffering from Sjögren Syndrome. However epidemiological data are based on non-invasive measurements using echocardiography. Furthermore, no data are available regarding exercise hemodynamics in those patients. This study investigates pulmonary hemodynamics at rest and during exercise in patients suffering from primary and secondary Sjögren Syndrome. Patients under suspicion for pulmonary hypertension (PH) will be offered further investigations including right heart catheterization.
To evaluate the acute effect of recombinant human brain natriuretic peptide(rhBNP) on pulmonary hypertension of acute exacerbations of chronic pulmonary disease. rhBNP was administered as a continuous infusion for 24 hours , pulmonary artery pressure and other hemodynamic parameters were monitored by Swan- Ganz catheter.
NeoLifeS is a cohort follow up study that prospectively collects data of regular care of children born preterm in the University Medical Center Groningen (UMCG) and aims to improve the quality of care for these children. NeoLifeS-Heart is a sub-study that focuses on the problem that a high proportion of preterm infants develop cardiovascular disorders. Related to the immaturity of their lungs, preterm infants are at risk to develop the condition Bronchopulmonary dysplasia (BPD). Also, the vasculature of the lungs is often not fully developed, making them more vulnerable for the development of Pulmonary Hypertension (PH), a high blood pressure in the lungs. 15-20% of the infants with extremely low birth weight are believed to develop PH, this proportion has been suggested to raise to 50% in infants with severe BPD. The presence of PH significantly worsens the prognosis and survival of these children. The condition PH is insufficiently characterized. Knowledge of incidence, prevalence, risk factors for the development of PH and survival, will be the first step in improving detection strategies, possible treatment options and thereby prognosis and survival of these children. Objective: To determine the incidence and prevalence of PH in preterm infants. In addition we aim to identify risk factors for the development of PH and determine the survival and prognosis of these preterm infants. Study design: A prospective cohort study. Study population: All preterm infants, admitted at the neonatology UMCG, born <30 weeks and/or birth weight < 1000 gram, who participate in NeoLifeS Primary parameters: The occurrence of PH (Incidence and Prevalence). Secondary parameters: - Maternal and neonatal patient characteristics that are potential risk factors for the development of PH, - Morbidity-score (quality of life and hospital admissions) and mortality.
Pulmonary hypertension (PH) features symptoms related to a decreased cardiac autonomic response, pulmonary function and exercise capacity. Non-pharmacological interventions are low cost and can significant enhance outcomes in these patients. Neuromuscular electrical stimulation (NMES) has been proposed as a viable therapeutic approach in patients with functional limitations, particularly those that present with difficulty to perform exercise protocols. Objective: to evaluate the impact of NMES on exercise capacity, spirometry values and quality of life of patients with PH. Material and methods: prospective randomized controlled study with a control group (GC, n9) and NMES goup (GE, n8). Quality of life and exercise capacity through the six-minute walk test (6MWT) were assessed before and after the NMES protocol. Results: the GE presented with a significant improvement in distance walked in the 6MWT, cycle ergometry, spirometry and quality of life in the areas of vitality, emotional and social aspects of the questionnaire Short Form Health Survey-36. Conclusion: NMES is a useful tool in the treatment of patients with PH, resulting in improved exercise capacity, quality of life and lung function testing.
This was a multicenter, randomized (1:1 inhaled treprostinil: placebo), double-blinded, placebo-controlled trial to evaluate the safety and efficacy of inhaled treprostinil in subjects with pre-capillary pulmonary hypertension (PH) associated with interstitial lung disease (ILD) including combined pulmonary fibrosis and emphysema (CPFE). The study included 326 patients at approximately 120 clinical trial centers. The treatment phase of the study lasted approximately 16 weeks. Patients who completed all required assessments were eligible to enter an open-label, extension study (RIN-PH-202).
Pulmonary hypertension (PH) is a consequence of an increase in pulmonary vascular resistance (PVR), pulmonary blood flow, pulmonary venous pressure, or a combination of these elements. Pulmonary arterial hypertension is a frequent complication of congenital heart disease, particularly in patients with systemic-to-pulmonary shunts. Persistent exposure o f the pulmonary vasculature to increased blood flow and pressure may result in vascular remodeling and dysfunction. This leads to increased pulmonary vascular resistance and, ultimately, to reversal of the shunt and development of Eisenmenger's syndrome. It may be more appropriate to define pulmonary hypertension according to the ratio of MPAP to mean systemic arterial pressure (MPAP/MAP) because children may have a low mean systemic blood pressure. MPAP/MAP ratio of < 0.25 is normal, a ratio of 0.33-0.5 indicates moderate pulmonary hypertension, and a ratio of > 0.5 is indicative of severe pulmonary hypertension
The investigators are performing this research study to determine whether having low iron-sulfur cluster levels can cause a disease known as pulmonary hypertension (PH). PH is defined as abnormally high blood pressure in the arteries of the lungs. Usually, small specialized structures inside each human cell called mitochondria are in charge of generating energy within lung arteries for normal function. During situations of disease or stress, lung arteries undergo a change in the function of mitochondria, resulting in the development of PH. In studies on mice, investigators have learned that alterations in the production of specific metal complexes called iron-sulfur clusters are responsible for these changes. This makes it more likely that mice will develop PH. In this study, the investigators want to find out if alteration of iron-sulfur cluster formation leads to increased likelihood of developing PH in humans.
mTOR activation has been shown to be relevant in the development and progression of pulmonary hypertension. Inhibition of mTOR has been shown to reverse or regress pulmonary hypertension in animal models. ABI-009 is an albumin-bound mTOR inhibitor with improved penetration in lung tissue.
This is an observational prospective study aiming to clarify the prevalence of pulmonary hypertension in patients with Myeloproliferative Neoplasms and their prognosis. All patients attending our department with the above mentioned neoplasms will be offered inclusion in this study. All will have an echo performed and patients identified as being at risk of pulmonary hypertension will be offered complete investigation as specified by the European Cardiology Association. All patients will be followed up for a total of five years to identify prognosis.
STUDY OBJECTIVES Primary objective To evaluate the effect of macitentan 10 mg on pulmonary vascular resistance (PVR) as compared to placebo in subjects with pulmonary hypertension (PH) after left ventricular assist device (LVAD) implantation. Secondary objectives To evaluate the effect of macitentan 10 mg as compared to placebo on cardio-pulmonary hemodynamics and disease severity in subjects with PH after LVAD implantation. To evaluate the safety and tolerability of macitentan 10 mg in subjects with PH after LVAD implantation. Exploratory objectives To explore the potential effect of macitentan 10 mg as compared to placebo on right ventricular function in subjects with PH after LVAD implantation. To explore the potential effect of macitentan 10 mg as compared to placebo on selected clinical events in subjects with PH after LVAD implantation. To explore the potential effect of macitentan 10 mg as compared to placebo on renal function as measured by glomerular filtration rate (GFR) in subjects with PH after LVAD implantation.