View clinical trials related to Pulmonary Hypertension.
Filter by:Pulmonary hypertension increases the perioperative risk in patients undergoing cardiac surgery for valvular heart diseases, especially in patients with a long life mitral valve disease. The present study wants to test the hypothesis that intravenous administration of sildenafil reduces pulmonary vascular resistances and afterload of the right ventricle.
This is an open-label non-randomized, pilot study to evaluate the effect of Interleukin-1 blockade on exercise capacity in patients with pulmonary hypertension. Subjects will undergo cardiopulmonary exercise testing at baseline, and after 4 weeks treatment with Anakinra (recombinant human Interleukin-1 receptor antagonist.
The purpose of this study is to determine the effects of spironolactone on collagen markers in a large number of patients with pulmonary hypertension. In addition, safety and tolerability of spironolactone, an aldosterone receptor antagonist, in patients with pulmonary arterial hypertension, will be determined.
Registry to follow patients with sarcoidosis associated pulmonary hypertension
This is a randomized controlled trial (RCT) on the use of Inhaled prostaglandin E1 (IPGE1) in Neonatal Hypoxemic Respiratory Failure (NHRF). Fifty patients recruited at 10 high volume sites within the NICHD Neonatal Research Network will constitute a pilot sample to evaluate the feasibility and safety of prolonged IPGE1 administration and determination of optimal dose. In this Pilot RCT, two doses of IPGE1 (300 and 150 ng/kg/min) will be administered over a maximum duration of 72 hours and compared with placebo. Once feasibility and safety of IPGE1 administered over 72 hours has been demonstrated in the pilot trial, a full scale randomized controlled trial will be planned.
To study the effect of acute pulmonary vasodilatation on cerebral tissue oxygenation (CTO) and cerebral blood flow (CBF) as indicator for cerebrovascular autoregulation in comparison to the effects of supplemental oxygen, decreased carbon dioxide by hyperventilation and exercise in patients with pulmonary hypertension (PH) undergoing clinically indicated right heart catheterisation (RHC). Oxygenation and hemodynamic parameters will be assessed during RHC according to standard procedures. Non-invasive near infrared spectroscopy (NIRS) and a nasal canula will be additionally applied to measure CTO, CBF and endtidal CO2 (EtCO2). All parameters will be obtained at rest breathing room air, during an oxygen challenge, during standardized hyperventilation, under vasodilatation testing and during exercise in random, single-blinded sequences (except for exercise and hyperventilation). Pulmonary, systemic and cerebral oxygenation parameters and hemodynamics will be correlated with each other and functional class, quality of life, exercise and cognitive assessments at the time of the RHC and after three month.
This is a Phase 2, Placebo Controlled, Double-Blind, Randomized, Clinical Study to Determine Safety, Tolerability and Efficacy of Pulsed, Inhaled Nitric Oxide (iNO) Versus Placebo as Add-on Therapy in Symptomatic Subjects with Pulmonary Arterial Hypertension (PAH).
Cardiac magnetic resonance imaging has emerged as a potential valuable test for the early detection of Pulmonary Arterial Hypertension. A number of reports have provided some preliminary evidence that Pulmonary Artery (PA) stiffness may be accurately detected by imaging of the pulmonary artery in order to measure PA stiffness. In addition, cardiac MRI could play provide early and effective treatment for Pulmonary Arterial Hypertension (PAH).
Although pulmonary hypertension (PH) is a quite frequent complication of advanced pulmonary diseases, and it is an independent prognostic factor, until now no evidence-based treatment approach exists for those patients. This study will address if the drug sildenafil can lower pulmonary vascular resistance in patients with significant pulmonary hypertension (high blood pressure in the lungs) associated to chronic obstructive pulmonary disease (COPD). It will see if this treatment can improve effort capacity, quality of life without causing a deterioration in pulmonary gas exchange (mainly arterial oxygenation). Patients 18 years of age and older with moderate COPD and pulmonary hypertension (mean pulmonary arterial pressure >30 mmHg) may be eligible for this study. Participants are randomly assigned to receive sildenafil or placebo (pill with no drug) for 16 weeks. Before starting treatment (baseline), and a the end of the study, the patients have a comprehensive assessment including: - a chest x-ray and CT scan (only at baseline); - pulmonary function tests to measure how much air the patient can breathe in and out, and the capacity of diffusion of gases; - arterial blood gases analysis (for safety reason this examination is performed at baseline, before the randomization after one hour from the administration of a tablet (20 mg) of sildenafil, and every month) - an echocardiogram (heart ultrasound) (only at baseline); - a 6-minute walk test to measure exercise capacity; - a quality-of-life assessment (SF-36 questionnaire) - a right heart catheterization to evaluate the severity of hypertension At the end of the 16-week period, patients may opt to continue to receive sildenafil and monitoring in an open-label phase of the study for up to 1 year.
This is a phase 2, Multi-center, double-blind, randomized, placebo-controlled study to evaluate the effects of inhaled Iloprost in patients with pulmonary hypertension secondary to COPD. The main objective is to investigate the effect of iloprost on exercise endurance time during constant work rate cardiopulmonary exercise testing. Other efficacy and safety endpoints will additionally be analyzed.