View clinical trials related to Pulmonary Hypertension.
Filter by:Chronic respiratory diseases are a global burden. Treatment options have improved in recent years, pulmonary rehabilitation plays a key role. Oxygen therapy is recommended in patients with a low saturation at rest, but no clear guidance is given for patients who desaturate during exercise. The effect of ambulatory oxygen during exercise is not yet completely understood, especially in those patients with exercise-induced desaturation. Aim: The goal of this study is to analyse the effect of supplemental oxygen given during a constant work rate exercise test (CWRET) on a cycle ergometer compared to sham air. Methods: We plan to include 25 Patients respiratory patients undergoing pulmonary rehabilitation (male and female; aged >18 years; stable condition >3 weeks (e.g. no exacerbations); resting oxygen saturation (SpO2) ≥ 88%) with exercise induced hypoxemia defined by a fall in oxygen saturation by ≥ 4% during a 6-minute walking test. Patients will undergo an incremental exercise test with a ramp protocol (for evaluating the maximal workload) and two CWRET (75% of the maximal workload) with ambulatory oxygen or placebo (sham air) via standard nasal canula at a flow rate of 5l/min. Patients and assessors will be blinded. The difference endurance time of the CWRET with oxygen vs. sham air will be the primary outcome of this study. Data will be summarized by means (SD) and medians (quartiles) for normal and non-normal distributions. Effects of treatment will be evaluated by mean differences with 95% confidence intervals, T-tests or Wilcoxon matched pair tests as appropriate. A p-value threshold of <0.05 or a confidence interval not including zero will be considered as statistically significant. Analyses will be performed according to the intention to treat principle.
Pulmonary Hypertension (PH) is a condition caused by high blood pressure in the blood vessels that carry blood to the lungs. It can cause severe breathlessness and failure of the right side of the heart. Sadly it is often fatal, and life expectancy ranges from months to years. For some subtypes of PH, effective treatments exist which can improve life expectancy and quality-of-life. Accurate tools for the assessment of PH are therefore essential so that life-saving medications can be started earlier. In existing diagnostic pathways, evidence for the suspicion of PH is frequently overlooked, significantly delaying the time to diagnosis. Echocardiography (echo) is a quick, safe and well-tolerated test requested to investigate breathless patients, and which can provide useful information about the suspicion of PH. However, outside of specialist PH centres, doctors may not routinely look for and comment on the presence of clues to possible PH. The investigators think that using Artificial Intelligence (AI) techniques to read echo's could make their interpretation faster and more reliable. There may also be subtle clues to the presence or severity of PH on echo, less recognisable to the human eye, which AI can identify. In this study the investigators will gather echo images from 5 specialist PH hospitals across the UK which have all been anonymised (patient's name and personal details removed). These will all be historic scans (i.e. have already taken place) and will be grouped into those with PH present (including PH sub-type) or absent. These anonymised echo images will be used to develop and train an AI tool to identify scans where PH is present, including which specific type of PH may be present. The developed AI tool will then be tested on a separate group of scans (not used in the training stage) to validate its performance.
CHina Registry for the chAracteristics and Management strategieS of patiEnts With Pulmonary Hypertension Using Targeted Therapy (CHASE Study)
Study LTI-401 is an open-label, multicenter study which will evaluate the safety and tolerability of LIQ861 in subjects who have WHO Group 1 & 3 PH.
In this study, the investigators aim to describe the hemodynamic consequences of nasal high-flow measured during right heart catheterization and echocardiography. The research hypothesis is that nasal high-flow would increase cardiac output in patients with pulmonary hypertension. The concomitant echocardiography will allow to describe its sensibility to detect cardiovascular consequences of nasal high-flow.
The main aim of this project is to elucidate the incidence of acute kidney injury (AKI) in newborns with congenital diaphragmatic hernia during stay in the Pediatric intensive care unit. (PICU). This patient group often presents with severe circulatory and respiratory dysfunction requiring intensive care treatment. Characterization of risk factors to AKI will also be performed.
This study aims to assess the application of the novel IMPULSE algorithm for the detection of pulmonary hypertension (PH) in those with a low or intermediate probability of PH according to the British Society of Echocardiography (ESC) and European Society of Cardiology (ESC) guidelines.
To identify Predictors of pulmonary hypertension in COPD patients and its relation to different levels of smoking
The study aims to describe the clinical characteristics and clarify the predictors of the short- and long-term outcomes of RHF patients, further assist the diagnosis, risk stratification and treatment of RHF.
The goal of this pilot study is to evaluate the safety and efficacy of pulmonary artery denervation (PADN) in combined post- and pre- capillary pulmonary hypertension (CpcPH) associated with chronic heart failure(CHF). Participants who have received guideline-directed medical therapy (GDMT) according to 2022 AHA/ACC Guidelines for Heart Failure (HF) and have been clinically stable for at least 1 month, will be treated with PADN and followed for 1 year.