View clinical trials related to Pulmonary Valve Insufficiency.
Filter by:The Covered Cheatham-Platinum Stent (CCPS) is being study for repair of tears that occur in the pulmonary artery during dilation (enlargement) of a conduit (passageway) connecting the right ventricle of the heart to the pulmonary arteries. Patients undergoing replacement of their pulmonary valve by transcatheter technique Melody Valve) are at risk of developing such tears in the process of preparing the conduit to accept the new valve. In order to implant such a valve, the connection between the right ventricle and the pulmonary arteries often needs to be enlarged. High pressure balloons may be needed and these balloons can sometimes cause tears in or even rupture of the connecting conduit. Such tears can allow blood to flow into the chest and rarely this can lead to a life-threatening emergency. Experience suggests that such tears can be closed by implanting into the conduit a metallic stent with an outer covering, rebuilding the wall and allowing continuation of the valve implant.
The study´s intention is to evaluate the feasibility, safety and effectiveness of a pump driven extracorporeal device for removal of carbon dioxide from the blood in oder to avoid intubation and invasive mechanical ventilation in patients with acute respiratory failure retaining carbon dioxide due to the failure of their ventilatory muscle pump and not responding to prior non-invasive mask ventilation.
Objectives 1. To characterize mechanical ventilation practices during general anesthesia for surgery 2. To assess the dependence of intra-operative and post-operative pulmonary complications on intra-operative Mechanical Ventilation (MV) settings
The purpose of this study is to compare two common methods of providing respiratory support: nasal continuous airway pressure and high flow nasal cannula to see what effect it has on babies breathing. The investigators also will compare the effects of slightly changing the level of support these two different types of therapy on how easily your baby is breathing. Changes in the level of support and between these two respiratory support modalities are frequently done and are part of the routine care in the neonatal intensive care unit.
The purpose of this study is to describe the magnitude of respiratory complications after laparoscopic hysterectomy and cholecystectomy.
The OPTIFLOW ™ use is becoming more common in acute respiratory failure cases, but its place in relation to VNI (Bi-PAP mode) is not yet defined. OPTIFLOW ™ vs the VNI comparison of the use, in the immediate postoperative period, should lead to define the role of each technique and lead to a optimal rationalization of patients management with acute respiratory failure after surgery.
Patients with Chronic Obstructive Pulmonary Disease (COPD) and chronic respiratory insufficiency (CRI) have severe dyspnoea during exercise at low load. Physiological studies performed in these patients during a unique session of training have shown a positive effect on exercise tolerance if non-invasive mechanical ventilation (NIV) was added during incremental effort test or endurance. Menadue and coworkers (2009) have shown in CRI patients with hypercapnia, secondary to COPD or cifoscoliosis, that combination of NIV during arm effort test improved ability to perform the exercise. Similar result was not reached using NIV during walking. Further studies have underlined a positive effect of the ventilation therapy during exercise within specific programs of pulmonary rehabilitation (Corner 2009). Moreover, the addition of NIV to an exercise training (ET) program in COPD patients may produce greater benefits in exercise tolerance and quality of life than exercise training alone (Garrod 2000). A great improvement in health-related quality of life, functional status and gas exchange in COPD patients with chronic hypercapnic respiratory failure with nocturnal NIV compared with patients in pulmonary rehabilitation alone has been also shown by Duieverman (2008). However, in the same study Duieverman did not show any significant difference between groups in terms of tolerance to effort test. Aim of the study is to evaluate if application of daily NIV during physical training may increase the benefits of rehabilitation in CRI patients with nocturnal NIV compared with patients with nocturnal NIV performing training under spontaneous breathing.
Main hypothesis is that Neurally Adjusted Ventilatory Assist (NAVA) allows asynchrony reduction in non invasive ventilation (NIV) in comparison with reference Pressure Support (PSV) mode. The purpose of the protocol is to compare asynchrony rate between periods of pressure support and periods of NAVA.
The study aims to assess 1) the electrical activity of the diaphragm in mechanically ventilated patients during weaning from mechanical ventilation. 2) Whether the electrical activity of the diaphragm may predict the weaning outcome
The aim of the study is to test the hypothesis that an automated algorithm for desired mask pressure improves breathing pattern and sleep quality in patients with hypercapnic ventilatory failure. For this purpose, The investigators will study different groups of patients, including those with obstructive and restrictive ventilatory defect, and obstructive sleep apnoea, non-naive to conventional bi-level positive airways pressure therapy.