View clinical trials related to Pulmonary Valve Insufficiency.
Filter by:In physiological conditions, spontaneous ventilation is controlled by blood carbon dioxide (and pH) levels. In healthy animals, extracorporeal carbon dioxide removal leads to hypoventilation or apnea (Kolobow et al., 1977). During acute respiratory insufficiency, extracorporeal carbon dioxide removal may be used to control spontaneous ventilation, limiting risks of lung damage and relieving dyspnea (Crotti et al., 2012). However, little is known about how spontaneous ventilation changes in response to changes in extracorporeal carbon dioxide removal during acute respiratory insufficiency, especially in humans. Aim of this study is to monitor changes in spontaneous ventilation in awake patients treated with extracorporeal gas exchange support because of acute respiratory insufficiency, in response to changes in extracorporeal carbon dioxide removal.
The purpose of this study is to define the current treatment of patients ospitalized with acute cardiogenic pulmonary edema. Clinical and laboratory data collected in the Emergency Department will used to investigate the primary outcome (mortality) and risk factors related to the primary outcome.
Recruitment manoeuvres, consisting of sustained inflations at high airway pressures, have been advocated as an adjunct to mechanical ventilation in lung protective ventilation strategies to prevent the collapse of the lung. This study aims to determine the safety and efficacy of a recruitment manoeuvre, by considering its impact on gas exchange, hemodynamics and on the release of systemic inflammatory mediators.
The purpose of this study is to determine whether immunonutrition and pre operative nutrition can reduce lenght of respirator support, lenght of stay in the ICU and incidence of post operative infections
Continuous positive airway pressure (CPAP) has been used successfully to promote extubation in the premature infant population. The two methods of CPAP to be examined are currently used by many institutions, yet no study has compared these methods to determine which is better in the population of newborns < 1500 grams (birth weight) at supporting extubation. This randomised controlled study will examine two types of CPAP: the Infant Flow System and the Bubble CPAP. This randomised controlled, single site, clinical study is to determine whether the Bubble CPAP or the Infant Flow System (IFS) CPAP is more effective at supporting the extubation in infants of birth weights < 1500 grams. Seventy-six infants will be randomised, immediately prior to extubation, to IFS or Bubble CPAP of 5 cmH2O. The primary outcome is successful extubation, defined as not reaching failure criteria for the 7 days post-extubation. Failure criteria are defined as pH < 7.25 and PCO2 > 65 mmHg or a sustained increase in FiO2 of 0.15.
- Adequate sedation is of paramount importance to avoid stress and pain in mechanically ventilated patients. It is usually achieved by infusing sedatives (benzodiazepine) and analgesic (opiate) drugs. - This combined sedation may not be sufficient in some instances. - The aim of this study is to evaluate whether addition of a third substance, ketamine, allows the achievement of better sedation and avoids the use of neuromuscular blocking agents.
For children undergoing bone marrow transplantation, respiratory failure is a devastating complication, with mortality expectations well above 60%. The researchers have devised a novel strategy that may greatly improve survival. Hemofiltration, a continuous form of dialysis, was designed as a therapy for critically ill patients with kidney failure. A semi-permeable membrane removes plasma water and solutes (up to about 35,000 Daltons molecular weight). The researchers have treated immuno-compromised children with respiratory failure with hemofiltration. Many inflammatory molecules are of a size well below the limit of the filter. Hemofiltration might remove a critical amount of this inflammatory material, attenuating the unregulated inflammatory response that is central to the development of respiratory failure and progression to multiple organ failure and death. The researchers are conducting a multi-center trial of early continuous hemofiltration for respiratory failure in children following bone marrow transplantation. The researchers will analyze blood and ultrafiltrate using sensitive proteomic methods to detect several inflammatory biochemicals known to be active in this disease, looking for evidence that early active hemofiltration alters the inflammatory response. The researchers will test whether `early` hemofiltration produces greater survival from respiratory failure in this vulnerable population.