View clinical trials related to Lung Injury.
Filter by:PFCs (perfluorocarbons, PFC), an ideal liquid respiratory media, has special chemical and biological properties, including high solubility of gas, swiftness of carrying and release, low surface tension, high proportion, almost non-absorbing and non-metabolic characteristics in the body. On the basis of the strong animal data suggesting the efficacy of PFC vapor inhalation in models of lung injury, we performed a randomized clinical trial comparing PFC vapor inhalation with conventional mechanical ventilation（CMV）in patients with Acute Lung Injury/Acute Respiratory Distress Syndrome（ALI/ARDS）. The investigators will apply the Invasive Mechanical Ventilation (IMV) to the vaporized perfluorocarbon inhalation, objectively evaluate its curative effect on the acute respiratory distress syndrome, and meanwhile assess the safety of PFC.
The important character of acute lung injury (ALI) is alveolar capillary membrane damage caused by different diseases, such as sepsis, trauma and shock. One of the important pathological stages is the varying degrees of interstitial fibrosis and semi-permeable alveolar membrane fibrosis. It has been proved that CXCL12/SDF-1 (stromal cell-derived factor-1) induces fibrocyte migration, and promotes fibrosis progression. Study indicated that inhibition of TLR4 receptor signaling pathway improves fibrosis progression induced by ALI, however, the role of fibrocyte in ALI is still unclear. The fibrocytes was significantly increased in asthmatic patients with pulmonary fibrosis, which companies with increased CTGF expression. Therefore, this project assumes that fibrocyte will differentiation to fibroblast/myofibroblast in patient with acute lung injury, which in turn leads to progression of fibrosis. The central hypothesis of this project is that peripheral progenitor cell fibrocytes play an important role in alveolitis caused by acute lung injury. The overall objective of this project is to study the role of fibrocytes in acute lung injury.
To investigate whether limb remote ischemic preconditioning (LRIP) has protective effects against intestinal and pulmonary injury in patients undergoing open infrarenal abdominal aortic aneurysm (AAA) repair.
APRV mode of ventilation will result in an improved partial pressure of arterial oxygenation/ fraction of inspired oxygen (P/F ratio) on day 3 of mechanical ventilation. Sub hypotheses: APRV will be associated with a reduced amount of sedation used during the ICU stay in patients with respiratory failure. APRV will be associated with a reduction in the amount of vasoactive medication used for blood pressure support in patients with respiratory failure.
To evaluate whether administration of ganciclovir reduces serum IL-6 levels (i.e. reduction between baseline and 14 days post-randomization) in immunocompetent adults with severe sepsis or trauma associated respiratory failure. Primary Hypotheses: - In CMV seropositive adults with severe sepsis or trauma , pulmonary and systemic CMV reactivation amplifies and perpetuates both lung and systemic inflammation mediated through specific cytokines, and contributes to pulmonary injury and multiorgan system failure, AND - Prevention of CMV reactivation with ganciclovir decreases pulmonary and systemic inflammatory cytokines that are important in the pathogenesis of sepsis and trauma related complications.
The purpose of this study in patients suffering from acute lung injury is to determine whether positive end-expiratory pressure (PEEP) setting guided by electrical impedance tomography (EIT) influences pulmonary gas exchange, lung mechanics, ventilation/perfusion matching and homogeneity of regional ventilation when compared to other PEEP setting strategies such as the open lung concept or the ARDSnet protocol.
Elective open aortic aneurysm repair has an overall reported 30 day mortality of 2-6 percent, but in patients more than 65-70 years the mortality is reported to be more than 10 percent. The phenomenon of acute lung injury (ALI)/adult respiratory distress syndrome (ARDS) after infra renal abdominal aneurysm repair caused by ischemia-reperfusion is well established. The degree of disability varies from a light degree of acute respiratory failure to mortality for patients with the same profile of risk. Primary aim is to develop a model that monitors inflammatory marker molecules collected from the bronchial epithelial lining fluid by microdialysis. The method with examination of the bronchial epithelial lining fluid by microdialysis and analysis of multiple inflammation markers as previously done by the investigators group.
Patients with severe lung conditions occasionally require support with a special ventilator (breathing machine) called the High Frequency Oscillator (HFO). Effective ventilation requires that the pressure generated by the ventilator be as high as possible but not too high as this can damage the lungs. In patients on HFO, there is not a well defined way to measure this pressure. We will insert a small probe into the esophagus of patients on HFO to see if this is an accurate way to measure lung pressures for these patients. A better understanding of these pressures could lead to improved patient care.
The aim of the study is to compare, in patients with acute respiratory failure/acute lung injury the efficacy of three different methods of oxygenation to prevent endotracheal intubation : 1. conventional oxygen therapy (O2 conventional) 2. high flow nasal oxygen therapy (O2-HFN) 3. association of high flow nasal oxygen therapy with non invasive positive pressure ventilation (O2-HFN/NPPV).
The purpose of this study is to determine whether ischemic preconditioning reduces lung injury in patients undergoing pulmonary resection.