View clinical trials related to Lung Injury.
Filter by:The purpose of this study is to explore the effectiveness of lung-protective ventilation during general anesthesia for neurosurgical procedures on postoperative pulmonary outcome, compared with traditional ventilation.
The use of positive end-expiratory pressure (PEEP) has been shown to prevent the cycling end-expiratory collapse during mechanical ventilation and to maintain alveolar recruitment, keeping lung portions open, increasing the resting end-expiratory volume. On the other hand PEEP may also overdistend the already open lung, increasing stress and strain. Theoretically high frequency oscillatory ventilation (HFOV) could be considered an ideal strategy in patients with ARDS for the small tidal volumes, but the expected benefits have not been shown yet. PEEP and HFOV should be tailored on individual physiology. Assuming that the esophageal pressure is a good estimation of pleural pressure, transpulmonary pressure can be estimated by the difference between airway pressure and esophageal pressure (PL= Paw - Pes). A PL of 0 cmH2O at end-expiration should keep the airways open (even if distal zones are not certainly recruited) and a PL of 15 cmH2O should produce an overall increase of lung recruitment. The investigators want to determine whether the prevention of atelectrauma by setting PEEP and mPaw to obtain 0 cmH2O of transpulmonary pressure at end expiratory volume is less injurious than lung recruitment limiting tidal overdistension by setting PEEP and mPaw at a threshold of 15 cmH2O of transpulmonary pressure. The comparison between conventional ventilation with tidal volume of 6 ml/Kg and HFOV enables us to understand the role of different tidal volumes on preventing atelectrauma and inducing lung recruitment. The use of non-invasive bedside techniques such as lung ultrasound, electrical impedance tomography, and transthoracic echocardiography are becoming necessary in ICU and may allow us to distinguish between lung recruitment and tidal overdistension at different PEEP/mPaw settings, in order to limit pulmonary and hemodynamic complications during CMV and HFOV.
The purpose of this study is to validate results from a related trial (NCT01791257) and to compare the profile of microRNA in blood from patients suffering subarachnoid hemorrhage with and without systemic complications.
This study plans to learn more about people who are sick in the hospital with a lung infection, or respiratory failure. Respiratory failure, or severe lung failure, is a life-threatening disease. When it happens, the lungs have trouble carrying out their normal function of getting oxygen into the blood, and removing carbon dioxide from the body. Investigators are conducting this study to see what drinking too much alcohol, using tobacco products, or using drugs (both legal and illegal) may do to lung infections and respiratory failure. Subjects are asked to be in this research study because they are thought to have a lung infection and may also have respiratory failure. Alcohol, tobacco, and drug use have been linked to lung infections, respiratory failure, and even death, but the reasons for this aren't known. People who use unhealthy amounts of alcohol, tobacco, and or drugs may be more at risk for lung infections, and for severe complications due to lung infection. Subject participation is important whether or not you use alcohol and or drugs.
The purpose of the study is to assess the time, dose dependence, and fraction-size dependence of radiation (RT)-induced changes in regional lung and heart perfusion/function/structure following thoracic RT delivered using newer IMRT/conformal/radiosurgery techniques. The PI hopes to develop models to better relate and predict RT-induced changes in regional lung and heart perfusion/function/structure with changes in global cardiopulmonary function. Patients will undergo pre- and serial post-RT lung and heart assessments to better understand RT-induced regional heart/lung changes.
Respiratory disorders are the leading cause of respiratory failure in children. Thousands of children are admitted to a pediatric intensive care unit each year and placed on mechanical ventilators. Despite over 40 years since the first pediatric-specific ventilator was designed, there has been no specific cardiopulmonary directed therapy that has proven superior. While mechanical ventilation is generally lifesaving, it can be associated with adverse events. There is evidence building to suggest that adopting a lung protective ventilation strategy by the avoidance of lung over-distension and collapse reduces death. Therefore, timely discovery of these two lung conditions is extremely important in order to mitigate the effects associated with positive pressure mechanical ventilation. The investigators research team has extensive research experience with a non-invasive and radiation free medical device called electrical impendence tomography (EIT). EIT is intended to generate regional information of changes in ventilation. Meaning it can detect this collapse and overdistension. This additional source of information could help fine tune the mechanical ventilator. A baseline of understanding of how often this occurs in the patients the investigators serve is required. Therefore the investigators propose an EIT observation study in their pediatric ICU patient population.
Lung injury in patients undergoing oesophagectomy may occur during surgery (peri-operatively) as a result of One Lung Ventilation (OLV) and/or during the immediate post-operative period when patients receive intensive care. This is reinforced by the observation that physiological markers of lung injury are most elevated immediately after completion of surgery, and the development of clinical Acute Respiratory Distress Syndrome (ARDS)occurs immediately post-operatively (within 72 hours of surgery), with the majority of cases reported 24-48 hours after completion of surgery. This study is designed to investigate the impact of pre-operative administration of GSK2862277 on biological and physiological markers of lung injury in patients undergoing surgical resection of oesophageal cancer in order to achieve optimal exposure at the site of injury following OLV and lung deflation. This study is a randomized placebo controlled, double-blind, multi-centre, single dose parallel group, design. There will be two treatment groups comprising one active and one placebo arm with approximately 40 patients per group. Patients enrolled in the study will be scheduled to undergo planned/elective trans-thoracic surgery for oesophagectomy. The primary endpoint for this study is the change in pulmonary vascular permeability index (PVPI) from pre-surgical levels to the end of surgery. GSK2862277 will be administered as an orally inhaled aerosol (single nebulized dose) over approximately 3 to 5 minutes (min) 1-3 hours prior to surgery. Subject will be monitored daily until discharge and followed up till day 28.
Patients with mechanical ventilation have shown improved weaning rates when enteral tube feeding high in EPA, GLA and antioxidants were fed to patients in the critical care setting. LTAC Patients on chronic mechanical ventilation will have decreased days an mechanical ventilation, decreased mortality rates and decreased organ failure when fed an enteral product high in EPA, GLA and antioxidants compared to an isotonic high fiber enteral nutrition product.
Efforts to identify circulating factors that predict severity of acute lung injury/acute respiratory distress syndrome（ALI/ARDS） patients is unrevealing. The primary purpose of this study is to verify our hypothesis that soluble CD74 might be a potential novel ALI/ARDS biomarker.
To evaluate safety and efficacy using decidual stromal cell therapy for toxicity and inflammation, with special focus on allogeneic hematopoietic cell transplantation patients. The hypothesis to be tested is that the cells are safe to infuse and that they have an anti-inflammatory and healing effect.