Active clinical trials for "Lung Injury"

To assess the safety and efficacy of noninvasive positive pressure ventilation for patients with intro-pulmonary pulmonary acute lung injury and compare this with high-concentration oxygen therapy.

The purpose of this study is to collect physiologic data from patients with severe brain injury who require mechanical ventilation in order to describe the impact of ventilation, specifically positive end expiratory pressure (PEEP), on intracranial pressure (ICP).

Acute lung injury (ALI) is the vital complication of Stanford type A aortic dissection. It is confirmed that Xenon has the significant protective effect on important organs and has no suppression on the cardiovascular system. Furthermore, our earlier trial has already clarified that static inflation with 50% Xenon during cardiopulmonary bypass could attenuate ALI for Standford A acute aortic dissection. However the protection effect was restricted for the limited time. Aimed to enhance the protection effect of Xenon, we designed this randomized trial that anesthesia with 50% xenon one hour before and after CPB and pulmonary static Inflation with 50%,75% and 100% Xenon during CPB respectively.

Primary Graft Dysfunction (PGD) respresents the leading cause of mortality in early post-operative period of Lung Tranplantation (LTx). Protective ventilatory strategy could potentially reduce the risk of PGD in these patients. Neurally Adjusted Ventilatory Assist (NAVA) is an assisted ventilation mode that could allow to adopt this strategy. Aim of the study is to assess the feasibility of NAVA in the early post-LTx phase and to describe the breathing pattern and the physiological relationship between neural respiratory drive and different levels of ventilatory assist, in the absence of pulmonary vagal afferent feedback.

The primary objective of the study is to evaluate the days until reaching clinical stability after starting randomization in hospitalized patients with elevated inflammatory parameters and severe COVID-19 lung injury.

COVID-19 is impacting on health systems in Brazil and worldwide. Reducing the risk of clinical deterioration and prolonged disease duration in hospitalized patients with COVID-19 may alleviate the burden caused by the pandemic. Melatonin (N-acetyl-5-methoxytryptamine) has demonstrated antiapoptotic, antioxidative, and anti-inflammatory roles and has been suggested as a potential protector against organ injuries and even mediate lower mortality rates after polymicrobial sepsis in animal models. Melatonin agonists may modulate protective effects against acute lung injury and play a clinical role in individuals with SARS-CoV-2 infection. The investigators proposed a clinical trial testing the effects of ramelteon 8mg in hospitalized patients with COVID-19.

Scientific background. Dysregulated systemic inflammation is a key pathogenetic mechanism for morbidity and mortality in ALI/ARDS, and is associated with tissue insensitivity and/or resistance to inappropriately elevated endogenous glucocorticoids. In one study, prolonged methylprednisolone treatment of ARDS patients resulted in rapid and sustained reduction in circulating and pulmonary levels of pro-inflammatory cytokines, chemokines, and procollagen. Preliminary work. Five randomized trials (N = 518) investigating prolonged glucocorticoid treatment in acute lung injury/ARDS reported a significant physiological improvement and a sizable reduction in duration of mechanical ventilation and ICU length of stay. Insufficient data is available on the effects of low dose prolonged methylprednisolone treatment initiated in early ALI/ARDS on mortality. Hypothesis. We hypothesized that the anti-inflammatory activity associated with prolonged methylprednisolone administration improves pulmonary and extra-pulmonary organ dysfunction in early ALI/ARDS and reduces mortality. Objective. To investigate the effects of prolonged low-dose methylprednisolone infusion on mortality and morbidity in early ALI/ARDS. Study design. Multicenter, prospective randomized, placebo-controlled, double-blind clinical trial. Entry criteria. Patients with ALI/ARDS of less than 72 hours duration. Stratification. Patients are prospectively stratified prior to randomization as (1) intubated versus NPPV treated, and (2) ARDS versus severe ARDS. The purpose of stratification is to distribute equally in both arms intubated versus NPPV treated, and ARDS versus severe ARDS. End-points. The primary end-point of trial is 28 days all cause mortality; the secondary end-points are (a) ventilator-free days at 28 days following study entry, (b) organ failure-free days at 28 days following study entry, and (c) duration of ICU stay.

This research aims to assess the use of an experimental and non-invasive procedure, Remote Ischemic Conditioning (RIC), as an adjunct therapy in attenuating severe COVID-19 disease. An excessive and counterproductive systemic inflammatory response is thought to be a major cause of severe disease and death in patients with COVID-19. Severe ICU cases frequently have markedly higher levels of inflammatory markers such as CRP, IL-6, IL and TNF-a; which is thought to be correlated with increasing disease severity. The relationship between dysregulated inflammatory processes and disease states such as acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are well understood. ALI is characterized by an acute exaggerated mononuclear/neutrophilic inflammatory response followed by progressive collagen deposition in the lung, and if severe enough, may progress to ARDS requiring ventilation.

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.

Acute lung injury (ALI) is caused by a wide variety of conditions, but always characterized by hypoxia and non-cardiogenic pulmonary edema. Current treatment of ALI is supportive and treatment of the underlying cause. New therapies to treat severe ALI have not been shown to improve survival, and are limited by financial and logistical resources. The investigators propose to investigate the role of inhaled sodium nitroprusside (iSNP) in ALI. Sodium nitroprusside (SNP) is a vasodilator. When inhaled, SNP may travel to areas of the lung participating in gas exchange, and cause the blood vessels surrounding these areas to enlarge. This may result in an increase of blood vessels to these areas of the lung, and improve oxygenation. Currently, iSNP has not been studied in the adult population. Therefore, this study is intended to find the safety profile of varying doses of iSNP.