Active clinical trials for "Acute Lung Injury"

Severe hypoxemia following trauma may happen in many circumstances (aspiration, ventilation-associated pneumonia, lung contusion...), most of which are not exclusively associated with a direct injury to the lungs. Severe trauma and associated musculoskeletal injuries result in the acute release of Damage-Associated Molecular Patterns (DAMPs) in plasma, many of which are made of nucleic acids. DAMPs then bind leukocytes and trigger NETosis (Neutrophil Extracellular Traps), the release of nuclear material coated with proteolytic enzymes, which ultimately promotes remote lung injury and acute respiratory distress syndrome (ARDS). Considering that many DAMPs and all NETs are made of nucleic acids, we hypothesize that dornase alfa, a commercially available recombinant desoxyribonuclease (DNAse) could reduce DAMPs and NETs-induced lung injury in severe trauma patients under mechanical ventilation in the intensive care unit (ICU). The primary objective is to demonstrate a reduction in the incidence of moderate to severe ARDS in severe trauma patients during the first seven ICU days from 45% to 30% by providing aerosolized dornase alfa once during the first two consecutive ICU days and compared to equivalent provision of placebo (NaCl 0,9%). The secondary objectives are to demonstrate, by using aerosolized dornase alfa compared to placebo: an improvement in static lung compliance a reduction in mechanical ventilation duration / an increase in ventilation-free ICU days a reduction in the length of ICU stay a reduction in the hospital length of stay a reduction in multi-organ failure a reduction in ventilator-associated pneumonia (VAP) a reduction in mortality at day 28

Treatment of acute respiratory distress syndrome (ARDS) relies on invasive mechanical ventilation with supposedly protective settings (low tidal volume ventilation). Mortality of ARDS remains high in observational studies (40 to 50%). Approximately 30% of ARDS patients exhibit tidal hyperinflation despite low tidal volume ventilation, suggesting that personalization of tidal volume is required to improve ARDS prognostic. To date, reliable bedside tools to adjust tidal volume are lacking. Excessive tidal volume can be detected using computed tomography by quantification of tidal hyperinflation, but this technique is reserved to research studies and requires patient transport to imaging facility. Mechanical ventilation generates cardio-pulmonary interaction, whose magnitude is influenced by tidal volume and respiratory system characteristics. Pulse pressure variation is a bedside tool with potential to quantify cardio-pulmonary interactions. Increasing tidal volume will decrease right ventricular preload and increase right ventricular afterload, hence maximizing cardio-pulmonary interactions. The investigators hypothesize that pulse pressure variation might help to detect excessive tidal volume during a tidal volume challenge (i.e. stepwise increase in tidal volume)

Right ventricular failure may be associated with mortality in patients with acute respiratory distress syndrome (ARDS). Mechanical ventilation may promote right ventricular failure by inducing alveolar overdistention and atelectasis. Electrical impedance tomography (EIT) is a bedside non-invasive technique assessing the regional distribution of lung ventilation, thus helping titrating positive end-expiratory pressure (PEEP) to target the minimum levels of alveolar overdistension and atelectasis. The aim of this physiologic randomized crossover trial is to assess right ventricular size and function with transthoracic echocardiography with different levels of PEEP in adult patients with moderate-to-severe ARDS undergoing controlled invasive mechanical ventilation: the level of PEEP determined according to the ARDS Network low PEEP-FiO2 table, the PEEP value that minimizes the risk of alveolar overdistension and atelectasis (as determined by EIT), the highest PEEP value minimizing the risk of alveolar overdistension (as determined by EIT), and the lowest PEEP level that minimizes the risk of alveolar atelectasis (as determined by EIT). Our findings may offer valuable insights into the level of PEEP favoring right ventricular protection during mechanical ventilation in patients with ARDS.

The objective of this study was to investigate the hemodynamic effects of two alveolar recruitment maneuver strategies in critical care patients with acute respiratory distress syndrome.

The aim of this study is to evaluate the efficacy of dexamethasone in hospitalized adults with COVID-19 pneumonia who do not require supplementary oxygen on admission, but have high risk of developing acute respiratory distress syndrome (ARDS). This is a prospective, multicenter, phase 4, parallel-group, randomized and controlled trial that is open-label to investigators, participants and clinical outcome assessors. Eligible participants include adults (age 18 years or older), diagnosed with SARS-CoV-2 infection, evidence of infiltrates on chest radiography or computerized tomography, peripheral capillary oxygen saturation ≥94% and 22 breaths per minute breathing room air, and high risk of developing ARDS defined by a lactate dehydrogenase higher than 245 U/L, C-Reactive Protein higher than 100 mg/L, and absolute lymphocytes lower than 800 cells/µL. Eligible participants will meet two of the three before analytical criteria associated with severe COVID-19. Patients will provide written informed consent. Exclusion criteria include patients with a history of allergy to dexamethasone, pregnant or lactating women, oral or inhaled corticosteroids treatment within 15 days before randomization, immunosuppressive agent or cytotoxic drug therapy within 30 days before randomization, neutropenia <1000 cells/µL, human immunodeficiency virus infection with CD4 cell counts <500 cells within 90 days after randomization, dementia, chronic liver disease defined by ALT or AST ≥5 times the upper limit of normal, chronic kidney injury defined by a glomerular filtration rate ≤30 ml/min, hemodialysis or peritoneal dialysis, uncontrolled infection, and patients who are already enrolled in another clinical trial. Study participants will be randomized in a 1:1 ratio to receive dexamethasone base 6 mg once daily for seven days or standard of care. The primary endpoint is to prevent of development of moderate ARDS. Based on the Berlin criteria, moderate ARDS is defined by a PaO2/FiO2 ratio >100 mmHg and ≤200 mmHg. Study participants will be randomized in a 1:1 ratio to receive dexamethasone versus standard of care using a randomization platform. Included participants will be hospitalized at the time of randomization. The study will be undertaken at Infanta Leonor-Virgen de la Torre University Hospital, Enfermera Isabel Zendal Emergency Hospital, and Infanta Cristina Hospital, Madrid, Spain.

This is a randomized, double-blind, placebo controlled, multicenter study to compare the efficacy and safety of L-citrulline versus placebo in patients undergoing surgery for congenital heart defects. Eligible patients undergoing repair of a large unrestrictive ventricular septal defect (VSD), a partial or complete atrioventricular septal defect (AVSD), or an ostium primum atrial septal defect (primum ASD) will be eligible for enrollment.

The incidence of chest CT manifestations of lung injury after radiotherapy for breast cancer is more than 50%. Although the prognosis and quality of life of patients are rarely affected, it is still necessary to prevent the occurrence of minor radiation lung injury with the use of more novel drugs and subsequent salvage treatment may aggravate the radiation injury. This study intends to conduct a randomized, double-blind, single-center clinical study of pirfenidone versus placebo in the prevention of acute radiation induced lung injury after breast cancer surgery

Preterm infants are randomized to received either Intra-tracheal instillation of budesonide using surfactant as vehicle or a placebo. Intra-tracheal instillation of budesonide using surfactant as vehicle would facilitate its delivery to the periphery of the lung and would inhibit lung inflammation and mitigate acute lung injury.

In patients with acute hypoxemic respiratory failure whose diagnosis is not established after initial evaluation, obtaining a histopathological diagnosis may improve the patients' prognosis. In our previous retrospective-controlled study, transbronchial lung cryobiopsy (TBLC) can lead to an increased chance of establishing a diagnosis compared with transbronchial lung biopsy (TBLB), with an acceptable safety profile. Therefore, further prospective randomized controlled studies exploring whether TBLC leads to improved prognosis for such patients are warranted.

The purpose of this pilot study is to measure the impact of non-invasive pneumatic manipulation of transthoracic pressure on oxygenation in patients with Acute Respiratory Distress Syndrome (ARDS) due to Coronavirus Disease 2019 (COVID 19) who are on mechanical ventilator support. This will be achieved by a pneumatic Vest placed around the chest wall of consenting patients who meet inclusion criteria. The Vest is essentially a non-invasive segmental device placed upon the anterior and posterior right and left aspects of the chest wall. The researchers have the ability to inflate and deflate the chambers of the Vest to achieve preset pressures as determined by the protocol and observe the patient's physiological response. Participants will have up to four hours of intervention with the study intervention, followed by 1 hour of post-intervention observation.