Active clinical trials for "Acute Lung Injury"

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.

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.

The goal of this study is to evaluate the sensitivity and specificity of Electrical Impedance Tomography (EIT) as a bedside diagnostic tool for lung pathologies in patients who are mechanically ventilated. In electrical impedance tomography low amplitude, low frequency current is applied on electrodes, and the resulting voltage is measured and used to computed the electrical properties of the interior of the chest as they change in time. The computed properties are used to form an image, which can then be used for monitoring and diagnosis.

This project aims to develop software models describing how critically ill patients respond to changes in their treatment whilst admitted to an Intensive Care Unit (ICU). We will use high performance computers to fit software models to the physiological and treatment data of patients receiving mechanical ventilation.

Mechanical ventilation in ARDS requires protective ventilation and PEEP. Airway closer has to be overcome to reduce lung heterogeneity, AOP is measured globally with a ventilator PV curve without PEEP. EIT derived PV curve is another method that could determine heterogeneity of AOP between both lung. This study aims to determine whether AOP measured with EIT derived PV curve is similar to AOP on the ventilator PV curve and see if AOP is different between lungs. If airway closer is higher on one lung, global AOP on the ventilator PV curve probably estimates the other lung.

Acute respiratory distress syndrome (ARDS) is a syndromic definition of an acute lung injury with alteration of biomechanics (lower respiratory system compliance) mostly associated with increased lesional edema. Increase in Pulmonary Vascular Permeability Index (PVPI) accompanied with accumulation of excess Extravascular Lung Water (EVLW) is the hallmark of ARDS. In routine clinical practice, the investigators measure the EVLW and PVPI in ARDS patients, as suggested by expert's recommendations, using a transpulmonary thermodilution (TPTD) technique. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a newly recognized illness that has spread rapidly throughout Wuhan (Hubei province) to other provinces in China and around the world. Most critically ill patients with SARS-CoV-2 will present the criteria for the definition of ARDS. However, many of these patients have a particular form of ARDS with severe hypoxemia often associated with near normal respiratory system compliance. This combination is almost never seen in severe ARDS. Thus other mechanisms (including probably vascular mechanisms), that are still poorly described, have to be involved in SARS-CoV-2. EVLW and PVPI have never been assessed in SARS-CoV-2 mechanically ventilated patients. The aim of this study is to evaluate these two parameters in order to best characterize and understand the mechanisms related to SARS-CoV-2. Based on observation of several cases in intensive care units (ICU), the investigators hypothesize that there are following different SARS-CoV-2 patterns: Nearly normal compliance, low lung recruitability, normal EVLW and low PVPI. Low compliance due to increased edema, high lung recruitability, high EVLW and high PVPI.

Mechanical power (MP) and ventilatory ratio (VR) are variables associated with outcomes in patients with acute respiratory distress syndrome (ARDS). In respiratory setting, the optimization of MP should lead to an increase in VR. Therefore, the objectives of this study are: to assess the relationship between MP and VR and to compare the components of MP (ventilatory variables) according to a level of MP (17 J/minute) considered harmful.

This is a prospective observational study using a mobile study platform (app) that is designed for use on Android phones. Study participants will provide baseline demographic and medical information and report symptoms of respiratory infection on a weekly basis using the app. Participants will also report use of prevention techniques on the weekly survey. Mobility data will be collected passively using the sensors on the participant's smartphone, if the participant has granted the proper device permissions. The overall goals of the study are to track spread of coronavirus-like illness (CLI), influenza-like illness (ILI) and non-specific respiratory illness (NSRI) on a near-real time basis and identify specific behaviors associated with an increased or decreased risk of developing these conditions.

The investigator would assess if there is an incremental energy load during mechanical ventilation in Acute Respiratory Distress Syndrome (ARDS) patients.

This is a prospective observational study done to know the etiology and outcomes of Acute Respiratory Distress Syndrome.