Active clinical trials for "Respiratory Distress Syndrome"

Patients suffering from Acute Respiratory Distress Syndrome (ARDS) with a prone position (PP) indication will benefit from measurements of radiological and biological kidney injury markers, intra-abdominal pressure (IAP) and ventilatory mechanics in supine position (baseline IAP), after 2 hours in PP at the current IAP value, thirty minutes after patients' abdomen suspension in order to resume baseline IAP and after patients' are turned back to supine position.

Mechanical ventilation of the patient with acute respiratory distress syndrome is one of the first therapies.

Prone position (PP) has been proved to be effective in severe ARDS patients. On the other hand, High flow nasal cannula (HFNC) may prevent intubation in hypoxemic Acute respiratory failure (ARF) patients. Our hypothesis is that the combination of PP and HFNC in patients with COVID19 induced ARDS may decrease the need of mechanical ventilation. Primary outcome: Therapeutic failure within 28 days of randomization (death or intubation). Secondary outcomes: to analyze PP feasibility and safety in HFNC patients and to analyze effectiveness in terms of oxygenation. Methods: multicentric randomized study including patients with COVID19 induced ARDS supported with HFNC. Experimental group will received HFNC and PP whereas observation group will received standard care. Optimization of non-invasive respiratory management of COVID19 induced ARDS patients may decrease the need of invasive mechanical ventilation and subsequently ICU and hospital length of stay.

Pulmonary distension induced by mechanical ventilation physiologically alters right ventricle pre and after-load, hence might lead to right ventricle failure. The hypothesis is that in Acute Respiratory Distress Syndrome, the occurence of a right ventricle failure under lung protective ventilation might : i) be correlated to the transpulmonary pressure level, ii) lead to global heart failure, iii) and extremely result in poor outcome and death. The primary objective is to test the impact of transpulmonary pressure on right ventricular function in Acute Respiratory Distress Syndrome in adults and children. Secondary objectives are : i) to compare thresholds of transpulmonary pressure associated with right ventricle failure between children and adults. ii) to assess if there is an association between transpulmonary pressure and morbidity and mortality. - For pediatric patients, a specific monitoring with electrical impedance tomography (EIT) will allow: To assess if the transpulmonary pressure is associated with the level of regional pulmonary overdistention (or collapse) on electrical impedance tomography.(EIT) To assess if there is an association between the occurrence of right ventricular failure, and distribution of ventilation on EIT.

During the past two decades, there current concept has evolved significantly that ventilator-induced lung injury (VILI) may not only impose a direct mechanical stress and subsequent injury to the lungs, but may also induce local as well as systemic inflammation responses, generally referred as biotrauma.1 Patients with ARDS often die of severe systemic inflammatory response syndrome (SIRS) and multiorgan dysfunction2 rather than refractory hypoxemia. Ranieri et al found that patients with less severe ARDS, i.e., a lung injury score of 2.5 or less, receiving ventilation with lung protective strategy involving low tidal volume (7.5 mL/kg PBW) and high PEEP could attenuate the pulmonary and systemic cytokine response compared with conventional ventilation with high tidal volume.3 Stuber et al found an increase in pro-inflammatory cytokines in the lung and plasma of patients with ARDS within 1 hour after switching the patients from a protective to non-protective ventilator strategy.4 The receptor for advanced glycation end-products (RAGE) was recently identified as a marker of injury to the alveolar type I epithelial cells5. Clinical studies showed that the plasma level of RAGE was associated with severity of lung injury and clinical outcome, and low tidal volume strategy ventilation accelerated the decline in plasma RAGE levels. These results suggest plasma RAGE level might be a reliable biomarker of alveolar epithelial injury in acute lung injury and may associated with ventilator induced lung injury6. Although, current approach to mechanical ventilation of a patient with ARDS emphasizes the use of lower tidal volumes with lower plateau pressures to avoid causing lung overdistension and ventilator associated lung injury (VILI)7; however, in the real world, some studies showed that strictly reduction of tidal volume to 6ml/kg PBW was modest in modern time, and was noticed only in patients with greater lung injury scores8. The benefit of VT strictly reduction to 6ml/kgPBW and its effect on VILI in patients with less severe ARDS whose Pplat are already below 30 cmH2O are controversy9. One of the possible solutions is to look at the biomarkers of injury to alveolar epithelial cells. Of these potentially promising markers, the receptor for advanced glycation end-product (RAGE) is of great interest. We hypothesize that a strategy with strict low tidal volume in less severe ARDS and ALI patients with good compliance may be beneficial to this patient population. Therefore, we wish to propose a prospective single-center study to investigate the effect of mechanical ventilation strategy on the plasma level of RAGE in patients with less severe ARDS and acute lung injury.

Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a severe lung condition that causes respiratory failure. Individuals with ALI/ARDS often require the use of a respirator or artificial breathing machine, known as a mechanical ventilator, while in an intensive care unit (ICU). Research has shown that lung protective ventilation (LPV), a type of mechanical ventilation technique, is an effective way to reduce the number of deaths due to ALI/ARDS. This study will evaluate the effectiveness of a Web-based educational program that aims to educate ICU clinicians about the use of LPV in patients with ALI/ARDS.

Animal experimentals have shown that the more physiology-driven airway pressure release ventilation (APRV) methodologies in ARDS may significantly improve alveolar recruitment and gas exchange, increased homogeneity, and attenuate lung injury, without circulatory depression, as compared with conventional low tial volume lung protective ventilation. our previous single centre,random control study showed that clinical benefit for early use of APRV in ARDS. Nonetheless, clinical data on ARDS are still limited, most of them derived from small clinical trials in which variable outdated APRV settings were used, consequently, the findings of these studies were controversial. Additionally, the previous single-centre,random control study showed that clinical benefit for APRV.Therefore,the investigators are ready to design a multiple centres,random control study to further verify the effect of APRV plus protocol in ARDS.

In this study the investigators intend to assess the feasibility of surfactant administration via a thin catheter using a specially adapted video laryngoscope, with a groove designed to allow insertion of an endovascular catheter without the use of other instruments in the oral cavity (forceps ect.). The laryngoscope is of Peak Medic Ltd, Netania, Israel.

This study aims at assessing the short-term physiological effects of 2 positive end expiratory pressure titration strategies in patients with ARDS.

Although positive end-expiratory pressure (PEEP) has been widely used in mechanical ventilated patients with acute respiratory distress syndrome (ARDS), how to select the "optimal" PEEP is far from consensus. The application of PEEP may result in beneficial effect by recruiting previously collapsed lung areas, harmful effect by over-distending previously aerated lung areas, or a combination of the both. The net effect of PEEP in a certain patient may depend on the recruitability. Because recruitability varies extremely in ARDS patients and strongly correlates with the response to PEEP, estimation of end-expiratory lung volume (EELV) may be essential for individualized setting of PEEP. Whether the FRC changes at different PEEP levels remains unknown.