View clinical trials related to Weaning Failure.
Filter by:monocentric randomized controlled trial starting from Mars 2017, recruitment is still ongoing. Patients aged between 0-45 days needing mechanical ventilation (MV) with tracheal intubation were included random assignation in two groups for post-extubation management: Group Optiflow (GO) for patients receiving High Flow Nasal Cannula Oxygen Therapy HNFC and Control Group (CG) for conventional treatment. Patients were evaluated during the first 72h following extubation. Primary endpoint was the incidence of reintubation. Secondary endpoints were incidence of post-extubation respiratory failure, time to reintubate and weaning time from oxygen. Respiratory and hemodynamic parameters were assessed and compared between the two groups upon extubation, after 2 hours (H2), at H6, H12, H24, H36, H48 and H72. Length of stay (LOS) and mortality were also estimated.
Based on nutritional support, Cardiopulmonary rehabilitation and Levosimendan Bundle measures, and making beside checklist of patients with difficult ventilator weaning; Implementation of nutritional risk, respiratory function, and cardiac function assessment prior to weaning; Regulate the procedure to solve the problem of difficult-weaning patients with Non neurogenic disease in ICU. Thereby,improve the success rate of weaning patients, so as to shorten the ICU hospitalization time, reduce medical costs, reduce the complications of mechanical ventilation, improve the patient's quality of life.
The aim of our study is to evaluate the efficacy of "60 meters 60 seconds exercise test" (a test designed by the study group) done preoperatively as a predictor test for postoperative intensive care unit need and extubation success in patients undergoing bariatric surgery.
In case of respiratory distress, patients are intubated to be connected to an artificial respirator to ensure gas exchanges. Before any ventilatory weaning, a breathing test in spontaneous ventilation under artificial nose is practiced. The patient keeps the endotracheal tube but is no longer assisted by the ventilator. Mortality is markedly increased with the prolongation of the weaning period. Despite the presence of all weaning criteria and the success of a breathing test in spontaneous ventilation under artificial nose, failure of extubation occurs in 20% of patients. Experimental application of an additional inspiratory load in awake healthy subjects causes a compensatory increase in respiratory work to maintain effective ventilation, and the subject does not develop hypoventilation. This respiratory drive to breathe has been demonstrated by quantified electroencephalography in inspiratory load tests in the form of pre-inspiratory negative deflections of low amplitude similar to the potential described during the preparation of the voluntary movement of a limb. These inspiratory pre-motor potentials begin about 2.5 seconds before the start of a movement in the additional motor area. Does the simple and noninvasive analysis of inspiratory cortical control during the spontaneous ventilation breath test under artificial nose predict the outcome of this test as well as weaning at 7 days?
Prolonged mechanical ventilation secondary to weaning failure demands a significant amount of intensive care unit (ICU) resources, thus increasing the economic burden of public healthcare costs. One of the proposed mechanisms accounting for weaning failure is the concept that excessive work of breathing for weak respiratory muscles during the liberation from mechanical ventilation compromises cerebral blood flow, thereby predisposing the brain to dysfunction. Restriction in brain perfusion could have an adverse impact on the function of the respiratory muscles by impairing the output of the respiratory centre thus promoting respiratory muscle fatigue, leading to weaning failure. Inspiratory muscle training (IMT) has been shown to improve the functional capacity of the inspiratory muscles in patients with respiratory muscle weakness whilst has been recently proposed as a possible additional component of weaning strategies. Therefore, this project aims to identify both a mechanism that might be linked to prolong ICU length of stay and that at the same time might be amenable to treatment.
Making a weaning decision for a patient on a mechanical ventilator is an important clinical issue. The most common index to predict successful weaning is the rapid shallow breathing index (RSBI), however, the accuracy of RSBI to predict successful weaning have been questioned. The investigators proposed a new mathematical model and algorithm, called WIN, which capture the essential feature of the variability ruling the physiological dynamics to provides better perdition to wean than RSBI.
Background: Over one million patients in the US are estimated to undergo mechanical ventilation every year, and approximately 300,000 of them fail attempts at weaning. The morbidity and mortality of these patients is greater than in patients who are successfully weaned. It follows that treatments aimed at reducing the duration of mechanical ventilation have the potential to benefit society both in terms of human suffering and cost. Patients who fail attempts at weaning assist their inspiratory muscles during inhalation by recruiting their expiratory muscles during exhalation. Unfortunately, this recruitment occurs relatively late during a weaning trial. The knowledge that (a) expiratory muscle recruitment can assist inspiration, (b) the recruitment of the expiratory muscles is delayed during weaning, and (c) that the respiratory muscles in patients requiring mechanical ventilation are in a catabolic state raises the possibility that strategies designed to produce an early recruitment, and improve the strength, of the expiratory muscles could improve weaning outcomes in difficult to wean patients. The current investigation, which will be conducted in healthy subjects and in ambulatory patients with chronic obstructive pulmonary disease (COPD) at Edward Hines Jr. VAH (Aims 1 and 2), and in patients who are difficult to wean from mechanical ventilation at RML Specialty Hospital, Hinsdale, IL (Aim 3), has been designed to develop and assess a novel triggering algorithm (VentFree), that controls the delivery of non-invasive neuro muscular electrical stimulation (NMES) to the abdominal-wall muscles during exhalation, and to study the physiological (respiratory) responses to such stimulation in assisting respiration in healthy subjects, in ambulatory patients with COPD and in patients requiring pronged mechanical ventilation.
Levosimendan is a relatively new drug that improves cardiac contractility in patients with heart failure. Its main mechanism of action is enhanced binding of calcium to the myocardial contractile proteins. Recent data from our lab showed that levosimendan improves contractility of human diaphragm in vitro (muscle fibers from COPD patient diaphragm) and in vivo (healthy subjects). Accordingly, levosimendan may appear of value in the treatment of disorders associated with impaired respiratory muscle function, such as mechanically ventilated patients.We hypothesize that levosimendan could improve respiratory muscle function in mechanically ventilated patients commencing a CPAP trial.
Weaning from mechanical ventilator is an essential element in the care of critically ill intubated patients receiving mechanical ventilation. It covers the entire process of liberating the patient from mechanical support and from endotracheal tube. The process of weaning involves two-step strategies: 1. Assessment of readiness for weaning, including physiological measurement, such as maximum inspiratory pressure, tidal volume, respiratory rate and etc. 2. Spontaneous breathing trial. Tracheostomy has become an increasingly common intervention in ICUs, especially for patients with prolonged mechanical ventilator support. Tracheostomy may reduce work of breathing by improving some aspects of pulmonary mechanics, such as reducing dead space and decreasing airway resistance, but to date, there is no evidence that this is linked to reduction in weaning time or length of stay. The investigators believe such improvement in pulmonary mechanic, which may reflect in the weaning parameter that respiratory therapist measured before weaning program, may be different from that measured before tracheostomy creation. The investigators therefore hypothesized that the improvement in pulmonary mechanic for patients with weaning failure after tracheostomy may reflect on weaning parameters, and that this improvement may be able to predict the subsequent successful weaning from mechanical ventilator support. Hereby the investigators perform a prospective single-center study to investigate the changes of weaning parameters in difficult weaning patients after tracheostomy as a predictor of subsequent successful weaning.