Articles: mechanical-ventilation.
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J Clin Monit Comput · Jun 2018
Case ReportsMechanical ventilation guided by electrical impedance tomography in pediatric acute respiratory distress syndrome.
Mechanical ventilation strategies in pediatric acute respiratory distress syndrome (pARDS) continue to advance. Optimizing positive end expiratory pressure (PEEP) and ventilation to recruitable lung can be difficult to clinically achieve. This is in part, due to disease evolution, unpredictable changes in lung compliance, and the inability to assess regional tidal volumes in real time at the bedside. Here we report the utilization of thoracic electrical impedance tomography to guide daily PEEP settings and recruitment maneuvers in a child with pARDS.
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Critical care medicine · Jun 2018
Randomized Controlled Trial Multicenter StudyAn Exploratory Reanalysis of the Randomized Trial on Efficacy of Corticosteroids as Rescue Therapy for the Late Phase of Acute Respiratory Distress Syndrome.
In the Acute Respiratory Distress Syndrome Network randomized controlled trial, methylprednisolone treatment was associated with increased return to mechanical ventilation with partial loss of early improvements. We hypothesize a causal relationship between protocol-driven rapid discontinuation of methylprednisolone post extubation and return to mechanical ventilation. To explore this possibility, we investigated the timing that events occurred in each treatment arm during active treatment intervention (efficacy) and after stopping therapy. ⋯ During active intervention, methylprednisolone was safe and effective in achieving disease resolution. Our findings support rapid glucocorticoid discontinuation post extubation as likely cause of disease relapse. Gradual tapering might be necessary to preserve the significant improvements achieved during methylprednisolone administration.
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As seen in this CME online activity (available at http://journal.cme.chestnet.org/copd-hot-hmv), acute exacerbations of COPD are associated with significant levels of morbidity and mortality. Acute noninvasive ventilation has been demonstrated its clinical efficacy and cost-effectiveness in reducing intubation rate and mortality and in patients with acute decompensated hypercapnic exacerbations of COPD. However, those patients with evidence of chronic hypercapnic respiratory failure have worse long-term outcomes compared with patients who have only transient hypercapnia during the acute phase returning to eucapnia in the recovery stage. ⋯ The addition of home noninvasive ventilation to home oxygen therapy in patients with persistent hypercapnia led to improved admission-free survival. The noninvasive ventilation was titrated to overnight measures of transcutaneous CO2 to achieve control of nocturnal hypoventilation, which improved daytime chronic respiratory failure. Home noninvasive ventilation is a complex intervention requiring a multidisciplinary team and long-term patient follow-up to maximize the clinical benefit to the patient.
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Clinical Trial
Influence of xenon on pulmonary mechanics and lung aeration in patients with healthy lungs.
The anaesthetic xenon shows potent organ-protective properties. Due to high density and dynamic viscosity, peak inspiratory pressure (Pmax) increases during xenon application. Thus, barotrauma may counteract organ protection. Accordingly, we investigated the influence of xenon on lung mechanics and lung aeration in patients with normal and reduced thoracic wall compliance. ⋯ NCT02682758.
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Return of spontaneous circulation after cardiac arrest results in a systemic inflammatory state called the post-cardiac arrest syndrome, which is characterized by oxidative stress, coagulopathy, neuronal injury, and organ dysfunction. Perturbations in oxygenation and ventilation may exacerbate secondary injury after cardiac arrest and have been shown to be associated with poor outcome. Further, patients who experience cardiac arrest are at risk for a number of other pulmonary complications. ⋯ Risk factors include aspiration, pulmonary contusions (from chest compressions), systemic inflammation, and reperfusion injury. Early evidence suggests that they may benefit from ventilation with low tidal volumes. Meticulous attention to mechanical ventilation, early assessment and optimization of respiratory gas exchange, and therapies targeted at potential pulmonary complications may improve outcomes after cardiac arrest.