Articles: mechanical-ventilation.
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J Intensive Care Med · Aug 2018
ReviewAccuracy and Applications of Lung Ultrasound to Diagnose Ventilator-Associated Pneumonia: A Systematic Review.
Lung ultrasound (LUS) is an accurate tool to diagnose community-acquired pneumonia. However, it is not yet an established tool to diagnose ventilator-associated pneumonia (VAP). ⋯ Small subpleural consolidations and dynamic air bronchograms were the most useful sonographic signs to diagnose VAP in suspected patients. Clinical scores including LUS had better diagnosis accuracy than LUS alone. There are no data on LUS for VAP screening.
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Poor synchrony between the delivery of mechanical breaths, the neural respiratory timing, and needs of patients is relatively frequent under mechanical ventilation in the intensive care unit. This review summarizes the current knowledge on the different types of dyssynchrony described to date, their mechanism, consequences, and potential management. There is still a long way to get to a comprehensive knowledge and uncertainties remain. Ongoing research and development of monitoring tools are urgently needed to allow a better appraisal of this area in a near future.
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Critical care clinics · Jul 2018
ReviewDeterminants and Prevention of Ventilator-Induced Lung Injury.
Ventilator-induced lung injury develops from interactions between the lung parenchyma and applied mechanical power. In acute respiratory distress syndrome, the lung is smaller size with an inhomogeneous structure. ⋯ Volutrauma and atelectrauma harms and benefits, however, seem to be equivalent at 5 to 15 cm H2O. At values greater than 15 cm H2O, the risk of damage outweighs the benefits of major atelectrauma prevention.
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Extracorporeal gas exchange is increasingly used for various indications. Among these are refractory acute respiratory failure, including the acute respiratory distress syndrome (ARDS), and the avoidance of ventilator-induced lung injury (VILI) by enabling lung-protective ventilation. ⋯ These indications are based on a reasonable physiologic rationale but must be weighed against the costs and complications associated with the technique. This article summarizes current evidence and indications for extracorporeal gas exchange.