نتایج جستجو برای: spontaneous ventilation
تعداد نتایج: 160375 فیلتر نتایج به سال:
Measurements of arterial oxygen and carbon dioxide tension, alveolar ventilation, alveolar to arterial oxygen difference, and ratio of deadspace to tidal volume have been made to show the changes induced by ether/air anaesthesia with spontaneous respiration, with mechanical ventilation, and with mechanical overventilation. There was a disproportionate fall in oxygen tension during spontaneous r...
The increased morbidity and mortality resulting from respiratory failure in patients with neuromuscular disorders and/or kyphoscoliosis can be reversed with non-invasive ventilation. Spontaneous mode bilevel pressure ventilation is preferred to other modes of ventilation, due to relative ease of use, but may not be suitable for all patients. We report a 27-year old woman with Multi-minicore dis...
INTRODUCTION Experimental and clinical studies have shown a reduction in intrapulmonary shunt with spontaneous breathing during airway pressure release ventilation (APRV) in acute lung injury. This reduction was related to reduced atelectasis and increased aeration. We hypothesized that spontaneous breathing will result in better ventilation and aeration of dependent lung areas and in less cycl...
BACKGROUND Recent studies in healthy mice and rats have reported that positive pressure ventilation delivered with physiological tidal volumes at normal end-expiratory volume worsens lung mechanics and induces cytokine release, thus suggesting that detrimental effects are due to positive pressure ventilation per se. The aim of this study in healthy animals is to assess whether these adverse out...
A 2-h T-tube trial of spontaneous breathing was used in selecting patients ready for extubation and discontinuation of mechanical ventilation. However, some doubt remains as to whether it is the most appropriate method of performing a spontaneous breathing trial. We carried out a prospective, randomized, multicenter study involving patients who had received mechanical ventilation for more than ...
To the Editor:—I read with interest the study by Jaber et al. and the accompanying editorial by Tantawy and Ehrenwerth regarding pressure-support ventilation (PSV). The Jaber study is noteworthy for documenting that the performance of PSV using modern anesthesia ventilators approaches the performance of an intensive care unit ventilator. The editorial correctly indicates that the testing was no...
To the Editor:—I read with interest the study by Jaber et al. and the accompanying editorial by Tantawy and Ehrenwerth regarding pressure-support ventilation (PSV). The Jaber study is noteworthy for documenting that the performance of PSV using modern anesthesia ventilators approaches the performance of an intensive care unit ventilator. The editorial correctly indicates that the testing was no...
The problems which arise in dealing with the myasthenic patient in the immediate postoperative period following thymectomy are discussed. The indications for and advantages of spontaneous ventilation, elective tracheostomy and intermittent positive pressure ventilation are considered and the benefits of managing all such cases in an intensive care unit are stressed. It is considered that only i...
It is often unclear when and how to wean patients from mechanical ventilation. We have devised an evidence-based protocol in which patients undergo a 30-minute trial of spontaneous breathing with a T tube or pressure support of 7 cm H2O. Those who can tolerate the trial are extubated, while those who cannot are reconnected to mechanical ventilation but undergo another trial every day until they...
INTRODUCTION Ventilator-induced lung injury (VILI), one of the most serious complications of mechanical ventilation (MV), can impact patients' clinical prognoses. Compared to control ventilation, preserving spontaneous breathing can improve many physiological features in ventilated patients, such as gas distribution, cardiac performance, and ventilation-perfusion matching. However, the effect o...
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