background: application noninvasive ventilation in the patients with exacerbation of chronic obstructive pulmonary disease (copd) reduced mortality. this case-control study was designed to compare efficiency and outcome of non-invasive (niv) versus invasive positive pressure ventilation (ippv) in respiratory failure due to copd methods: the patients were assigned to niv or ippv intermittantly.t...

Efficiency of non-invasive positive pressure ventilation in the treatment of respiratory failure has been shown in many published studies. In this review article, we introduced new modalities of non-invasive ventilation (NIV), clinical settings in which NIV can be used and a practical summary of the latest official guidelines published by the European Respiratory Clinical Practice. Clinical tri...

We read with interest the recent paper published in Thorax by Plant et al 1 which analysed predictors of the outcome of non-invasive ventilation (NIV) in patients with acute exacerba-tions of chronic obstructive pulmonary disease. Few data are available on this important question , and studies specifically designed to propose answers are either retrospective 2 or have been performed in a small ...