Lights and shadows of non-invasive mechanical ventilation for chronic obstructive pulmonary disease (COPD) exacerbations.

In a recent investigation, the authors performed a time trend analysis of a retrospective observational study based on the minimum basic hospital discharge data aimed at evaluating the introduction of NIV in patients hospitalized for COPD at all public hospitals in the region of Murcia (Spain) between 1997 and 2010.[ 37 ] Although the observed improvements in terms of global mortality or length of stay did not reach statistical significance, the introduction of NIV in these hospitals reduced the number of patients not receiving assisted ventilation.

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