Last updated on April 2018

High-intensity Versus Conventional-intensity Noninvasive Positive Pressure Ventilation in Acute Exacerbation of Chronic Obstructive Pulmonary Disease: the HAPPEN Study (HAPPEN)


Brief description of study

The main purpose of the present study is to verify whether, as compared with conventional-intensity noninvasive positive pressure ventilation, high-intensity noninvasive positive pressure ventilation may more effective in correcting hypercapnia, hence reducing the need for intubation and improving survival in patients with acute exacerbation of chronic obstructive pulmonary disease.

Clinical Study Identifier: NCT02985918

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Recruitment Status: Open


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