Noninvasive Ventilation Weaning in Acute Hypercapnic Respiratory Failure due to COPD Exacerbation: A Real-Life Observational Study

<div>Flow chart of study population. IRCU, intermediate respiratory care unit; COPD, chronic obstructive pulmonary disease; AHRF, acute hypercapnic respiratory failure; NIV, noninvasive ventilation.</div>

Canadian Respiratory Journal

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Figure 2

Figure 2: Noninvasive Ventilation Weaning in Acute Hypercapnic Respiratory Failure due to COPD Exacerbation: A Real-Life Observational Study 