Comparison of BPAP ST/T and BPAP ST / T Mode With AVAPS for Hypercapnic Respiratory Failure in ED

Non-invasive positive pressure ventilation (NIMV) is a life-saving procedure for patients with hypoxic and/or hypercapnic respiratory failure. AVAPS (average volume assured pressure support) is a noninvasive ventilation mode which has been developed to assure volume and pressure controlled respiratory support. AVAPS can ensure a constant tidal air volume to the patient with variable pressure support. Thus the positive features of the volume and pressure controlled support, which have a positive impact on the healing and recovery processes are combined. This study aims to compare, in a randomized order, BPAP ST/T and BPAP ST / T Mode with AVAPS, in patients with hypercapnic respiratory failure in the emergency department. Subjects: One hundred and two patients with hypercapnic respiratory failure will be included. Primary outcome; decrease in the PaCO2 values Secondary outcomes are stated as; Failure of treatment options, or change of the NIMV mode due to patient noncompliance or the patient's need for intubation and length of hospital stay (length of stay in the hospital from the emergency department).