About this trial
Aim: To compare gas exchange trends, clinical outcomes, and tolerability between HFNC and NIV in COPD patients with mild-to-moderate hypercapnic respiratory failure.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
COPD patients hospitalized with mild-to-moderate hypercapnic respiratory failure, defined as arterial pH [range, e.g., 7.25-7.35] and PaCO2 [threshold, e.g., >45 mmHg and less 60 mmHg].
Disqualifiers
patients with altered mental state, confused, severe agitation or not cooperative were excluded. Also, severe acidosis (pH <7.25), hemodynamic instability, facial trauma or surgery, cases with severe nasal deformity, immediate indication for invasive ventilation, patient refusal, cases with respiratory rate more than 35 breaths per minute. Respiratory exhaustion, excess use of respiratory accessory muscles, Patients with breathing disorders during sleep as well as cases of upper airway obstruction and patients with history of chronic home ventilation prior admission were another items for exclusion
Trial design
Parallel
Treatments tested in this trial
high flow nasal cannula
Devicehigh flow nasal canula oxygen therapy according to study protocol
non invasive ventilation
Devicenon invasive ventilation according to study protocol
Treatment groups
Trial outcomes
Primary outcomes
treatment failure
treatment failure defined as the need for escalation from assigned respiratory support to a higher level of ventilatory support during hospitalization. In HFNC group, treatment failure is defined as the need for rescue NIV or invasive mechanical ventilation. In the NIV group ,treatment failure is defined as the need of invasive mechanical ventilation. ( number and percentages of patients experiencing treatment failure in each treatment group)
Secondary outcomes
serial arterial blood gas parameters at 12, 24 and 48 hours
serial arterial blood gas parameters (pH, PaCO2, HCO3) at 12, 24 and 48 hours;
Sponsors and contacts
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Mohammed Shehta
Lead sponsor
Mansoura University
Sponsor institution