Comparison of Non-invasive Methods of Lung Ventilation in Patients With Respiratory Failure After Cardiac Surgery

The study includes the comparison of the three methods of non-invasive ventilation: non-invasive mask ventilation, high-flow oxygen therapy through a nasal cannula (high-flow nasal oxygenation) and non-invasive ventilation with a helmet in patients with mild and moderate respiratory failure in the early postoperative period after cardiac surgery. It assumes 90 randomized patients:30 patients in three study groups male and female aged 30 to 60 years of age inclusive, with mild or moderate respiratory failure.The study will be randomized, single-center, prospective.

Inclusion criteria

• Age from 30 years to 60 years inclusive
• Decreased oxygenation function of the lungs (SpO2 less than 90%, PaO2/FiO2 less than 300, BH less than 25 per minute)
• By data CT/x-ray examination of hypoventilation zones (pneumonia, atelectasis)
• Consent the patient to participate in this study

Exclusion criteria

• Tracheal intubation, absence of independent breathing
• Unstable hemodynamics or hemodynamically significant rhythm disturbances
• Acute violation of the cerebral blood supply
• Shocks of various etiologies
• Impossibility provide respiratory protection , high risk of aspiration
• Lack of productive contact with the patient
• Patient's refusal to participate in this study