Comparison of Four Different Recruitment Maneuvers in Patients After Coronary Surgery

Comparison of Different Types of Postoperative Pulmonary Recruitment and Predicting Its Efficacy Following Off-pump Coronary Artery Bypass Grafting

The risk of respiratory failure after cardiac surgery is high, and it may result in many complications. The maneuver of alveolar recruitment may improve the oxygen transport in the human organism. The investigators compare three different types of alveolar recruitment in patient after cardiac surgery, to reveal which one is better.

The study compares three different approaches to alveolar recruitment maneuvers in the immediate postoperative period after off-pump coronary bypass grafting.

Inclusion Criteria:

• Age between 18 and 75
• Off-pump coronary artery bypass grafting
• Possibility to discontinue respiratory support in the first day after intervention

Exclusion Criteria:

• Signs of ARDS
• COPD in decompensation phase
• Requirement for inotropic support(epinephrine >0,1 mcg/kg/hr)
• Bronchiectases
• Pregnancy
• Morbid obesity
• Aortic aneurism
• AMI in previous month