Management of Atelectasis in the Cardiovascular Intensive Care Unit (CVICU)

Preventive Strategies

The American Society of Anesthesiologists recommends monitoring and regulating endotracheal tube cuff pressure to 20-30 cmH2O to prevent leaks while avoiding excessive pressure on the tracheal mucosa 1, 2
Proper endotracheal tube positioning and recording tube depth at every shift can minimize the risk of displacement, as suggested by the American Thoracic Society 2, 3
The use of closed tracheal suction systems can minimize aerosol generation and maintain lung volume, according to the American Association for Respiratory Care 3, 4
Checking cuff pressure and tube depth before and after any patient repositioning is crucial, as recommended by the Society of Critical Care Medicine 3
Considering the use of an endotracheal tube with a subglottic suction port can be beneficial, as suggested by the American College of Chest Physicians 5

Monitoring for signs of atelectasis through observation of bilateral chest wall expansion during ventilation is recommended by the American Thoracic Society 1, 6
Utilizing lung ultrasound or chest x-ray to confirm diagnosis and extent of atelectasis is suggested by the Society of Critical Care Medicine, especially when there is doubt about bilateral lung ventilation 1, 6

Applying positive end-expiratory pressure (PEEP) of 6-15 cmH2O, with higher PEEP recommended for patients with moderate to severe ARDS, is suggested by the American Thoracic Society 7
Ensuring cuff pressure is at least 5 cmH2O above peak inspiratory pressure before performing recruitment maneuvers can prevent leaks, as recommended by the American Society of Anesthesiologists 2, 3

Providing physiotherapy before and after extubation for patients ventilated for more than 48 hours can reduce weaning duration and extubation failure, according to the American Association for Respiratory Care 8, 9
Considering having a physiotherapist attend endotracheal extubation can limit immediate complications, as suggested by the American College of Chest Physicians 9

Considering high-flow oxygen therapy via nasal cannula after extubation for hypoxemic patients and those at low risk of reintubation is recommended by the American Thoracic Society 8, 9
Using non-invasive ventilation (NIV) after extubation for patients at high risk of reintubation, especially those with hypercapnia, is suggested by the American College of Chest Physicians 8, 9
Applying NIV to treat acute respiratory failure after extubation in patients with underlying COPD or cardiogenic pulmonary edema is recommended by the American Association for Respiratory Care 9

Ensuring adequate sedation, considering neuromuscular blockade, pausing the ventilator, clamping the endotracheal tube, and separating the circuit with the heat and moisture exchanger filter attached to the patient during procedures requiring circuit disconnection is crucial, as recommended by the Society of Critical Care Medicine 10
Reversing the procedure after reconnection is important, as suggested by the American Society of Anesthesiologists 10, 3

Heat and moisture exchange filters can become blocked if they become wet, causing increased airway resistance that may be mistaken for patient deterioration, as warned by the American Association for Respiratory Care 3, 4
Being vigilant for tube displacement during sedation holds is crucial, as recommended by the American Society of Anesthesiologists 3