Management of Lung Consolidation and Collapse

Initial Assessment and Stabilization

Ensure adequate pre-oxygenation for at least 3 minutes to achieve sufficient apnoeic time for safe intubation, as recommended by the British Journal of Anaesthesia 3
Perform a modified rapid sequence intubation using high-dose rocuronium to secure the airway, according to Anaesthesia 3
Consider patient positioning with head elevated 30 degrees to optimize respiratory mechanics, as suggested by the British Journal of Anaesthesia 2
Monitor for signs of respiratory failure, including hypoxemia and hypercapnia, which can lead to right ventricular failure, as noted in Intensive Care Medicine 4

The British Journal of Anaesthesia recommends setting tidal volume to 6-8 ml/kg predicted body weight to minimize ventilator-induced lung injury 1
Begin with PEEP of 5 cmH2O and individualize thereafter based on response, as recommended by the British Journal of Anaesthesia 1
Maintain driving pressure (plateau pressure - PEEP) below 18 cmH2O to reduce risk of right ventricular failure, according to Intensive Care Medicine 4, 7
Avoid high airway pressures that can worsen hemodynamic status through RV dysfunction, as noted in Intensive Care Medicine 4

Perform alveolar recruitment maneuvers (ARMs) to re-expand the collapsed lung, as recommended by the British Journal of Anaesthesia 2, 1
Use the lowest effective pressure and shortest effective time during recruitment maneuvers to minimize hemodynamic compromise, according to the British Journal of Anaesthesia 1
Consider bronchoscopy to clear any mucus plugging or secretions that may be causing the collapse, as suggested by Anaesthesia 3
Position patient with the affected (right) lung upward if possible to reduce blood flow to the consolidated area and improve oxygenation, as recommended by Intensive Care Medicine 4
Avoid excessive fluid administration which may worsen consolidation, according to Intensive Care Medicine 8

Use continuous SpO2 monitoring to detect hypoxemia, as recommended by the British Journal of Anaesthesia 2
Consider point-of-care lung ultrasound to assess recruitment effectiveness and monitor for progression, according to the World Journal of Emergency Surgery 9
Maintain PaO2/FiO2 ratio above 150 mmHg if possible to reduce risk of right ventricular failure, as noted in Intensive Care Medicine 4
Avoid PaCO2 levels ≥ 48 mmHg which can increase pulmonary vascular resistance, according to Intensive Care Medicine 4

Consider prone positioning, which can improve ventilation uniformity and unload the right ventricle, as recommended by Intensive Care Medicine 4, 7
If conventional ventilation fails to maintain adequate oxygenation despite optimization, consider extracorporeal membrane oxygenation (ECMO) in appropriate candidates, according to Intensive Care Medicine 8
For persistent pneumothorax associated with lung collapse, simple aspiration may be considered for primary pneumothoraces, while tube thoracostomy may be needed for secondary pneumothoraces, as noted in Thorax 10

Avoid excessive PEEP (>15 cmH2O) which can cause overdistension and worsen RV function, as noted in Intensive Care Medicine 4
Beware of vigorous spontaneous breathing efforts which can increase transmicrovascular pressure and worsen lung edema, according to Intensive Care Medicine 7
Recognize that clinical confirmation of tube placement has poor sensitivity and specificity; bronchoscopy may be necessary despite concerns about aerosol generation, as suggested by Anaesthesia 3
Avoid routine suctioning of the tracheal tube before extubation as this can cause alveolar collapse, according to the British Journal of Anaesthesia 2