Managing High Secretions in Intubated ICU Patients

Assessment-Based Suctioning Strategy

The British Journal of Anaesthesia recommends assessing for suctioning needs by monitoring for absence or change in capnograph waveform, reduced chest wall movement, increasing airway pressures, reducing tidal volumes, or inability to pass a suction catheter 2, 3

The Intensive Care Medicine journal suggests that either open or closed suction systems are acceptable, but closed systems may be preferred in specific high-risk situations 4
The Anaesthesia journal recommends providing hyperoxygenation before and after each suction pass to prevent desaturation, using 100% FiO₂ for 30-60 seconds 5
The Intensive Care Medicine journal advises against routinely instilling normal saline before suctioning, as this practice has potential adverse effects on oxygen saturation and cardiovascular stability with variable effectiveness for secretion removal 4

The British Journal of Anaesthesia recommends maintaining cuff pressure at 20-30 cm H₂O and checking pressure each shift to prevent both microaspiration and tracheal mucosal injury 1, 2, 6
The British Journal of Anaesthesia suggests documenting tracheal tube insertion depth on the bedside chart and verifying each shift or with any respiratory deterioration 2
The Anaesthesia journal recommends using heat and moisture exchange (HME) filters between the catheter mount and breathing circuit 5

The British Journal of Anaesthesia states that waveform capnography is mandatory for all intubated ICU patients, as it detects 95% of critical incidents and is the single most important change to prevent airway-related deaths 1, 2
The British Journal of Anaesthesia recommends monitoring for airway red flags indicating potential tube displacement or blockage: absence or change in capnograph waveform, reduced chest movement, increasing airway pressure, reducing tidal volume, inability to pass suction catheter, obvious air leak, or vocalization with cuffed tube inflated 2, 3

The British Journal of Anaesthesia suggests administering intravenous corticosteroids for at least 12 hours in high-risk patients to reduce airway edema, post-extubation stridor, and reintubation rates 2, 6
The British Journal of Anaesthesia recommends avoiding unnecessary positive fluid balances that can worsen airway edema 2
The British Journal of Anaesthesia advises considering antibiotics if upper airway infection is suspected as a contributor to increased secretions 2, 6