Bag-Mask Ventilation After Induction for RSI: Guideline Recommendations

Current Guideline Position on Post-Induction Ventilation

The Difficult Airway Society, Association of Anaesthetists, Intensive Care Society, Faculty of Intensive Care Medicine, and Royal College of Anaesthetists recommend gentle continuous positive airway pressure (CPAP) after reliable loss of consciousness, if the seal is good, to minimize the need for mask ventilation 1, 2, 3, 4
The American College of Chest Physicians recommends that patients with severe hypoxemia (PaO2/FiO2 < 150) should use noninvasive positive pressure ventilation (NIPPV) for preoxygenation 5, 6
High-flow nasal oxygen (HFNO) is suggested when laryngoscopy is expected to be challenging as an apneic oxygenation strategy 5, 6

Use minimal oxygen flows and airway pressures consistent with preventing hypoxia 1, 2, 3, 4
Insert a Guedel airway to maintain airway patency 1, 2, 3, 4
Use the 2-handed, 2-person technique with VE-grip to improve seal, particularly in obese patients 1, 2, 3, 4
Ensure full neuromuscular blockade before attempting ventilation (wait 1 minute or use peripheral nerve stimulator) 1, 2, 3, 4

The American College of Chest Physicians specifically recommends that patients with Duchenne Muscular Dystrophy (DMD) and FVC <50% predicted should be considered for assisted or controlled ventilation during induction and recovery from anesthesia 7

Modern guidelines prioritize preventing hypoxia over theoretical aspiration risk 1, 2, 3, 4
Use minimal pressures consistent with preventing hypoxia when bag-mask ventilation is necessary 1, 2, 3, 4
Single-handed C-grip technique should be avoided, and 2-person, 2-handed VE-grip technique should be used for optimal seal and minimal leak 1, 2, 3, 4
Ensure complete neuromuscular blockade before ventilation attempts to prevent coughing and laryngospasm 1, 2, 3, 4
Meticulous preoxygenation for 3-5 minutes is essential to maximize safe apnea time 1, 2, 3, 4