Eeffective preoxygenation followed by apnoeic oxygenation enables anaesthesiologists to safely prolong the apnoea time which is the time (seconds) of apnea following preoxygenation and muscle relaxation before to peripheral oxygen saturations (SpO2) decreases by 2%.
Transnasal humidified rapid-insufflation ventilatory exchange (THRIVE) using high flow oxygen therapy for preoxygenation and oxygen supplementation during apnoea has shown promising results