High Flow Nasal Cannula to Prevent Deoxygenation During Induction of General Anesthesia in Cesarean Section

A Prospective Randomized Study of High Flow Nasal Cannula to Prevent Deoxygenation During Induction of General Anesthesia in Cesarean Section

Transnasal humidified rapid-insufflation ventilatory exchange (THRIVE) using high flow oxygen therapy for preoxygenation and oxygen supplementation during apnoea has shown promising results

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%.

Inclusion Criteria:

• pregnant females
• Of American Society of Anesthesiologists (ASA) physical Status I and II
• For elective cesarean section under general anesthesia

Exclusion Criteria:

• with room air saturation of <98%
• anticipated difficult airway
• anticipated obstetric risk factor or precious baby
• chronic obstructive pulmonary disease
• thyrotoxicosis
• pheochromocytoma
• hyperkalaemia
• significant cardiac illness