Gastric Volume in Paralyzed Obese Patients After High-flow Nasal Oxygen Therapy

Ultrasound Assessment of Gastric Volume in Paralyzed Obese Patients After High-flow Nasal Oxygen Therapy

Preoperative preoxygenation is performed using High-flow nasal oxygen therapy, and the gastric volume before and after High-flow nasal oxygen therapy is measured by ultrasound and compared in obese patients undergoing surgery under general anesthesia.

Preoperative preoxygenation is performed using High-flow nasal oxygen therapy, and the gastric volume before and after High-flow nasal oxygen therapy is measured by ultrasound and compared in obese patients undergoing surgery under general anesthesia.

Inclusion Criteria:

• Adult patients with a BMI of 30 kg/m2 or more, undergoing surgery under general anesthesia

Exclusion Criteria:

• Nasotracheal intubation
• History of a surgery or anatomical anomaly in the head and neck
• History of Inability to breathe through nose
• History of difficult airway
• Severe cardiac or respiratory disease
• Gastric reflux disease, diabetes, pregnancy
• Previous gastric surgery