High Flow Nasal Cannula Oxygen During Sedation for Video-assisted Thoracoscopic Surgery

Preventing Deoxygenation With High Flow Nasal Cannula Oxygen During Sedation for Video-assisted Thoracoscopic Surgery: A Randomized Controlled Trial

High-flow nasal cannula (HFNC) is a device that delivers10 to 70 L min-1 of heated, humidified 100% oxygen via nasal route. It provides positive airway pressure, decreases dyspnea, decreases the work of breathing, and improves comfort

Beneficial effects of the HFNC system have been assessed based on 3 physiologic conditions: decreased dead space, a high concentration of inspiratory oxygen, and positive pressure in the oro-laryngeal cavity.Studies have shown that it improves oxygenation in various perioperative settings such as the apneic patients, patients with respiratory failure , and patients undergoing bronchoscopy

Inclusion Criteria:

• ASA physical status II and III,
• undergoing VATS

Exclusion Criteria:

• refusal of patients
• extrem of age