Sedation Compaired With Anesthesia With THRIVE in Endotracheal Intubation With Difficult Airways

Exclusion Criteria

• •Respiratory diseases: respiratory failure, COPD, pulmonary fibrosis, asthma and other diseases. Patients with ventilatory dysfunction or airway obstruction.
• •NYHA cardiac function grade greater than I, or NYHA cardiac function grade I but with a history of coronary heart disease.
• •Conditions affecting the monitoring of peripheral oxygen saturation, such as poor peripheral circulation perfusion and application of vasoconstrictor, are present.
• •Indoor oxygen saturation below 92%.
• •Patients who cannot tolerate rapid exchange ventilation with nasal humidification.
• •Patients with a history of easy nasal bleeding.
• •Inability to understand or express pain scores.
• •Menstrual period and lactation period of female patients.
• •The patient has mental illness.
• •Patients with severe intraoperative complications should be removed after surgery