none
Conditions
Interventions
Nasal oxygen tube group:After induction, administer 10 L/min of oxygen through the nasal oxygen tube
Nasopharyngeal ventilation tract group:After induction, place the nasopharynx airway and administer oxygen at 10L/min
Threaded pipe group:After induction, the threaded tube opens and blows oxygen towards the mouth and nose, providing oxygen at a rate of 10L/min
Control group:Routine mask oxygenation, induction
Sponsors
The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 70 Years
Inclusion criteria
Inclusion criteria: 1. 18 years old= age = 70 years old; 2. ASA I or II; 3. Improved Mallampati grade I.-III. 4. Basic pulse oxygen saturation = 97%; 5. Elective surgery under general anesthesia; 6. Sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1. The patient refuses to participate; 2. ASA Level III and above; 3. Predictable difficult airway; 4. Tooth loss; 5. Head and facial deformities; 6. History of nasopharyngeal surgery or skull base fracture; 7. Nasal polyps or pronounced nasal septum deviation; 8. Body mass index (BMI)> 30 kg/m2; 9. Pregnant patients; 10. Patients with full stomach and Emergency patients; 11. Upper gastrointestinal bleeding; 12. Pulmonary bullae, bronchiopleural fistula, pneumothorax, etc.; 13. Severe cardiopulmonary dysfunction, etc.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Mask ventilation stops when exhaling carbon dioxide;The lowest value of oxygen saturation reached after mask ventilation stops;Exhaled carbon dioxide when ventilation begins after intubation;No ventilation safety time (stop mask ventilation until the patient's oxygen saturation drops to 95%);Ventilation begins after intubation until oxygen saturation returns to 100% of the time; | — |
Secondary
| Measure | Time frame |
|---|---|
| Bleeding from the nasal cavity;Tooth damage;sore throat;Hoarse;Oropharyngeal bleeding;Complications associated with endotracheal intubation; | — |
Countries
China
Contacts
Public ContactShangguan Wangning
The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
Outcome results
None listed