Upper airway obstruction
Conditions
Interventions
Control group:Routine oxygen airway management (without prior NA)
Intervention group:A nasopharyngeal vent tube was used in advance to assist airway management.
Sponsors
Cancer Hospital, Chongqing University
Eligibility
Sex/Gender
All
Age
18 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1.Adult patients aged 18-75 years. 2.Patients scheduled to undergo a painless colonoscopy. 3.Patients with potentially difficult airway characteristics indicated by preoperative evaluation (patients with potentially difficult airway characteristics indicated by pre-examination evaluation (Wilson score =2 May have difficult airway; Wilson risk Score was used as a scoring tool to predict difficult tracheal intubation. Wilson risk score mainly included five indicators: 1 score for body weight of 90-110kg and 2 score for body weight > 110kg; Head and neck motion about 90° is 1 min, <90° is 2 min; Mouth opening degree 5cm is 1 point, <5cm is 2 points; The degree of mandibular retraction was 1 point in medium and 2 points in severe. The ability of incisor protrusion was 1 point in medium and 2 points in severe).
Exclusion criteria
Exclusion criteria: 1.Patients with oropharyngeal structural abnormalities or severe oral infections; 2.People with a known history of allergies or allergies to OPA materials; 3.Patients who have had upper respiratory tract surgery recently (within 3 months). 4.Pregnant and lactating women.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence of intraoperative hypoxia (SpO2<90%); | — |
Secondary
| Measure | Time frame |
|---|---|
| Operator satisfaction score;Intraoperative incidence of clinical respiratory depression (SpO2 of 90%-95%) and severe hypoxia (SpO2 of 75%-89% with a duration greater than 60 s or SpO2<75%);Usage of hypoxic event handling measures;Entry time;The success rate of reaching the blind;Incidence of intraoperative and postoperative adverse reactions;Airway management success rate;Detection rate of adenoma; | — |
Countries
China
Contacts
Public ContactJuan Jiang
Cancer Hospital, Chongqing University
Outcome results
None listed