Hypoxemia
Conditions
Interventions
Intervention group:Induction of general anesthesia without routine mask ventilation before intubation: this is achieved by minimizing oxygen consumption, ensuring thorough pre-oxygenation, and maintai
Sponsors
The First Affiliated Hospital, Sun Yat-sen University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Age = 18 years 2. Patients scheduled to undergo elective thyroid surgery with recurrent laryngeal nerve monitoring 3. Obtained informed consent from the patient or guardian
Exclusion criteria
Exclusion criteria: 1. Patients participating in another interventional clinical trial 2. Emergency surgery 3. Severe cardiac or respiratory disease 4. ASA classification = IV 5. BMI = 35 kg/m² 6. Tracheal stenosis or tracheal compression 7. Inability to cooperate with preoperative pre-oxygenation
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence of decreased blood oxygen saturation (SpO2 < 94%) during anesthesia induction; | — |
Secondary
| Measure | Time frame |
|---|---|
| End-tidal carbon dioxide levels in the first breath cycle post-intubation;End-tidal oxygen levels in the first breath cycle post-intubation;Safe apnea time;Lowest SpO2 during induction;the incidence of SpO2 < 90%; | — |
Countries
China
Contacts
Public ContactWenqi Huang
The First Affiliated Hospital,Sun Yat-sen University
Outcome results
None listed