H0118 Other scientific issues related to respiratory diseases
Conditions
Interventions
GroupA:When using this method, the anesthesiologist inflates the cuff while pressing the pilot balloon with a fingertip to adjust cuff pressure, until the tension of the pilot balloon feels comparable
GroupB:Observe real-time changes in the flow-volume loop on the monitor of the anesthetic machine’s closed circuit. Inflate the cuff using the fractional air injection method with 0.5 mL of air inject
record the initial cuff pressure (P?) at this moment.
Next, withdraw air from the cuff incrementally at 0.2 mL per time until the flow-volume loop opens again (air leakage occurs). Then reinflate the
Sponsors
Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine
Eligibility
Sex/Gender
All
Age
3 Years to 12 Years
Inclusion criteria
Inclusion criteria: 1. Aged 3 to 12 years; 2. gender unrestricted; 3. pediatric patients scheduled for surgery under general anesthesia with tracheal intubation; 4. American Society of Anesthesiologists (ASA) physical status class 1–2; 5. written informed consent voluntarily signed by the patient or their legal guardian
Exclusion criteria
Exclusion criteria: 1. Age 12 years; 2. predicted difficult intubation (Mallampati class = III); 3. anatomical airway abnormalities (e.g., tracheal stenosis, tracheoesophageal fistula); 4. underlying respiratory diseases (asthma, bronchopulmonary dysplasia); 5. high risk of aspiration (ASA class = III with gastric emptying disorder); 6. recent respiratory tract infection (fever, cough, sore throat, hoarseness, etc., within 2 weeks before surgery); 7. patient or legal guardian refused to participate in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| endotracheal tube cuff pressure;Tracheal mucosal injury;sore throat hoarseness cough stridor; | — |
Countries
China
Contacts
Public ContactXiao Zhang
Shanghai Children's Medical Center
Outcome results
None listed