Difficult airway
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Children undergoing general anesthesia with tracheal intubation; 2. ASA class I-II; 3. Patients aged from 6 to 14 years and weighing 25-50kg; 4. The guardian signs the informed consent.
Exclusion criteria
Exclusion criteria: 1. Patients with airway hyperresponsiveness (cold history and asthma history in recent two weeks); 2. Patients with allergic history of lidocaine; 3. Patients with mental illness or inability to cooperate.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| fibronchoscopic views;successful incidence of intubation;Bronchoscopy times; | — |
Countries
China
Contacts
Plastic Surgery Hospital of Chinese Academy of Medical Sciences