Pediatric surgery
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Non newborns aged<4 years (48 months); 2) Children who are preparing for elective surgery and require general anesthesia intubation.
Exclusion criteria
Exclusion criteria: 1) The legal guardian of the child refused to participate in this study; 2) Emergency surgery; 3) Children with known difficult airways or suspected laryngeal or tracheal lesions; 4) Children with congenital deformities in the hands and lower limbs; 5) Children with severe heart and lung diseases such as asthma and congenital heart disease; 6) Children who have participated in other trials; 7) Other reasons why researchers believe that children should not participate in this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The accuracy of each formula in predicting EET depth, which is, the percentage of EET depth within an appropriate range predicted based on each formula; | — |
Secondary
| Measure | Time frame |
|---|---|
| The percentage of EET depth predicted by each formula to be too shallow (proximal intubation);The percentage of EET depths predicted by each formula to be too deep (distal intubation);The correlation between tracheal anatomical length and age, height, weight, BMI, middle finger length, gender, etc;The accuracy of each formula in predicting EET depth for children of different age groups (January June, June 1 year old, 1-2 year old, 2-4 year old);The accuracy of each formula in predicting EET depth for children with different body weights; | — |
Countries
China
Contacts
Department of Anesthesiology, Peking University First Hospital, Beijing, China.