General Anesthesia
Conditions
Brief summary
Ambu AuraGain, I-gel, Air-Q intubating laryngeal airway are the most commonly used supraglottic airway. In children, they can be used as intubation conduits. However, there has been no guideline for optimal insertion depth of endotracheal tube through those supraglottic airway. In this study, the investigators will measure the distance from grille of those supraglottic airways to glottis using fiberoptic bronchoscope in children undergoing anesthesia. This distance allows us to predict an appropriate depth of endotracheal tube when it should be inserted through each supraglottic airway.
Interventions
PROCEDUREfiberoptic bronchoscope
Distance from grille (the end of shaft in supraglottic airway) to glottis is measured using FOB
Sponsors
Seoul National University Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
No minimum to 7 Years
Healthy volunteers
No
Inclusion criteria
* children \< 7 years old undergoing elective surgery
Exclusion criteria
* difficult airway * BMI\> 30kg/m2 * emergency operation * cervical spine disease * history of esophageal disease and surgery
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The distance from grille to glottis | 30 seconds after each supraglottic airway insertion | The distance from grille to glottis is measured using fiberoptic bronchoscopy |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| FOB view | 30 seconds after each supraglottic airway insertion | score 1: no visible glottis, score 2: visible glottis and anterior epiglottis, score 3: visible glottis and posterior epiglottis, and score 4: only glottis visible |
| Ventilation score | 30 seconds after each supraglottic airway insertion | no air leak in airway pressure of 15 cmH2O / bilateral chest wall movement/ normal waveform of capnography |
Countries
South Korea
Outcome results
None listed