General Anesthesia
Conditions
Brief summary
The influence of different head and neck positions on the effectiveness of ventilation with the Ambu AuraGain airway remains unevaluated. This study aimed to evaluate the influence of different head and neck positions on ventilation with the AuraGain airway. An AuraGain will be placed in all patients, and mechanical ventilation will be performed using a volume-controlled mode with a tidal volume of 10 ml/kg. The expiratory tidal volume, peak inspiratory pressure, oropharyngeal leak pressure, and ventilation score will be assessed first for the neutral head position and then for the extended, flexed, and rotated head positions in a random order.
Interventions
OTHERNeutral position
The expiratory tidal volume, peak inspiratory pressure, oropharyngeal leak pressure, and ventilation score will be assessed at this position
OTHERExtension
The expiratory tidal volume, peak inspiratory pressure, oropharyngeal leak pressure, and ventilation score will be assessed at this position
OTHERFlexion
The expiratory tidal volume, peak inspiratory pressure, oropharyngeal leak pressure, and ventilation score will be assessed at this position
OTHERRotation
The expiratory tidal volume, peak inspiratory pressure, oropharyngeal leak pressure, and ventilation score will be assessed at this position
DEVICEAmbu AuraGain TM
Single Use Laryngeal Mask Sterile
Sponsors
Seoul National University Hospital
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE
Intervention model description
An AuraGain will be placed in all patients, and mechanical ventilation will be performed using a volume-controlled mode with a tidal volume of 10 ml/kg. The expiratory tidal volume, peak inspiratory pressure, oropharyngeal leak pressure, and ventilation score will be assessed first for the neutral head position and then for the extended, flexed, and rotated head positions in a random order.
Eligibility
Sex/Gender
ALL
Age
No minimum to 7 Years
Healthy volunteers
Yes
Inclusion criteria
* Children \< 7 years old who scheduled for general anesthesia using supraglottic airway
Exclusion criteria
* Children who require tracheal intubation * Emergency operation without NPO * History of C-spine surgery or disease * History of Esophageal disease or surgery
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Oropharyngeal leak pressure | 30 seconds after positioning of head and neck | The airway pressure at which a leak sound is detected around the patient's mouth and at which the airway pressure has reached equilibrium, when the pressure-limiting valve of the anesthesia breathing system is closed and the fresh gas flow rate was fixed at 3 L/min |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Peak inspiratory pressure | 30 seconds after positioning of head and neck | peak airway pressure |
| Tidal volume | 30 seconds after positioning of head and neck | Expiratory tidal volume |
| Fiberopic bronchoscopic view | 30 seconds after positioning of head and neck | 1\. No visible glottis 2. Visible glottis and anterior epiglottis 3. Visible glottis and posterior epiglottis 4. Only visible glottis |
Countries
South Korea
Outcome results
None listed