Elective Urologic Surgeries
Conditions
Keywords
manual ventilation, pressure-controlled ventilation, peak airway pressure, antral area
Brief summary
Comparison of peak airway pressure and gastric insufflation in manual ventilation and pressure-controlled ventilation with facemask during anesthesia induction in children.
Interventions
OTHERmanual ventilation
Anesthesia will be induced by propofol 1mg/kg via intravenous line. Once loss of eyelash reflex occurred, ultrasonography of antral area will be started by same physician. After administration of muscle relaxant (rocuronium 0.2-0.4mg/kg), manual ventilation will be performed with respiratory rate 20 breathes/min, I:E ratio of 1:1 and tidal volume with 9-10mL/kg. The pop-off valve will be set at 15cmH2O at fixed gas flow of 500mL/min of oxygen. Pressure-controlled ventilation will be performed with respiratory rate 20 breaths/min, I:E ratio of 1:1 and peak airway pressure will be set to get a tidal volume of 9-10mL/kg. The peak airway pressure during facemask ventilation will be checked. Another physician will auscultate the epigastric area to detect gastric insufflation during facemask ventilation. Ultrasonography of antral area will be checked once again after 3 minutes of facemask ventilation.
Anesthesia will be induced by propofol 1mg/kg via intravenous line. Once loss of eyelash reflex occurred, ultrasonography of antral area will be started by same physician. After administration of muscle relaxant (rocuronium 0.2-0.4mg/kg), manual ventilation will be performed with respiratory rate 20 breathes/min, I:E ratio of 1:1 and tidal volume with 9-10mL/kg. The pop-off valve will be set at 15cmH2O at fixed gas flow of 500mL/min of oxygen. Pressure-controlled ventilation will be performed with respiratory rate 20 breaths/min, I:E ratio of 1:1 and peak airway pressure will be set to get a tidal volume of 9-10mL/kg. The peak airway pressure during facemask ventilation will be checked. Another physician will auscultate the epigastric area to detect gastric insufflation during facemask ventilation. Ultrasonography of antral area will be checked once again after 3 minutes of facemask ventilation.
Sponsors
Yonsei University
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
6 Months to 7 Years
Healthy volunteers
Yes
Inclusion criteria
1. ASA physical status with I or II 2. Those parents who signed with informed consents. 3. Children who are scheduled for elective urologic surgery (aged 6 month to 7 year)
Exclusion criteria
1. Risk of aspiration 2. Oropharyngeal or facial anomaly 3. history of abdominal (stomach) surgery
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| peak airway pressure | 3 minutes | The primary outcome is the difference of peak airway pressure produced by manual ventilation group and pressure-controlled ventilation group during induction of anesthesia. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| antral area of stomach | 3 minutes | All patients' antral area of stomach will be calculated by ultrasound after 3 minutes-facemask ventilation to estimate the quantity of gas insufflation. |
Countries
South Korea
Outcome results
None listed