- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02471521
Optimal Inspiratory Pressure for Facemask Pressure-controlled Ventilation in Children
Optimal Inspiratory Pressure for Facemask Pressure-controlled Ventilation in Children: Study Using Detection of Gastric Insufflation Using Ultrasonography of the Antrum and Epigastric Auscultation
The purpose of this study is to find an optimal inspiratory pressure to provide adequate tidal volume and prevent gastric insufflation in pediatric patients.
The children under 5 years old are randomly assigned to muscle relaxation group and non-relaxation group. For muscle relaxation group, routine anesthesia induction is performed with muscle relaxant and mask ventilation is started by pressure-controlled mechanical ventilation. Gastric auscultation and abdominal ultrasonography are performed simultaneously during mask ventilation to detect inflow of air. Initial inspiratory airway pressure is 10 cmH2O and increased gradually by 2 cmH2O until gastric insufflation is detected by either of two methods. Tracheal intubation is done after detection of gas.
For non-relaxation group, mask ventilation is performed in a same manner, without muscle relaxant. After detection of gas by any of the two methods, rocuronium 0.6 mg/kg is administered and tracheal intubation is performed.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The purpose of this study is to find an optimal inspiratory pressure to provide adequate tidal volume and prevent gastric insufflation in pediatric patients.
The children under 5 years old are randomly assigned to muscle relaxation group and non-relaxation group. Stratum was constructed based on age and randomization scheme was performed separately within each stratum. Block randomization was done to ensure balance of the age groups.
For muscle relaxation group, routine anesthesia induction is performed with muscle relaxant and mask ventilation is started by pressure-controlled mechanical ventilation. Gastric auscultation and abdominal ultrasonography are performed simultaneously during mask ventilation to detect inflow of air. Initial inspiratory airway pressure is 10 cmH2O and increased gradually by 2 cmH2O until gastric insufflation is detected by either of two methods. Tracheal intubation is done after detection of gas.
For non-relaxation group, mask ventilation is performed in a same manner, without muscle relaxant. After detection of gas by any of the two methods, rocuronium 0.6 mg/kg is administered and tracheal intubation is performed.
Tidal volume and oxygen saturation are recorded during study period.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
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Seoul, Korea, Republic of, 110-744
- Seoul National University Hospital
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Pediatric patients scheduled for elective surgery under general anesthesia
- BMI < 30
- ASA class 1 or 2
Exclusion Criteria:
- with difficult airway
- preexisting pulmonary disease
- upper respiratory tract infection
- intestinal obstruction
- with risk of pulmonary aspiration
- history of stoke or moyamoya disease
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Neuromuscular blocker
During induction of anesthesia, mask ventilation by pressure controlled ventilation is performed with after rocuronium administration in children while continuous gastric auscultation and abdominal sonography are performed.
|
Mask ventilation is performed after administration of rocuronium or not.
Initial inspiratory pressure is set as 10 cmH2O and increased gradually by 2 cmH2O until gastric insufflation is detected by either of two methods.
Tracheal intubation is done after detection of gas.
Rocuronium 0.6 mg/kg is injected before mask ventilation in muscle relaxant group or after finish of study in non-relaxant group.
|
Active Comparator: Non-neuromuscular blocker
During induction of anesthesia, mask ventilation by pressure controlled ventilation is performed without rocuronium in children while continuous gastric auscultation and abdominal sonography are performed.
|
Mask ventilation is performed after administration of rocuronium or not.
Initial inspiratory pressure is set as 10 cmH2O and increased gradually by 2 cmH2O until gastric insufflation is detected by either of two methods.
Tracheal intubation is done after detection of gas.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Inspiratory Pressure That Cause Gastric Insufflation
Time Frame: Interval between start of mask ventilation and detection of gastric insufflation, an expected average of 100 sec
|
Difference in the inspiratory pressure that minimized the incidence of gastric insufflation, yet guaranteed a tidal volume of at least 6 ml/kg between the neuromuscular blocker and non-neuromuscular blocker groups. Gastric insufflation was measured using both gastric ultrasonography and epigastric auscultation. |
Interval between start of mask ventilation and detection of gastric insufflation, an expected average of 100 sec
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Diagnostic Method That Detects Gastric Insufflation First
Time Frame: Interval between start of mask ventilation and detection of gastric insufflation, an expected average of 100 sec
|
Interval between start of mask ventilation and detection of gastric insufflation, an expected average of 100 sec
|
Collaborators and Investigators
Investigators
- Principal Investigator: Jin-Tae Kim, MD. PhD., Seoul National University
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- H-1412-083-633
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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