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

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 120 (actual)
• Sponsor: Seoul National University Hospital · Academic / Other
• Sex: All
• Age: 1 Month – 5 Years
• Healthy volunteers: Accepted

Summary

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.

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.

Conditions

• Child
• Anesthesia

Interventions

Type	Name	Description
OTHER	Mask ventilation	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.
DRUG	Rocuronium	Rocuronium 0.6 mg/kg is injected before mask ventilation in muscle relaxant group or after finish of study in non-relaxant group.

Timeline

• Start date: 2015-02-01
• Primary completion: 2015-12-01
• Completion: 2015-12-01
• First posted: 2015-06-15
• Last updated: 2019-01-31
• Results posted: 2019-01-31

Locations

1 site across 1 country: South Korea