Oropharyngeal leak pressure of supraglottic airway devicd at head rotation

JRCT ID: jRCT1012210043

Registered date:18/10/2021

Basic Information

• Recruitment status: Recruiting
• Health condition(s) or Problem(s) studied: Diseases needed operation under general anesthesia
• Date of first enrollment: 18/10/2021
• Target sample size: 160
• Study type: Interventional
• Intervention(s): The supraglottic airway device, AuraGain or i-gel, is inserted to maintain airway opening after induction of general anesthesia. The selection of the supraglottic device depends on computerized randomization.

Outcome(s)

• Primary Outcome: Oropharyngeal leak pressure at 0, 30 and 60 degree head rotations

Secondary Outcome

Ventilation score
Maximum airway pressure under 10 mL/kg volume controlled ventilation
Expiratory tidal volume under 10 mL/kg volume controlled ventilation
Fiberoptic view of vocal cords

Key inclusion & exclusion criteria

• Age minimum: >= 18age old
• Age maximum: Not applicable
• Gender: Both

Include criteria

Patients who received elective surgery under general anesthesia
Patients with ASA-PS 1-3

Exclude criteria

Patients who has the risk of pulmonary varotrauma
Patients who has the risk of aspiration pneumonia
Patients who has the restriction of head rotation

Related Information

• Primary Sponsor: Chaki Tomohiro