The Influence of Head and Neck Position on Performance of Ambu AuraGain™

The Influence of Head and Neck Position on Performance of Ambu AuraGain™

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.

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.

Fiberoptic bronchoscopic view will be also assessed for each head and neck positions.

Inclusion Criteria:

• Adults who were to undergo elective surgery under general anaesthesia using supraglottic airway device

Exclusion Criteria:

• Patients who had risk factor for difficult intubation
• BMI > 30kg/m2
• Emergency operation without NPO
• History of cervical spine surgery or disease
• History of esophageal operation or gastroesophageal reflux disease