The Influence of Head and Neck Position on the Oropharyngeal Leak Pressure and Cuff Position of Three Supraglottic Airway Devices

Abstract

The PLMA showed significantly lower oropharyngeal leak pressures than did the LTS or CobraPLA in the neck extension and rotation positions. Caution is warranted when changing the position of the head and neck when using the Cobra-PLA or LTS as gastric insufflation or ventilatory difficulty may occur.