![]() Balloon over inflation can also cause upper airway trauma and compromise circulation through blood vessels in the neck.Ĭontinuous monitoring of waveform capnography to ensure correct placement and effective ventilation is every bit as important for supraglottic airway devices as it is for endotracheal tubes. Supraglottic airway devices are ineffective for patients with upper airway edema, such as from burns or anaphylaxis. ![]() Other studies of various devices have described cases of inadequate ventilation, inadequate protection from aspiration, and an inability to detect lung sounds after placement. A recent study shows a high rate of unrecognized misplacement of one supraglottic airway device, which is just as devastating as a misplaced endotracheal tube. They must be inserted to the correct depth for the ventilation port to be over the glottic opening. Supraglottic airways are not without complications. ![]() Ventilation is delivered through a port positioned above the glottic opening, and inflated cuffs or gel isolate the glottic opening to facilitate ventilation and protect the lower airway from aspiration.).
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