Type I POPE

Postextubation laryngospasm

Epiglottitis

Croup

Choking/foreign body

Strangulation

Hanging

Endotracheal tube obstruction

Laryngeal tumor

Goiter

Mononucleosis

Postoperative vocal cord paralysis

Migration of Foley catheter balloon

used to tamponade epistaxis

Near drowning

Intraoperative direct suctioning

of endotracheal tube adapter

Type II POPE

Post-tonsillectomy/adenoidectomy

Post-removal of upper airway tumor

Choanal stenosis

Hypertrophic redundant uvula