upper airway obstruction


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up·per air·way ob·struc·tion

(ŭp'ĕr ār'wā ŏb-strŭk'shŭn)
Blockage of the throat, larynx, or trachea, in any combination.

upper airway obstruction

Abbreviation: UAO
Any potentially life-threatening abnormality in which the flow of air into and out of the lungs is partially or completely blocked by such conditions as laryngeal swelling, foreign bodies, or angioedema.
See: cardiopulmonary resuscitation; tracheostomy
See also: obstruction
References in periodicals archive ?
Decannulation rates were significantly lower in the PMV group than in the upper airway obstruction group (p=0.011).
Second, the Double Barrel Technique and Modified Double Barrel Technique have both allowed safe emergence from anesthesia for patients predisposed to upper airway obstruction. The nasal trumpets described herein have been used safely in our institution for over three years without any patient having complications or desaturations.
Upper airway obstruction secondary to warfarin-induced sublingual hematoma.
Acute upper airway obstruction from acquired angioedema.
The predominant medical cause for admission was upper airway obstruction (n=10).
He said: "The possibility of upper airway obstruction can't be ruled out."
In the pulmonary function tests: FVC 93%, FEV1 90%, FEV1/FVC 95.2 and intrathoracic upper airway obstruction was suspected due to flattening of the expiratory limb of flowvolume loops (Figure 2).
(1.) Acres J, Kryger MH Clinical significance of pulmonary function tests: upper airway obstruction Chest 1981;80:207-211.
"Although the circumstances of Katya's death very strongly indicate the cause was accidental upper airway obstruction, it is not possible to provide an exact cause of death from the post mortem," he said.
We present a case of acute upper airway obstruction secondary to angio-oedema.
One patient required an emergency tracheostomy and one had an almost complete upper airway obstruction.
A test in which increased PEFR may indicate a mechanical problem, such as upper airway obstruction or obstructive disease.