upper airway obstruction


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upper airway obstruction (UAO)

any abnormal condition of the mouth, nose, or larynx that interferes with breathing when the rest of the respiratory system is functioning normally.

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 ?
Physical examination revealed micrognathia and upper airway obstruction caused by ptosis of the tongue base.
Total upper airway obstruction during local anesthesia in a non-sedated patient with a compromised airway.
Pediatric upper airway obstruction due to ectopic thyroid: Classification and case reports.
Flow volume loops in the evaluation of upper airway obstruction.
Rule of thumb for a breathing problem, especially an upper airway obstruction, is to keep the dog cool and calm.
Keywords: Endotracheal intubation, Upper airway obstruction, Emergency situations.
Lingual artery hematoma resulting in upper airway obstruction.
The authors have organized the main body of their text in thirty-six chapters devoted to upper airway obstruction, lower airway obstruction, the neonatal chest, congenital lung lesions, pulmonary infections, mediastinal and chest wall masses, and a wide variety of other related subjects.
Symptoms can range from acute upper airway obstruction (UAO) to mild, vague respiratory complaints.
2 It is characterized by the occurrence of 5 or more episodes of complete (apnea) or partial (hypopnea) upper airway obstruction per hour of sleep (apnea-hypopnea index [AHI]) and is estimated to occur in around 24% of middle aged men and 9% of women.
This case demonstrated a severe, acute presentation of tongue swelling (glossitis) leading to upper airway obstruction.
Although nasopharyngeal teratomas are observed considerably rarely, they usually appear as large tumoral masses and lead to severe upper airway obstruction in the first minutes of life (2, 3).