As to why astronauts toss and turn, the study could suggest only that the search needed to focus on something other than airway obstruction.
42.
Currently, heliox is mainly used in conditions of large airway narrowing ( upper airway obstruction from tumors or foreign bodies and vocal cord dysfunction ).
43.
The fraction of eNO has been found to be a better test to identify asthmatics than basic lung function testing ( for airway obstruction ).
44.
Symptoms range from mild shortness of breath to severe airway obstruction that can result in wheezing or, in about 5, 000 cases a year, death.
45.
Even in these extreme cases, the surgery tends to cure not only the apnea and upper airway obstruction but allows normal subsequent growth and development.
46.
Symptomatic enlargement between 18 and 24 months of age is not uncommon, meaning that snoring, nasal airway obstruction and obstructed breathing may occur during sleep.
47.
These processes lead to airway obstruction by constriction of the smooth muscles, edema of the airways, influx of inflammatory cells, and formation of intraluminal mucus.
48.
A laryngeal mask airway can be positioned in the lower oropharynx to prevent airway obstruction by soft tissues and to create a safe channel for ventilation.
49.
This began to change in the early 19th century, when the tracheotomy finally began to be recognized as a legitimate means of treating severe airway obstruction.
50.
The American Medical Association advocates sweeping the fingers across the back of the throat to attempt to dislodge airway obstructions, once the choking victim becomes unconscious.
