bronchoconstriction

(redirected from Airway constriction)
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Related to Airway constriction: Bronchoconstriction, bronchoconstrictor

bronchoconstriction

[¦bräŋ·kō·kən¦strik·shən]
(physiology)
Narrowing of the air passages in bronchi and bronchioles.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In other words, airway constriction could be the most important structural characteristic in association with increased particle deposition efficiency.
In the present case, the substernal goiter extended to both sides of the thorax and had a larger diameter than the thoracic inlet, and airway constriction was revealed, so a full sternotomy was required.
[5] Furthermore, the results of the present study showed that the values of PFT of smokers were significantly increased due to 200 ng inhaled salbutamol indicating some degree of reversibility of the airway constriction in smokers.
After bethanechol administration, a greater percentage of change was seen in airway resistance mainly represented by [R.sub.rs 10]-[R.sub.rs 25] (+106-85%) when compared with the lung resistance mostly represented by [R.sub.rs3]-[R.sub.rs5] (+69-63%), indicating a greater nonperipheral airway constriction response than peripheral airway/lung tissue response.
"In adults with asthma, reduced vitamin D levels are associated with impaired lung function, increased airway constriction and a blunted response to steroids," lead author Dr.
Treatment results in clinical improvements in people with severe asthma by using thermal energy "to reduce the airway smooth muscle responsible for airway constriction in asthma patients, according to the device's manufacturer, Asthmatx.
The researchers found that the amount of methacholine required to provoke airway constriction did not change markedly in girls over that time period.
Hot air blasted through a tube in the nose or mouth is used to reduce the tissue that contributes to airway constriction.
During the out-patient investigative procedure, the Alair System, a bronchial thermoplasty therapy developed by Asthmatx, is used to deliver thermal energy to the airway walls to reduce the amount of airway smooth muscle, the tissue responsible for airway constriction and breathing difficulties in asthma patients.
For example, the smoking of various substances (including marijuana, heroin, and crack cocaine) has been implicated in certain forms of pulmonary damage including airway constriction and obstruction, emphysema, and possibly cancer.
With this inhalable antiasthma drug, airway constriction in the sheep was about a quarter of what it was with no drug.
Even a mild food allergy can cause anaphylaxis if enough is eaten." Anaphylaxis is the most severe allergic reaction the body has, and includes airway constriction, due to swelling of the tongue and throat, low blood pressure, as well as other symptoms, and can lead to death.