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Bronchospasm—Adult

Reactive Airway Disease, Reactive Airways Dysfunction Syndrome, Occupational Asthma

Ree-Ac-Tiv Air-Way Disease

 

Definition

Bronchospasm is a reversible narrowing of the airways in response to a stimulus. Bronchospasm is not a diagnosis.

Reactive airway disease is a term that may be used for a one-time event or until a more specific diagnosis can be made. If the condition lasts more than 6 months, it may be called asthma.

Reactive airways dysfunction syndrome is used to define a chronic disease of bronchospasm after exposure to high levels of an irritating chemicals.

Airways to Lungs

Copyright © Nucleus Medical Media, Inc.

 

Causes    TOP

Bronchospasm symptoms is caused by an increased sensitivity of the airways to certain triggers, such as allergens, cold air, or chemicals. These triggers cause tightening of the muscles around the airway. At the same time, the lining of the airways swell and produce excess mucus. All of these reactions narrow the airways and make it difficult to breathe.

It is not clear what causes the tissue to overreact. It may be caused by a combination of factors including environment, genetics, and biology.

 

Risk Factors    TOP

Factors that may increase your chance of bronchospasm include:

  • Family history of reactive airway disease or asthma
  • Smoking
  • Occupational exposure to chemicals, smoke, fumes or vapours. This may include:
    • Fire fighters, police, and other emergency services workers
    • Cleaners
    • Farmers
    • Welders
 

Symptoms    TOP

Bronchospasm may result in:

  • Coughing
  • Tightness in the chest
  • Wheezing
  • Shortness of breath
  • Difficulty breathing
 

Diagnosis    TOP

You will be asked about your symptoms and medical history. A physical exam will be done. Your doctor may ask about possible triggers that were around when you developed symptoms.

Further testing may be done to look for the presence of allergies or other pulmonary issues. Tests may be done to look for pneumonia, viral infection, smoke inhalation, chemical exposure, or emphysema.

 

Treatment    TOP

Treatment options include:

Medications

Medications may be used to prevent symptoms or treat a flare up. Options include:

  • Bronchodilators to open the airways
  • Corticosteroid medications to reduce inflammation
  • Mast cell stabilizers or leukotriene inhibitors that can prevent inflammation
  • Combination of these medications

Some of these medications may be delivered with an inhaler or a machine that makes a medicated mist.

Preventing Flare up

Keep a journal of flare ups and what was happening when they occurred. This may help you discover your triggers. When you know your triggers, take steps to avoid them.

Steps that may help you prevent future flare-ups include:

  • Take precautions by getting the seasonal flu and pneumonia vaccines.
  • Avoiding triggers:
    • If chemicals and strong scents are triggers:
      • Avoid breathing in chemicals or anything with a strong scent like perfumes, cigarette smoke, or scented candles.
      • Use an exhaust ventilation system or an approved respiratory protection device.
      • If the chemical is needed in your daily life or work, consider using substitute that is less irritating.
      • Be cautious around wood-burning stoves or fireplaces. These can be triggers for some.
    • If allergens are a trigger:
      • Keep windows closed when possible. This is especially important during high pollen seasons in late morning and afternoon.
      • Have someone else vacuum for you. If you must vacuum, wear a dust mask. Consider getting HEPA filters for your vacuum cleaner.
      • Use dust cover on mattress or pillows. If you don't have a cover on your pillow, and your pillow is washable, wash it once per week in hot water.
      • Wash all towels and linens in hot water.
      • Avoid exposure to pets. Do not allow pets in the bedroom.

Learn the early warning signs of a flare-up. This will allow you to treat the condition before it worsens. These signs may include wheezing, shortness of breath, and dry cough.

 

Prevention    TOP

There is no known way to prevent bronchospasm.

RESOURCES:

American Academy of Asthma & Immunology
http://www.aaaai.org

Family Doctor—American Academy of Family Physicians
http://familydoctor.org

CANADIAN RESOURCES:

The Asthma Society of Canada
http://www.asthma.ca

Health Canada
http://www.hc-sc.gc.ca

REFERENCES:

Reactive airways dysfunction syndrome. Health Navigator New Zealand website. Available at: https://www.healthnavigator.org.nz/health-a-z/r/reactive-airways-dysfunction-syndrome/. Updated August 23, 2017. Accessed August 28, 2017.

Asthma in adults and adolescents. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T114449/Asthma-in-adults-and-adolescents . Updated February 22, 2017. Accessed August 28, 2017.

Brooks S. Reactive airways dysfunction syndrome and considerations of irritant-induced Asthma. J Occup Environ Med. 2013 Sep;55(9):1118-20.

Chronic cough in adults. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T146529/Chronic-cough-in-adults . Updated February 22, 2017. Accessed August 28, 2017.



Last reviewed September 2018 by EBSCO Medical Review Board Michael Woods, MD, FAAP
Last Updated: 8/28/2017

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