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Pediatric asthma
Definition:
Asthma is a chronic condition in which narrowing of the passages from the lungs to the nose and mouth (airways) leads to difficulty breathing. These changes commonly occur in response to changes in the environment, including weather, allergens (such as dog or cat dander, mold, or dust), foods, or respiratory infections (colds). Alternative Names:
Asthma - pediatric
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Causes, incidence, and risk factors:
Asthma is a disease of the respiratory system. It is commonly seen in children, although it can also occur in adults. Among children, asthma is a leading cause of hospitalization, chronic disease, and school absenteeism. In people with asthma, the airways that run from the nose to the lungs are overly sensitive. Asthma is the excessive response of these airways to a "trigger" such as dust in the air. It involves swelling and inflammation of the airways, and reversible tightening of the tiny muscles that surround the airways (bronchospasm). In severe cases of asthma, damage to the lungs can accumulate over time, resulting in permanent narrowing of the airways. Children with asthma may be able to breathe normally most of the time. When they encounter a trigger, however, an attack (exacerbation) can occur. Below is a list of common asthma triggers. - tobacco smoke
- dust
- pollen
- exercise
- viral infections, such as the common cold
- animals (hair or dander)
- chemicals in the air or in food
- mold
- changes in weather (most often cold weather)
- strong emotions
- aspirin and other medications
In recent years, there has been a worldwide increase in the number of children with asthma. This trend has been linked to environmental factors, including air pollution. However, it is important to understand that indoor triggers can play just as much of a role as outdoor triggers in bringing on an asthma attack.
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