Looking on the brighter side of childhood asthma

The effect of a widespread genetic variant that increases the risk for childhood asthma can be neutralized. A new study shows that young infants are particularly responsive to the positive influence of exposure to farm dust.

Nov 26, 2015
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Health-care options as physician shortage looms

The Association of American Medical Colleges projects that the nation will face a shortage of 12,000 to 31,000 primary-care physicians by 2025. So it's no wonder you may be finding it harder to find a doctor or to schedule ...

Nov 25, 2015
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Kids with asthma can avoid the ER by avoiding the ER

Asthma is the most common chronic disease in children, and one of the most difficult to manage, which is one of the reasons there are so many emergency department visits for asthma sufferers in the US. A new study has determined ...

Nov 05, 2015
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Substantial increase in costs for uncontrolled asthma

(HealthDay)—A considerable proportion of patients with mild to moderate asthma are symptomatically uncontrolled, and uncontrolled asthma is associated with significantly increased costs, according to a study published online ...

Nov 12, 2015
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Vitamin D supplementation doesn't cut colds in asthma

(HealthDay)—Vitamin D supplementation does not reduce cold severity or frequency among adults with mild-to-moderate asthma, according to a study published online Nov. 5 in the American Journal of Respiratory and Critical ...

Nov 18, 2015
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Asthma (from the Greek άσθμα, ásthma, "panting") is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include wheezing, coughing, chest tightness, and shortness of breath. Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second (FEV1), and peak expiratory flow rate. Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic).

It is thought to be caused by a combination of genetic and environmental factors. Treatment of acute symptoms is usually with an inhaled short-acting beta-2 agonist (such as salbutamol). Symptoms can be prevented by avoiding triggers, such as allergens and irritants, and by inhaling corticosteroids. Leukotriene antagonists are less effective than corticosteroids and thus less preferred.

Its diagnosis is usually made based on the pattern of symptoms and/or response to therapy over time. The prevalence of asthma has increased significantly since the 1970s. As of 2010, 300 million people were affected worldwide. In 2009 asthma caused 250,000 deaths globally. Despite this, with proper control of asthma with step down therapy, prognosis is generally good.

This text uses material from Wikipedia licensed under CC BY-SA

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