Asthma

Asthma (from the Greek ἅσθμα, 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.

Read more about AsthmaSigns and Symptoms, Causes, Diagnosis, Prevention, Management, Prognosis, Epidemiology, History

Other articles related to "asthma":

Asthma - History
... Asthma was recognized in Ancient Egypt and was treated by drinking an incense mixture known as kyphi Officially recognized as a specific respiratory ... During the 1930s–50s, asthma was considered as being one of the 'holy seven' psychosomatic illnesses ... that the treatment of depression was especially important for individuals with asthma ...
La Jolla Institute For Allergy And Immunology - Research - OX40 Ligand in Asthma
... A major asthma discovery by a researcher at the Institute has been licensed by MedImmune, a biotechnology company and wholly owned subsidiary of AstraZeneca PLC ... in the development of a potential biologics drug for treating asthma ... which demonstrated the pivotal role of a protein called the OX40 ligand in asthma ...
La Jolla Institute For Allergy And Immunology - Research - Allergy and Asthma Research
... Asthma accounts for one-quarter of all emergency room visits in the U.S ... It might come as a surprise to many that asthma results from the good intentions of the body, gone bad ... Asthma can occur when T cells, the body's disease-fighting cells, respond to a stimulus and cause inflammation of the bronchial tubes, making breathing difficult ...
Seratrodast - Clinical Experience - Asthma
... function parameters such as FEV1, FVC and PEF, and clinical symptoms of asthma such as wheezing, shortness of breath, cough, expectoration and chest tightness ... zafirlukast 20 mg, seratrodast was observed to have a better control over asthma compared to zafirlukast (71.68% vs ... acetylcholine with significant improvement in PEF, clinical symptoms of asthma and sputum ECP levels ...
Creola Bodies
... a histopathologic finding indicative of asthma ... are ciliated columnar cells sloughed from the bronchial mucosa of a patient with asthma ... Other common findings in the sputum of asthma patients include Charcot-Leyden crystals, Curschmann's Spirals, and eosinophils (and excessive amounts of sputum) ...