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First page of Asthma

What is asthma? Can it be defined?1  This question is of importance in evaluating respiratory disease in the child for whom euphemisms for asthma have been commonly used, including reactive airway disease (RAD), wheezy bronchitis, obstructive bronchitis, recurrent bronchiolitis, and others. Moreover, the symptoms associated with asthma—wheezing, cough, and dyspnea—are not unique to asthma. They can also be associated with other respiratory disorders.2  Asthma is a heterogeneous disorder that includes various phenotypes and endotypes that share a common final pathway, reversible airway narrowing from bronchial smooth muscle spasm, and airway mucosal inflammation. Treatment decisions and counseling of...

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