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  • Title: [State of the art of the inhalation therapy of asthma].
    Author: Gillissen A, Welte T.
    Journal: Med Klin (Munich); 2002 Dec 15; 97 Suppl 2():12-4. PubMed ID: 12593176.
    Abstract:
    The current concept of asthma pathogenesis is that a characteristic chronic inflammatory process involving the airway wall causes the development of airflow limitation and increased responsiveness, thereby predisposing the airways to narrow in response to a variety of specific (allergic) or unspecific stimuli. Medications for asthma are used to reverse and prevent symptoms and airflow limitation and include controllers and relievers. The major advantage of delivering drugs directly into the airways via inhalation is that high concentrations can be delivered more effectively to the airways, and systemic side effects are avoided or minimized. Bronchodilators with or without anti-inflammatory substances are used as basic therapeutic approach in these patients. The stepwise approach to therapy recommends that the number/type and frequency of medications are increased with increasing asthma severity by adding systemic medications to existing inhalation therapy (step III-IV in asthma management guidelines). Combination therapy using a long acting beta 2-agonist and a glucocorticosteroid resulted in higher lung function improvement, and was superior in reduction of exacerbation rates compared with an inhaled glucocorticosteroid alone. Hence, the development of a fixed combination containing both substances in one device is a logic consequence, and thus, simplifying asthma therapy.
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