What is Severe Asthma?

Severe asthma is a form of asthma that does not respond well to standard high-dose inhaled corticosteroids and long-acting bronchodilators, requiring additional interventions. It affects a small percentage of asthma patients but accounts for a disproportionate share of healthcare costs and morbidity. Key facts include persistent symptoms, frequent exacerbations, and reduced lung function, often necessitating advanced treatments like biologic therapy or bronchial thermoplasty.