Application of bronchial thermoplasty in extremely severe bronchial asthma

Bronchial thermoplasty is a new technique that ablate airway smooth muscle to treat bronchial asthma (asthma), with the principle of radiofrequency ablation.In recent years, the effectiveness and safety of bronchial thermoplasty for treatment of severe asthma patients have been confirmed by a number of clinical studies.At present, there has not a guideline to clarify the applicable population of bronchial thermoplasty in China, and we still use the standards of foreign clinical trials, excluding the extremely severe asthma population.However, these patients are the ones most in need of medical treatment.Thus, a retrospective analysis which includes clinical studies involving severe asthma patients is need to assess the effectiveness and safety of bronchial thermoplasty in these patients. Key words: Bronchial asthma; Bronchial thermoplasty; Airway smooth muscle; Effectiveness and safety