Research progress of bronchial thermoplasty for refractory bronchial asthma

Bronchial thermoplasty (BT) is an emerging non-pharmacological treatment, which could reduce the contraction of the trachea viacontrolled radiofrequency thermal ablation of the airway smooth muscle (ASM), and hasrelatively good efficacy and high safety.BThas been approved by the US Food and Drug Administration (FDA) and the China Food and Drug Administration (CFDA) for clinical treatment of refractory bronchial asthma.This article reviews the working principle, operation method, and development status of bronchial thermoplasty.