Airway smooth muscle and long-term clinical efficacy following bronchial thermoplasty in severe asthma.
Thorax
; 79(4): 359-362, 2024 Mar 15.
Article
in En
| MEDLINE
| ID: mdl-38346871
ABSTRACT
The mechanism of action of bronchial thermoplasty (BT) treatment for patients with severe asthma is incompletely understood. This study investigated the 2.5-year impact of BT on airway smooth muscle (ASM) mass and clinical parameters by paired data analysis in 22 patients. Our findings demonstrate the persistence of ASM mass reduction of >50% after 2.5 years. Furthermore, sustained improvement in asthma control, quality of life and exacerbation rates was found, which is in line with previous reports. An association was found between the remaining ASM and both the exacerbation rate (r=0.61, p=0.04 for desmin, r=0.85, p<0.01 for alpha smooth muscle actin (SMA)) and post-bronchodilator forced expiratory volume in 1 s predicted percentage (r=-0.69, p=0.03 for desmin, r=-0.58, p=0.08 for alpha SMA). This study provides new insight into the long-term impact of BT.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Asthma
/
Bronchial Thermoplasty
Type of study:
Prognostic_studies
Aspects:
Patient_preference
Limits:
Humans
Language:
En
Journal:
Thorax
Year:
2024
Document type:
Article
Affiliation country: