Related Experiment Video
Updated: May 11, 2026
14:39
Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
Published on: November 4, 2010
Bronchial thermoplasty failure in severe persistent asthma: a case report
Diana C Doeing1, Aliya N Husain, Edward T Naureckas
1Department of Medicine, The University of Chicago, Chicago, IL Chicago, IL 60637, USA.
Summary
Bronchial thermoplasty (BT) may fail to control severe asthma. A case study found persistent airway smooth muscle hyperplasia after BT, indicating potential treatment failure in some patients.
Area of Science:
- Pulmonary Medicine
- Respiratory Disease Research
Background:
- Bronchial thermoplasty (BT) is an emerging treatment for severe persistent asthma uncontrolled by standard therapies.
- BT uses radiofrequency energy to ablate airway smooth muscle, aiming for long-term asthma control.
- The long-term efficacy and potential for treatment failure in humans remain under-investigated.
Observation:
- A 62-year-old female with severe, refractory asthma underwent BT without immediate complications.
- Despite treatment, the patient experienced persistent severe symptoms and multiple exacerbations.
- Repeat biopsies six months post-BT revealed persistent smooth muscle hyperplasia in treated airways.
Findings:
- This case is the first to document a failure of bronchial thermoplasty to reduce airway smooth muscle.
- Persistent airway smooth muscle hyperplasia was observed despite BT treatment.
- The patient's asthma remained uncontrolled and refractory to multiple therapies.
Implications:
- This case suggests that bronchial thermoplasty may not be effective for all patients with severe asthma.
- It highlights the potential for BT treatment failure and the need to identify BT-refractory patient profiles.
- Further research is warranted to understand BT efficacy and identify patient subgroups who may not benefit.
Related Concept Videos
01:24Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
01:24Chest Physiotherapy
Chest Physiotherapy (CPT) is a therapeutic technique used in respiratory care to improve ventilation, clear bronchial secretions, and enhance the efficiency of respiratory muscles. This therapy includes three primary procedures: postural drainage, percussion, and vibration. It can be performed on spontaneously breathing patients and those who are intubated and mechanically ventilated.
Purpose
CPT is primarily used for patients with excessive bronchial secretions who have difficulty clearing...
Purpose
CPT is primarily used for patients with excessive bronchial secretions who have difficulty clearing...
01:13Asthma III: Clinical Manifestations
Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...
01:23Chronic Obstructive Pulmonary Disease II: Emphysema
Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.
01:26Flail Chest-II
Managing flail chest, a condition characterized by a segment of the chest wall moving independently from the rest of the thoracic cage, requires a comprehensive approach. It includes a thorough assessment of the patient's condition, a diagnostic evaluation to determine the extent of the injury, and the implementation of appropriate medical interventions tailored to the individual's needs.
Assessment:
1. Clinical Evaluation:
History:
Assessment:
1. Clinical Evaluation:
History:
01:20Asthma: Pathogenesis and Management
Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.