How Bronchial Thermoplasty Works

See how Bronchial Thermoplasty works to reduce asthma attacks

Fewer asthma attacks means less need for the associated oral steroid treatment—and its side effects. Watch the video to learn more.

BT Video

Bronchial Thermoplasty is clinically proven to reduce asthma attacks for at least 5 years

At one-year (versus a placebo treatment), patients with severe asthma who were treated with BT experienced:

Fewer asthma attacks

32% decrease in severe asthma attacks.1

Fewer ER visits 

84% reduction in emergency room visits for respiratory-related symptoms.1

Fewer absences

66% fewer days lost from work, school and daily activities due to asthma.1
Reductions in asthma attacks and ER visits were shown to extend through a 5-year follow-up period.2

Improved Quality of Life

79% of patients who were treated with BT reported a significant improvement in their asthma-related quality of life.1

Alair™ System in 3 outpatient sessions

Bronchial Thermoplasty is delivered by the Alair™ System in 3 outpatient sessions performed by a BT-Certified pulmonologist.
  • Each session treats a different part of the lung to ensure safety.
  • During the procedure a carefully controlled device delivers mild heat to the smooth muscle of the airways in your lungs, reducing the amount of excessive smooth muscle.
  • No incision is needed; BT is performed with a bronchoscope inserted through the nose or mouth.
  • When your BT treatment is complete, you will return to your regular asthma-treating physician to continue managing your asthma.

Side effects and things to know

As with any procedure, there are risks, and individual results may vary. The most common side effect of BT is temporary worsening of respiratory-related symptoms. This side effect typically occurs within a day of the procedure and resolves within 7 days on average with standard care. There is a small (3.4% per procedure) risk of these symptoms requiring hospitalization.1

Your BT treatment will be delayed if you currently have any of the following conditions:
  • An active respiratory infection.
  • A bleeding disorder.
  • An asthma attack in the past 14 days.
  • An increased or decreased dose of the oral steroids for asthma in the past 14 days,
  • Your doctor says you cannot stop taking the following medications prior to the BT procedure: anticoagulants, antiplatelet agents, aspirin or non-steroidal anti-inflammatory medications (NSAIDS).
You are not a candidate for BT if you:
  • Are under 18 years old.
  • Have a pacemaker, internal defibrillator, or other implantable electronic device.
  • Have a known sensitivity to medications required to perform bronchoscopy, including lidocaine, atropine and benzodiazepines.
  • Have been treated previously with BT.