How Long Does Bronchial Thermoplasty Last?

Bronchial thermoplasty is a procedure to heat and destroy some of the muscle lining the bronci, or airways into the lung. This prevents the bronci from spasming as much, preventing asthma attacks.

Bronchial thermoplasty is a procedure used to treat severeasthma。它包括控制交付治疗radiofrequency energy to the walls of the lung airways (bronchi). Duringinhalation, air travels through the nose and mouth into the trachea (wind pipe). The trachea further divides into two tubes called bronchus (bronchi). The bronchi branch out into smaller tubes calledbronchioles。

Bronchial thermoplasty heats the bronchi to reduce the amount of smooth muscle present in theairwaywall, reducing the capacity of the immune system to cause the kind of bronchoconstriction that leads toasthmaattacks.

Bronchial thermoplasty is normally used in patients with severe, persistentasthmawho do not respond well to medical treatment. The treatment is relatively safe and effective.

Bronchial thermoplasty provides significant improvement of symptoms in patients with asthma, but it does not completely cure asthma. The benefits include the following:

• Reduction in asthma attacks
• Reduction in emergency room visits for respiratory symptoms
• Reduction in days lost from work, school or other daily activities due toasthma symptoms
• Reduction in hospitalizations for respiratory symptoms

Bronchial thermoplasty is not recommended in following conditions:

• Psychologically unstable patient
• Poor cardiac (heart) status
• Coagulopathy (bleeding disorder)
• Consumption of high-dose steroids
• Severe underlying medical conditions

Factors that increase post-procedure risk include the following:

• Advanced age
• Coronary artery disease
• Chronic obstructive pulmonary disease(COPD) or asthma
• Extensive lung resection
• Immunocompromised status
• Morbidobesity
• Smokinghistory

Before the procedure

• The surgeon performs a complete physical assessment, along with radiological tests (X-ray, computed tomography scan,angiography) and laboratory tests.
• The patient is advised toquit smokingtobacco before surgery, assmokingdelays the healing process.
• The patient is required to fast for up to 12 hours before surgery. Consent for the procedure is obtained prior to surgery.

During the procedure

• Bronchial thermoplasty is performed using a flexible bronchoscope during three separate outpatient procedures three weeks apart.
• Radiofrequency energy is delivered to a wire basket attached to the top of the catheter, in which thermal energy warms the lining of targeted airways to reduce airway smooth muscle mass.
• It helps to reduce, debulk, or partially eliminate smooth muscle tissue.
• The duration of each treatment lasts for about an hour.

After the procedure

• Patients are administered painkillers and antibiotics.
• 病人可以回家,三个four hours after the procedure.

The procedure is relatively safe, and complications are rare. Some possible complications are:

• Transient increase and worsening of respiratory symptoms
• Recurrent Atelectasis (collapse of the part of the lung)
• Lungabscess
• Hemoptysis (coughingblood)
• Anxiety
• Headaches
• Nausea