’Zapping' air passages may bring relief for severe asthma
Bronchial thermoplasty shrinks smooth muscle in the lungs, which prevents them from tightening up and causing an attack. The U.S. FDA approved the treatment for adults with severe asthma in 2010.

The study included 284 American and Canadian patients between 18 and 65 years of age who had bronchial thermoplasty. About 80% were followed for five years. They had been taking corticosteroids and long-acting beta-agonists to control their asthma. Their asthma attacks, emergency visits, hospitalizations and medication use were tracked for 12 months prior to surgery and for five years after.

After five years, 9.7% were using oral corticosteroids, compared to 19.4% before the surgery. In all, 77.8% had severe attacks before the surgery, compared to 42.7% five years later. Hospitalizations dropped from 16.1% of patients to 4.8% and emergency department visits from 29.4% to 7.9% by year five. Surgery is an alternative for those people who don't respond well to other treatments.

Source: https://www.sciencedirect.com/science/article/abs/pii/S0012369221042744?via=ihub
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