The first FDA-approved, non-drug asthma treatment is being offered to patients at Temple University Hospital. A flexible tube containing a wire is passed to the source of an asthma attack, the bronchial tubes. Radio waves emitted by a device at the end of the tube shrink the tissue, making the airway bigger and less likely to constrict. "The procedure has been shown to improve quality of life, reduce asthma attacks and keep people out of the hospital," said Kartik Shenoy of Temple's Lung Center.