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Asthma Control during the Year after Bronchial Thermoplasty ABSTRACT Background Bronchial thermoplasty is a bronchoscopic procedure to reduce the mass of airway
rain, creating it or otherwise modifying it? During the spraying cycles many individuals experience bronchial distress, heart palpitations, asthma and other alarming
Respiratory - Acute Sinusitis - Common Cold - Acute Bronchitis - Acute Rhinitis - Acute Tonsillitis - Bronchial Asthma Eye - Acute Conjunctivitis (pink eye) - Nearsightedness
category suffer from this condition silently, remaining undiagnosed. According to the Centers for Disease Control (CDC), children, low income, and non-Hispanic minority
forms of treatment, and are commonly used together. Moxibustion is used for ailments such as bronchial asthma, bronchitis, certain types of paralysis, and arthritic
Submitted by kary911 on April 1, 2007
Category: Science
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ABSTRACT
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Background Bronchial thermoplasty is a bronchoscopic procedure to reduce the mass of airway smooth muscle and attenuate bronchoconstriction. We examined the effect of bronchial thermoplasty on the control of moderate or severe persistent asthma.
Methods We randomly assigned 112 subjects who had been treated with inhaled corticosteroids and long-acting 2-adrenergic agonists (LABA) and in whom asthma control was impaired when the LABA were withdrawn to either bronchial thermoplasty or a control group. The primary outcome was the frequency of mild exacerbations, calculated during three scheduled 2-week periods of abstinence from LABA at 3, 6, and 12 months. Airflow, airway responsiveness, asthma symptoms, the number of symptom-free days, use of rescue medication, and scores on the Asthma Quality of Life Questionnaire (AQLQ) and the Asthma Control Questionnaire (ACQ) were also assessed.
Results The mean rate of mild exacerbations, as compared with baseline, was reduced in the bronchial-thermoplasty group but was unchanged in the control group (change in frequency per subject per week, 0.16±0.37 vs. 0.04±0.29; P=0.005). At 12 months, there were significantly greater improvements in the bronchial-thermoplasty group than in the control group in the morning peak expiratory flow (39.3±48.7 vs. 8.5±44.2 liters per minute), scores on the AQLQ (1.3±1.0 vs. 0.6±1.1) and ACQ (reduction, 1.2±1.0 vs. 0.5±1.0), the percentage of symptom-free days (40.6±39.7 vs. 17.0±37.9), and symptom scores (reduction, 1.9±2.1 vs. 0.7±2.5) while fewer puffs of rescue medication were required. Values for airway responsiveness and forced expiratory volume in 1 second did not differ significantly between the two groups. Adverse events immediately after treatment were more common in the bronchial-thermoplasty group than in the control group but were similar during the period from 6 weeks to 12 months after treatment.
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