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  • Title: [The utility of the interrupter technique in pediatric asthma].
    Author: Iimura A, Yoshihara S, Arisaka O.
    Journal: Arerugi; 2002 Nov; 51(11):1131-4. PubMed ID: 12486340.
    Abstract:
    Interrupter respiratory resistance (Rint) is a new lung function test for measuring airway resistance. We investigated the utility of the Rint lung function test in pediatric patients with asthma. Thirty seven asthmatic patients with mild or moderate asthma attack (asthma group) and 9 healthy children (control group) were enrolled in the study, and the utility of the Ring test was compared with that of the PEF lung function test. Rint and PEF were measured after the inhalation of saline or beta(2) stimulant, and the values for the asthma and control groups were compared. The rint and PEF values did not change after the inhalation of saline, but both values improved after the inhalation of beta(2) stimulant in the asthma group. In the control group, the PEF and Rint values measured after saline or beta(2) stimulant were not significantly different. Rint measurements may be more useful than PEF tests for evaluating therapeutic responses to mild asthma attacks in children. These findings suggest that Rint is a useful respiratory function test for evaluating children with asthma.
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