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  • Title: The impact of co-existing seasonal allergic rhinitis caused by Japanese Cedar Pollinosis (SAR-JCP) upon asthma control status.
    Author: Hojo M, Ohta K, Iikura M, Hirashima J, Sugiyama H, Takahashi K.
    Journal: Allergol Int; 2015 Apr; 64(2):150-5. PubMed ID: 25838090.
    Abstract:
    BACKGROUND: Seasonal Allergic Rhinitis Caused by Japanese Cedar Pollinosis (SAR-JCP) is a most common allergic rhinitis, affecting about 40% in Japan, but the influence from SAR-JCP upon asthma is controversial. The purpose of this study is to investigate the effect of coexistence of SAR-JCP upon control status of asthma using SACRA (Self-Assessment of Allergic Rhinitis and Asthma Questionnaire). METHODS: The design was prospective, single-center, observational study. Asthmatic patients were classified into 3 groups, patients without rhinitis, those with perennial rhinitis or those with SAR-JCP from the results of SACRA. The control status of asthma were evaluated by Visual Analog Scale (VAS) in SACRA and Asthma Control Test (ACT) score. They were evaluated twice, from September to January (nonpollen-season) and February to April (pollen-season) and compared. RESULTS: 451 patients were enrolled and 325 cases (72%) were diagnosed as having comorbidity of rhinitis, among which 173 with only perennial rhinitis, while 152 with SAR-JCP. There was no significant difference in asthma control level measured by VAS and ACT score among 3 groups during nonpollen-season. The asthma control level measured by VAS (1.91-2.95) and ACT score (22.7-21.6) got worse during pollen-season among patients with SAR-JCP, even though 84% received treatment for rhinitis. Although it differed according to criteria, asthma control during pollen-season was impaired in 18-38% asthmatic patients with SAR-JCP. CONCLUSION: It is possible to minimize the influence of AR on asthma control by obtaining an accurate diagnosis and providing sufficient treatment for rhinitis.
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