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Asthma control and management changes in Japan: questionnaire survey
Takashi Hasegawa1, Toshiyuki Koya, Takuro Sakagami
1Department of General Medicine, Niigata University Medical and Dental Hospital, Japan. htaka@med.niigata-u.ac.jp
Internal Medicine (Tokyo, Japan)
|March 28, 2012
Summary
Asthma control has improved due to guideline-based medication, particularly inhaled corticosteroids. However, some conditions remain uncontrolled, and asthma deaths still occur, requiring further management strategies.
Area of Science:
- Pulmonary Medicine
- Epidemiology
- Clinical Research
Background:
- Asthma management continues to present challenges despite advances in treatment.
- The Niigata Asthma Treatment Study Group has collected longitudinal data on asthma management problems since 1998.
Purpose of the Study:
- To investigate changes in asthma control and management over two-year intervals from 1998 to 2008.
- To identify and discuss future challenges in asthma management based on collected data.
Main Methods:
- Analysis of survey data from approximately 3,000 asthma patients annually between 1998 and 2008.
- Evaluation of trends in asthma attacks, symptoms, medication usage, and emergency episodes.
Main Results:
- Asthma control improved, evidenced by reduced asthma attacks and symptoms, linked to guideline-adherent medication and a 24.1% increase in inhaled corticosteroid use.
- No significant improvement in asthma control was observed for certain conditions regarding peak flow meter use, leukotriene receptor antagonist use, and oral sustained-released theophylline use between 2002 and 2008.
- There was no reduction in emergency episodes or asthma-related deaths during the study period.
Conclusions:
- Current asthma management, guided by medication changes and inhaled corticosteroid use, shows progress in clinical settings.
- Persistent issues include lack of improvement in some asthmatic conditions and the continued occurrence of emergency episodes and asthma deaths.
- Future asthma management strategies must address these specific areas of concern.
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