Addition of Theophylline or Increasing the Dose of Inhaled Corticosteroid in Symptomatic Asthma: A Meta-Analysis of Randomized Controlled Trials
Yonsei Medical Journal
; : 268-275, 2011.
Article
in En
| WPRIM
| ID: wpr-68181
Responsible library:
WPRO
ABSTRACT
PURPOSE: Low-dose theophylline has anti-inflammatory effects. The aim of this study was to evaluate the effects of adding theophylline compared with increasing the dose of inhaled corticosteroid (ICS) on symptomatic asthma. MATERIALS AND METHODS: The associated literature was acquired through deliberate searching and selected based on the established inclusion criteria for publications. The extracted data were further analyzed by a meta-analysis RESULTS: Four randomized, controlled, parallel studies were selected. Addition of theophylline produced a greater increase of forced expiratory volume in one second as %predicted (FEV1pred) by 2.49% [95% confidence interval (CI) 1.99-3.00; z = 9.70; p < 0.001], compared with increasing the dose of ICS. There was no difference between the two treatments in terms of peak expiratory flow (PEF). CONCLUSION: Addition of theophylline to ICS has similar therapeutic effects on improving lung function as increasing the dose of ICS in the treatment of symptomatic asthma.
Key words
Full text:
1
Index:
WPRIM
Main subject:
Asthma
/
Theophylline
/
Randomized Controlled Trials as Topic
/
Forced Expiratory Volume
/
Treatment Outcome
/
Adrenal Cortex Hormones
/
Anti-Asthmatic Agents
Type of study:
Clinical_trials
/
Diagnostic_studies
/
Prognostic_studies
/
Systematic_reviews
Limits:
Humans
Language:
En
Journal:
Yonsei Medical Journal
Year:
2011
Type:
Article