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RISS 인기검색어
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- 저자 : (Charies D . Sands) (검색결과 1 건)
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소아 기관지 천식 환아에서 Prednisolone 이 Theophylline 의 대사에 미치는 영향에 관한 연구
정혜영(Hyea Yeong Chung),이희정(Hee Jung Lee),윤운기(Un Ki Youn),오지섭(Ji Sub Oh),류환선(Hwan Seon Ryu),손기호(Kie Ho Sohn),(Charies D . Sands) 대한소아알레르기호흡기학회(구 대한소아알레르기 및 호흡기학회) 1993 소아알레르기 및 호흡기학회지 Vol.3 No.1
N/A Theophylline is widely used in pediatric patients for the treatment of asthma and neonatal apnea. To achieve adequate bronchodilation and avoid toxicity, it is generally accepted that the serum theophylline concentration should be maintained between 10 and 20㎍/ml. Concentrations greater than 20㎍/ml are associated with an increased incidence of toxicity. Clinical effectiveness and toxicity are clearly related to the serum concentrations. Thus, it is important to understand factors which might alter theophylline pharmacokinetics. Prednisolone has been reported to both increase and decrease theophylline serum concentrations. Clinical experience at our hospital (one case) suggested that there might be an interaction between prednisolone and theophylline that can potentially results in clinically significant changes in theophylline serum concentrations. Thus, we studied eleven asthmatic children, who were admitted to our hospital and received oral sustained release theophylline and prednisolone. The mean serum theophylline concentration of single therapy group (phase 1) was 8.10㎍/ml and of concomitant administered prednisolone group (phase 2) was 8.39㎍/ml. On basis of serum theophylline concentrations, we had taken the volume of distribution (Vd), half life (t1/2) and calculated clearance (Cl), in each of phase 1 and 2. The mean clearance of phase 1 was 67.37ml/㎏/hr and of phase 2 was 67.85ml/㎏/hr. The difference between mean serum theophylline concentration and clearance in the single therapy group (phase 1) compared with concomitant administered prednisolone therapy group (phase 2) was not statistically significant. (p>0.05) This suggests that prednisolone does not affect the metabolism of theophylline and does not alter serum concentration of theophylline.
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