Pediatric Infection and Vaccine

  • 제22권3호
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  • Pages.178-185
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  • 2015
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  • 2384-1079(pISSN)
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  • 2384-1087(eISSN)
대한소아감염학회 (The Korean Society of Pediatric Infectious Diseases)
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항생제 사용량 변화에 따른 그람음성균주의 항생제 내성률의 변화 양상

The Impact of the Antibiotic Burden on the Selection of its Resistance among Gram Negative Bacteria Isolated from Children

  • 김서희 (울산대학교 의과대학 서울아산병원 소아청소년과) ;
  • 유리나 (울산대학교 의과대학 서울아산병원 소아청소년과) ;
  • 이진아 (울산대학교 의과대학 서울아산병원 소아청소년과)
  • Kim, Seohee (Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Yoo, Reenar (Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Lee, Jina (Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine)
  • 투고 : 2015.07.12
  • 심사 : 2015.09.09
  • 발행 : 2015.12.25
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초록

목적: 국내 소아 그람음성균혈증에서 항생제 내성변화 및 항생제 사용량과의 관계를 분석하였다. 방법: 최근 10년간 18세 이하 입원 환자의 혈액에서 분리된 그람음성균의 항생제 내성률 변화 및 항생제 사용량과의 관계를 분석하였다. 결과: 폐렴막대균, 대장균, 녹농균, 아시네토박터 바우마니의 분리율은 연간 혈액배양 1,000건당 각각 4.6례, 3.5례, 3.4례 및 2.2례였다. 폐렴막대균에서 광범위 세팔로스포린에 대한 내성변화는 없었으나 2010년부터 카바페넴 내성 폐렴막대균이 동정된 후 점차 빈도가 증가하였다. 대장균의 광범위 세팔로스포린 내성이 10%에서 50%로 아시네토박터 바우마니의 카바페넴 내성이 11%에서 71%로 크게 증가하였다(P for trend <0.01). 녹농균은 여러 항생제에 높은 내성을 보였으나 유의한 내성변화를 보이지 않았다. 대장균의 cefepime 내성과 cefepime 사용량 사이에 유의한 양의 상관관계를 보였다(r=0.900, P=0.037). 결론: 국내 소아에서 발생한 그람음성균 균혈증 분석시 카바페넴 및 광범위 세팔로스포린 내성이 증가하였고 일부에서 항생제 사용량과의 관련성을 확인하였다. 이는 원내 경험적 항생제 결정시 중요한 고려 사항이며 추후에도 지속적인 원내 항생제 사용량 및 내성률에 대한 감시가 필요하겠다.

Purpose: We investigated trends in antibiotic pressure and the antibiotic susceptibility of gram negative bacteria isolated from Korean children over 10 consecutive years. Methods: From January 2004 to December 2013, the antibiotic susceptibility of Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa, and Acinetobacter baumannii blood isolates obtained from children <18 years of age was determined according to the 2009 Clinical and Laboratory Standards Institute guidelines. Antibiotic consumption data were also analyzed. Results: The prevalence of K. pneumoniae, E. coli, P. aeruginosa, and A. baumannii bacteremia was 4.6, 3.5, 3.4, and 2.2 cases/1,000 blood cultures/year, respectively. In K. pneumoniae, resistance to the third and fourth cephalosporin did not increase significantly. However, carbapenem-resistant K. pneumoniae first appeared in 2010, and the resistance rate increased to 9% between 2012 and 2013. Resistance to 3rd and 4th cephalosporin increased from 10% to 50% in E. coli, and resistance to carbapenem rose abruptly from 11% to 71% in A. baumannii (P for trend <0.01). However, such an increase of resistance was not observed in P. aeruginosa. There is a positive correlation between the resistance rate of cefepime in E. coli and the consumption of cefepime (r=0.900, P=0.037). Conclusion: The significant burden of antibiotic consumption and the high prevalence of antibiotic resistance to gram negative pathogen isolated from bacteremic children were observed. Empirical antibiotics should be wisely selected, and continued efforts to decrease the overall antibiotic pressure are mandatory, especially in highly resistant situations.

키워드

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