Childhood Kidney Diseases

Korean Society of Pediatric Nephrology (대한소아신장학회)
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Clinical Significance of Extended-Spectrum ${\beta}$-Lactamase Producing $Escherichia$ $coli$ in Pediatric Patients with Febrile Urinary Tract Infection

발열성 소아 요로감염에서 Extended-Spectrum ${\beta}$-Lactamase 생성 $Escherichia$ $coli$의 임상적 의의

  • 박철 (고려대학교 의과대학 소아과학교실) ;
  • 김민상 (고려대학교 의과대학 소아과학교실) ;
  • 김미경 (고려대학교 의과대학 소아과학교실) ;
  • 임형은 (고려대학교 의과대학 소아과학교실) ;
  • 유기환 (고려대학교 의과대학 소아과학교실) ;
  • 홍영숙 (고려대학교 의과대학 소아과학교실) ;
  • 이주원 (고려대학교 의과대학 소아과학교실)
  • Received : 2012.03.08
  • Accepted : 2012.04.05
  • Published : 2012.04.30
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Abstract

Purpose: The incidence of community-acquired urinary tract infection (UTI) due to extended-spectrum ${\beta}$-lactamase producing $Escherichia$ $coli$ (ESBL(+) $E.$ $coli$) has increased worldwide. ESBL causes resistance to various types of the newer ${\beta}$-lactam antibiotics, including the expanded spectrum cephalosporins and monobactams. We aimed to investigate the severity of UTI and associated genitourinary malformations in children with febrile UTI caused by ESBL(+) $E.$ $coli$. Methods: We retrospectively reviewed the medical records of 290 patients diagnosed as febrile UTI caused by $E.$ $coli$ between January 2008 and October 2010 at Korea University Medical center. We classified the patients into two groups with ESBL(+) and ESBL(-) $E.$ $coli$ group according to the sensitivity of urine culture. Fever duration, admission period, white blood cell (WBC) counts and C-reactive protein (CRP) in peripheral blood, the presence of hydronephrosis, cortical defects, vesicoureteral reflux (VUR) and renal scar were compared between the two groups. Results: Patients with ESBL(+) $E.$ $coli$ were 32, and those with ESBL(-) $E.$ $coli$ were 258. If we excluded those tested with a sterile urine bag, patients with ESBL(+) $E.$ $coli$ were 22, and those with ESBL(-) $E.$ $coli$ were 212. Whether the results of sterile urine bag tests were included or not, there was no significant difference in all parameters between the two groups statistically. Conclusion: Our data shows that ESBL(+) $E.$ $coli$ may not be related to the severity of UTI and associated genitourinary malformations.

목적: 광범위 베타락탐 분해 효소(extended-spectrum ${\beta}$-lactamase, ESBL) 생성 $E.coli$에 의한 지역 사회 요로감염의 빈도가 전세계적으로 증가하고 있다. ESBL은 광범위 cephalosporin 계 항생제와 monobactam 계 항생제를 포함한 다양한 새로운 ${\beta}$-lactam 계 항생제에 대하여 내성을 일으킨다. 본 연구에서는 발열성 소아 요로감염에서 ESBL(+) $E.coli$의 감염 여부가 요로감염의 중증도, 동반 비뇨기계 기형과 연관이 있는지 알아보고자 하였다. 방법: 2008년 1월부터 2010년 10월까지 고려대학교 병원에서 입원 치료한 소아 중 $E.coli$에 의한 발열성 요로감염 소아 290명을 대상으로 하였다. 요 배양검사에서 항생제 감수성 검사 및 ESBL 생성 여부에 따라서 ESBL(+) $E.coli$ 군과 ESBL(-) $E.coli$ 군으로 나누어 입원 전후 발열 기간, 입원 기간, 말초 혈액 내 백혈구 수와 혈청 C-반응성 단백, 농뇨의 동반 여부, 수신증의 유무, 신 스캔에서 초기 신 결손의 유무, 신 반흔의 유무, 방광 요관 역류의 유무 등의 항목들에 대하여 두 군간에 후향적 비교 분석을 시행하였다. 결과: 대상 소아 총 290명 중 ESBL(+) $E.coli$ 군은 32명, ESBL(-) $E.coli$ 군은 258명이었다. 무균 채뇨백으로 검사를 진행한 소아는 56명이었으며, 이를 제외한 소아는 총 234명으로 ESBL(+) $E.coli$ 군은 22명, ESBL(-) $E.coli$ 군은 212명이었다. 무균 채뇨백으로 검사를 진행한 소아를 포함했을 때와 제외했을 때 모두 두 군간에 통계학적으로 유의한 차이를 보이는 항목은 없었다. 결론: 저자들은 발열성 소아 요로감염에서 ESBL 생성 $E.coli$ 의 감염 여부가 요로감염의 중증도 및 동반 비뇨기계 기형과의 관련이 없음을 제시하는 바이다.

Keywords

References

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