Escherichea coli 요로 감염과 non-Escherichea coli 요로 감염 사이의 차이점

Different characteristic between Escherichea coli and non-Escherichea coli urinary tract infection

  • Jung, Hee Jin (Department of pediatrics, IL Sin Christian Hospital) ;
  • Aum, Ji A (Department of pediatrics, IL Sin Christian Hospital) ;
  • Jung, Soo Jin (Department of pediatrics, IL Sin Christian Hospital) ;
  • Hur, Jae Won (Department of pediatrics, IL Sin Christian Hospital)
  • 투고 : 2007.02.05
  • 심사 : 2007.03.27
  • 발행 : 2007.05.15

초록

목 적 : 요로 감염은 소아에서 흔한 세균성 감염 질환이다. 특히 영아나 어린 소아에서의 감염은 수신증이나 방광 요관 역류와 같은 요로의 동반 기형과 관련성이 높다. 이 연구의 목적은 영아와 어린 소아에서 E. coli 에 의한 요로 감염과 E. coli 외의 다른 균에 의한 요로 감염사이의 임상소견과 검사실 소견, 요로계 영상 검사 소견을 비교해 보는 것이다. 방 법 : 2003년 1월부터 2005년 12월까지 부산 일신 기독 병원 소아과에 요로감염으로 입원한 170명의 환아들의 임상 기록을 후향적으로 분석하였다. 모든 환아들은 E. coli 요로 감염과 non-E. coli 요로 감염의 두 그룹으로 나뉘었고 각각의 인구학적 자료, 임상 자료(발열 정도와 기간, 해열 기간, 입원 기간), 요로계 동반 질환(병력과 초음파를 통해)과 감염의 재발(병력과 과거 의무 기록을 통해), 검사실 소견[요 침사 현미경 검사, 말초혈액 백혈구 수, 적혈구(ESR), CRP, 혈청 크레아티닌 수치]을 비교하였다. 결 과 : 요로 감염으로 진단된 170명의 환아 중 114명(67.1%)은 E. coli에 의한 요로 감염이었고 나머지 56명(32.9%)은 다른 요로 감염 균에 의한 감염이었다. Non-E. coli 그룹은 E. coli 그룹에 비해 발병 연령이 더 낮고($0.52{\pm}0.59$세 vs $0.84{\pm}1.39$세, P<0.05), 요로 기형의 동반률이 높고[46례(82.1%) vs 53례(46.5 %), P<0.001], 재발률이 높고, 해열까지의 기간이 더 짧으며, 말초혈액 백혈구수가 더 적고, CRP 수치가 더 낮고, ESR 수치가 더 낮다. 결 론 : Non-E. coli 요로 감염은 E. coli 요로 감염에 비해 발병 연령이 더 어리고, 경한 임상 양상과 검사실 소견을 보이며, 요로 기형의 동반률이 높고 재발률도 높다.

Purpose : Urinary tract infection (UTI) is a common bacterial infectious disease in childhood. Especially UTI in infant and young children is associated with urinary tract anomalies such as hydronephrosis, vesicoureteral reflux. The aim of this study was to compare the clinical and laboratory characteristics, and uroradiologic findings of UTI caused by pathogens other than E. coli with UTI caused by E. coli in infant and young children. Methods : We retrospectively reviewed medical records of 170 infants and children, who had been admitted for UTI to Il Sin Christian Hospital from January 2003 to December 2005. All patients were divided into two groups; E. coli and non-E. coli UTI, and they were compared for demographic data, clinical data (degree and duration of fever, time to defervescence, and length of hospital stay), underlying urinary tract anomalies (by history and ultrasonography), recurrent infection (by history and past medical records), and laboratory data [urinalysis, white blood cells (WBC) count in peripheral blood, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and serum creatinine level]. Results : Of the 170 UTI patients, the number of non-E. coli UTI was 114 (67.1%) and E. coli UTI was 56 (32.9%). As compared to E. coli group, non-E. coli group was younger in age ($0.52{\pm}0.59years$ vs $0.84{\pm}1.39years$, P<0.05), had higher rates of urinary tract anomalies [n=46 (82.1%) vs n=53 (46.5%), P<0.001], higher recurrence rate, shorter time to defervescence, less peripheral blood WBC count, lower level of CRP, lower level of ESR. Conclusion : The characteristics of non-E. coli UTI compared to E. coli UTI was younger age, milder clinical symptoms and signs, higher rates of urinary tract anomalies and higher recurrence rate.

키워드

참고문헌

  1. Rushton HG. Urinary tract infections in children: epidermiology, evaluation and management. Pediatr Clin North Am 1997;44:1133-69. https://doi.org/10.1016/S0031-3955(05)70551-4
  2. Merrick MV, Notghi A, Chalmers N, Wilkinson AG, Uttley WS. Long term follow up to determine the prognostic value of imaging after urinary tract infection. Part 2. Scarring. Arch Dis Child 1995;72:393-6 https://doi.org/10.1136/adc.72.5.393
  3. Decter Ross M. Vesicourethral reflux. Pediatr Rev 2001;22: 205-9 https://doi.org/10.1542/pir.22-6-205
  4. Subcommittee on Urinary Tract Infection. Practice parameter: the diagnosis, treatment, and evaluation of the initial urinary tract infection in febrile infants and young children. Pediatrics 1999;203:843-52
  5. Smelli JM, Poulton A, Prescod NP. Retrospective study of children with renal scarring associated with reflux and urinary infection. Br Med J 1994;308:1193-6 https://doi.org/10.1136/bmj.308.6938.1193
  6. Hokinen O, Lehtonen OP, Ruuskanen O, Huovinen P, Mertsola J. Cohort study of bacterial species causing urinary tract infection and urinary tract abnormalities in children. Br Med J 1999;318:770-1 https://doi.org/10.1136/bmj.318.7186.770
  7. Hokinen O, Jahnukainen T, Mertsola J, Eskola J, Ruuskanen O. Bacteremic urinary tract infection in children. Pediatr Infect Dis J 2000;19:630-4 https://doi.org/10.1097/00006454-200007000-00009
  8. Friedman S, Reif S, Assia A, Levy I. Clinical and laboratory characteristics of non-E. coli urinary tract infections. Arch Dis Child 2006;91:845-6 https://doi.org/10.1136/adc.2005.080721
  9. Kanellopoulos TA, Vassilakos PJ, Kantzis M, Ellina A, Kolonitsiou F, Papanastasiou DA. Low bacterial count urinary tract infections in infants and young children. Eur J Pediatr 2005;164:355-61 https://doi.org/10.1007/s00431-005-1632-0
  10. Ditchfield MR, de Campo JF, Nolan TM, Cook DJ, Grimwood K, Powell HR, et al. Risk factors in the development of early renal cortical defects in children with urinary tract infection. AJR Am J Roentgenol 1994:162:1393-7 https://doi.org/10.2214/ajr.162.6.8192006
  11. Fernbach SK, Maizels M, Conway JJ. Ultrasound grading of hydronephrosis: introduction to the system used by the Society for Fetal Urology. Pediatr Radiol 1993;23:478-80 https://doi.org/10.1007/BF02012459
  12. Belman AB. Vesicoureteral reflux. Pediatr Clin North Am 1997;44:1171-90 https://doi.org/10.1016/S0031-3955(05)70552-6
  13. Remington JS, Klein JO. Infectious disease of the fetus and newborn infant. 5th ed. Philadelphia: WB Sauders Co, 2001: 1035-46
  14. Lee SY, Cho SH, Kim SM, Jeong DC, Chung SY, Lee KY, et al. Urinary tract infection in febrile infants with pyuria. Korean J Ped Inf Dis 2004;11:90-100 https://doi.org/10.14776/kjpid.2004.11.1.90
  15. Nelson. Textbook of Pediatrics. 17th ed. Philadelphia: WB Saunders Co, 2004:1785
  16. Eisenstein BI, Zaleznik DF. Enterobacteriaceae. In: Mandell JL, Bennett JE, Dolin R. Principle and practice of infectious diseases, 5th ed. Philadelphia: Churchill Livingstone 2000; 2294-2310.
  17. Johnson JR, Scheutz F, Ulleryd P, Kuskowski MA, O'Bryan TT, Sandbeg T. Host-pathogen relationship among Escherichia coli isolates recovered from men with febrile urinary tract infection. Clin Infect Dis 2005;40:813-22 https://doi.org/10.1086/428048
  18. Hoberman A, Chao H-P, Keller DM, Hicheys R, Davis HW, Ellis D. Prevalence of urinary tract infection in febrile infant. J Pediatr 1993;123:17-23 https://doi.org/10.1016/S0022-3476(05)81531-8
  19. Hellstrom A, Hanson E, Hansson S, Hjalmas K, Jodal U. Association between urinary symptoms at 7 years old and previous urinary tract infection. Arch Dis Child 1991;66: 232-4 https://doi.org/10.1136/adc.66.2.232