Childhood Kidney Diseases

Korean Society of Pediatric Nephrology (대한소아신장학회)
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Prevalence of Vesicoureteral Reflux According to the Timing of Voiding Cystourethrography in Infantile Urinary Tract Infection

영아 요로감염에서 배뇨방광요도조영술 시기에 따른 방광요관역류의 발생 빈도: 두 기관 비교 연구

  • Oh, Yoon-Su (Department of Pediatrics, Yonsei University College of Medicine) ;
  • Choi, Min-Jeong (Department of Pediatrics, Yonsei University College of Medicine) ;
  • Park, Se-Jin (Department of Pediatrics, Ajou University School of Medicine) ;
  • Lee, Jae-Seung (Department of Pediatrics, Yonsei University College of Medicine) ;
  • Shin, Jae-Il (Department of Pediatrics, Yonsei University College of Medicine) ;
  • Kim, Kee-Hyuck (Department of Pediatrics, National Health Insurance Corporation Ilsan Hospital)
  • 오윤수 (연세대학교 의과대학 소아과학교실) ;
  • 최민정 (연세대학교 의과대학 소아과학교실) ;
  • 박세진 (아주대학교 의과대학 소아과학교실) ;
  • 이재승 (연세대학교 의과대학 소아과학교실) ;
  • 신재일 (연세대학교 의과대학 소아과학교실) ;
  • 김기혁 (국민건강보험공단 일산병원 소아청소년과)
  • Received : 2011.03.24
  • Accepted : 2011.09.16
  • Published : 2011.10.31
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Abstract

Purpose : To evaluate the prevalence of vesicoureteral reflux (VUR) according to the timing of voiding cystourethrography (VCUG) in infantile urinary tract infection (UTI). Methods : The data of 134 infants (1-12 months) with renal cortical defect in $^{99m}Tc$-2, 3-dimercaptosuccinic acid ($^{99m}Tc$-DMSA) scan with a diagnosis of UTI in two hospitals from 2000 to 2010 were retrospectively analyzed. The VCUG was performed after 2 weeks from the diagnosis of UTI in Group I (n=68), and the VCUG was performed within 2 weeks from the diagnosis of UTI in Group II (n=66). Results : There were no significant differences between the two groups in the duration of fever, white blood cell count, C-reactive protein levels, and abnormalities in ultrasonography (P>0.05). There was no significant difference between the two groups in the prevelence of VUR, bilateral VUR, and severe VUR. VCUG-induced UTI was detected 16 (23.5%) of patients in whom the procedure was performed 2 weeks after the diagnosis, and none of VCUG-induced UTI occurred in those in whom the procedure was performed 2 weeks within the diagnosis. Conclusion : We conclude that the prevalence of VUR according to the timing of VCUG did not differ between the two groups in infantile UTI with renal cortical defect in DMSA scan. We also found that performing VCUG with antibiotics can decrease risk of VCUG-induced UTI.

목적 : 요로 감염은 소아에서 흔한 세균 질환 중의 하나로 요로감염이 있는 소아의 약 1/3에서 방광요관역류가 발견되며, 배뇨방광요도조영술의 침습성인 특징이 있어 최근 $^{99m}Tc$-DMSA가 양성인 경우에서만 검사를 시행하는 경우가 많다. 본 연구에서는 $^{99m}Tc$-DMSA 양성인 영아 요로감염의 경우 배뇨방광요도조영술 시행 시기에 따른 방광요관역류 빈도를 알아보고자 하였다. 방법:${\bigcirc}{\bigcirc}$병원과 ${\bigcirc}{\bigcirc}$병원에서 요로감염으로 입원한 1개월 이상-1세 미만의 영아 총 134명을 대상으로 후향적 분석을 시행하였다. 배뇨방광요도조영술을 I군은 A병원에 요로감염으로 입원한 68명을 대상으로 진단 후 2주 이후 시행하였으며, II군은 B병원에 요로감염으로 입원한 66명을 대상으로 진단후 2주 미만에 시행하였다. 결과 : $^{99m}Tc$-DMSA 양성인 영아 요로감염에 있어 나이, 성별, 발열기간에 두 그룹 간의 통계학적인 차이를 보이지 않았다. 초음파 이상 소견은 I군에서 68명 중 28명으로 41.2%, II군에서는 66명 중 39명으로 59.1%의 빈도를 보이나 통계학적으로 유의한 차이를 보이지 않았다. 백혈구수와 C-반응 단백와 같은 진단검사, 그리고 양측성 방광요관역류와 중증 방광요관역류의 결과에 있어서도 두 그룹간의 통계학적인 차이를 보이지 않았다. I군 에서 초음파 이상 소견은 수신증, 증가된 에코음영, 수신증과 증가된 에코음영 동반 순으로 각각 53.6%, 25.0%, 7.1%의 빈도를 나타내었으며, II군에서 초음파 이상 소견은 증가된 에코음영, 수신증, 수신증과 요관 확장증 동반의 순으로 각각 38.5%, 25.2%, 12.8%의 빈도를 보였다. 요로감염으로 입원한 기간 동안 치료 용량의 항생제를 사용하면서 배뇨방광요도조영술을 시행한 II군에서는 검사 후 요로감염이 발생하지 않았으나 요로감염으로 진단되어 2주 이후 배뇨방광요도조영술을 시행한 I군 중 23.5%에서 검사 시행 후에 요로감염이 새로 발생하였다. 결론 : $^{99m}Tc$-DMSA 양성인 영아 요로감염의 경우 2주 미만 내 배뇨방광요도조영술을 시행하거나 2주 이후 배뇨방광요도조영술을 시행한 경우 검사 시기에 따른 역류발생빈도에 유의한 차이를 보이지 않았으나 치료 용량의 항생제를 투여 중인 입원기간 내 배뇨방광요도조영술을 시행하는 것이 검사 시행 후 요로감염의 발생률이 더 낮출 수 있다.

Keywords

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