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Journal of the Korean Society of Pediatric Nephrology 2012;16(2): 102-108. doi: https://doi.org/10.3339/jkspn.2012.16.2.102
발열성 소아 신우 신염에서 단일 세균 감염과 혼합 세균 감염의 임상적 비교
이인학, 남성우, 서현석, 임형은, 유기환, 홍영숙, 이주원
1고려대학교 의과대학 소아과학교실
2고려대학교 의과대학 소아과학교실
3고려대학교 의과대학 소아과학교실
4고려대학교 의과대학 소아과학교실
5고려대학교 의과대학 소아과학교실
6고려대학교 의과대학 소아과학교실
7고려대학교 의과대학 소아과학교실
The Clinical Comparison between Monomicrobial and Polymicrobial Urinary Infection in Febrile Pediatric Acute Pyelonephritis
In Hak Lee, Seong Woo Nam, Hyeon Seok Seo, Hyung Eun Yim, Kee Hwan Yoo, Young Sook Hong, Joo Won Lee
1Department of Pediatrics, College of Medicine, Korea University
2Department of Pediatrics, College of Medicine, Korea University
3Department of Pediatrics, College of Medicine, Korea University
4Department of Pediatrics, College of Medicine, Korea University
5Department of Pediatrics, College of Medicine, Korea University
6Department of Pediatrics, College of Medicine, Korea University
7Department of Pediatrics, College of Medicine, Korea University
Received: April 12, 2012;  Revised: May 9, 2012.  Accepted: May 21, 2012.
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ABSTRACT
Purpose: We investigated the clinical presentation of febrile pediatric patients with acute pyelonephritis (APN) with a mixed urine culture from an aseptic urine sample, and compared with that of those with a single culture.
Methods: We retrospectively reviewed the medical charts of 95 patients diagnosed as APN with fever between January 2008 and October 2010 at Korea University Medical Center. We classified the patients with APN into two groups with a positive single culture (S group) and a positive mixed culture (M group) from an aseptic urine sample of suprapubic bladder aspiration or urethral catheterization and compared the fever duration, laboratory markers such as serum white blood cell (WBC) counts and C-reactive protein (CRP) values in peripheral blood, and the presence of hydronephrosis, renal scar and vesicoureteral reflux (VUR) between the two groups (If presence of hydronephrosis, scar and VUR=1 and no=0).
Results : Total pediatric patients with febrile APN were 95 patients, a positive S group was 89 patients and a positive M group was 6 patients. Fever duration (S vs. M, $4.7{pm}3.1$ vs. $6{pm}5.7$ days), serum WBC (S vs. M, $18,630{pm}6,483$ vs. $20,153{pm}7,660/{mu}L$) and CRP (S vs. M, $100.6{pm}2.46$ vs. $81.1{pm}0.09;mg/L$) values, and the presence of hydronephrosis, renal scar and VUR were not different between the two groups.
Conclusion : Our data shows that there were no specific differences of clinical manifestation between a positive single urine culture and a positive mixed urine culture in pediatric APN. A mixed urine culture from an aseptic urine sample should be interpreted cautiously.
Key words: Bacteriuria | Polymicrobial Infection | Pyelonephritis
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