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- Original Article Incidence and Risk Factors of Urinary Tract Infection after Endoscopic Therapy for Vesicoureteral Reflux in Children
- Ja Yoon Ku, Bu Kyung Park, Sang Don Lee
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방광요관역류 소아에서 내시경 수술 후 요로감염의 빈도 및 위험인자 - 구자윤, 박부경, 이상돈
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Urogenital Tract Infection 2014;9(1):34-38.
Published online: April 30, 2014
1Department of Urology, Pusan National University Children Hospital,
2Department of Urology, Pusan National University School of Medicine, Yangsan, Korea
1부산대학교어린이병원 소아비뇨기과,
2부산대학교 의학전문대학원 비뇨기과학교실
2Department of Urology, Pusan National University School of Medicine, Yangsan, Korea
1부산대학교어린이병원 소아비뇨기과,
2부산대학교 의학전문대학원 비뇨기과학교실
Received: 31 March 2014 • Revised: 14 April 2014 • Accepted: 15 April 2014
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Abstract
Purpose
The purpose of this study is to evaluate the incidence and risk factors of febrile urinary tract infection (UTI) after endoscopic therapy for vesicoureteral reflux (VUR).
Materials and Methods: Analysis of the clinical data of 88 children (128 refluxing renal units; male 60%, female 40%) in a single institution during March 2011-June 2013 including age, gender, sorts and volume of agent for injection, preoperative VUR grade, recurrent UTI, bladder dysfunction, nephropathy, postoperative VUR, urinalysis, and urine culture results was performed retrospectively. All patients were followed for three to 62 months (average 25 months).
Results: After the first injection, the complete resolutions rate of VUR (by ureter) was 72.7%, consisting of grade I 4 (90%), grade II 11 (84.6%), grade III 29 (76.3%), grade IV 33 (66%), and grade V 93 (72.7%) ureters. Preoperative UTI and febrile UTI were present in 81 (92.0%) and 49 patients (55.7%), respectively. Preoperative recurrent UTI and febrile UTI were observed in 53 (60.2%) and 30 patients (34.1%), respectively. Postoperative UTI and febrile UTI occurred in eight (9.1%) and in five patients (5.7%), respectively. In multivariate analysis, only preoperative recurrent UTI (odds ratio [OR], 0.17; p=0.04) and bladder trabeculation (OR, 0.104; p=0.038) were independent variables after endoscopic therapy.
Conclusions: Our data support that the successful endoscopic correction of VUR is associated with a low incidence of febrile UTI. The highest risk factor for post injection UTI is preoperative recurrent UTI and bladder dysfunction. Therefore, patients with preoperative recurrent UTI and bladder dysfunction require careful observation after endoscopic therapy for VUR.
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