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KMID : 1234520140090010034
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Korean Journal of Urogenital Tract Infection Inflammation
2014 Volume.9 No. 1 p.34 ~ p.38
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Incidence and Risk Factors of Urinary Tract Infection after Endoscopic Therapy for Vesicoureteral Reflux in Children
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Ku Ja-Yoon
Park Bu-Kyung
Lee Sang-Don
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Abstract
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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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KEYWORD
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Urinary tract infections, Vesicoureteral-reflux, Endoscopic theraphy
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