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Gnech M, 't Hoen L, Zachou A, Bogaert G, Castagnetti M, O'Kelly F, Quaedackers J, Rawashdeh YF, Silay MS, Kennedy U, Skott M, van Uitert A, Yuan Y, Radmayr C, Burgu B. Update and Summary of the European Association of Urology/European Society of Paediatric Urology Paediatric Guidelines on Vesicoureteral Reflux in Children. Eur Urol 2024; 85:433-442. [PMID: 38182493 DOI: 10.1016/j.eururo.2023.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND AND OBJECTIVE The prescriptive literature on vesicoureteral reflux (VUR) is still limited and thus the level of evidence is generally low. The aim of these guidelines is to provide a practical approach to the treatment of VUR that is based on risk analysis and selective indications for both diagnostic tests and interventions. We provide a 2023 update on the chapter on VUR in children from the European Association of Urology (EAU) and European Society for Paediatric Urology (ESPU) guidelines. METHODS A structured literature review was performed for all relevant publications published from the last update up to March 2022. KEY FINDINGS AND LIMITATIONS The most important updates are as follows. Bladder and bowel dysfunction (BBD) is common in toilet-trained children presenting with urinary tract infection (UTI) with or without primary VUR and increases the risk of febrile UTI and focal uptake defects on a radionuclide scan. Continuous antibiotic prophylaxis (CAP) may not be required in every VUR patient. Although the literature does not provide any reliable information on CAP duration in VUR patients, a practical approach would be to consider CAP until there is no further BBD. Recommendations for children with febrile UTI and high-grade VUR include initial medical treatment, with surgical care reserved for CAP noncompliance, breakthrough febrile UTIs despite CAP, and symptomatic VUR that persists during long-term follow-up. Comparison of laparoscopic extravesical versus transvesicoscopic ureteral reimplantation demonstrated that both are good option in terms of resolution and complication rates. Extravesical surgery is the most common approach used for robotic reimplantation, with a wide range of variations and success rates. CONCLUSIONS AND CLINICAL IMPLICATIONS This summary of the updated 2023 EAU/ESPU guidelines provides practical considerations for the management and diagnostic evaluation of VUR in children. ADVANCING PRACTICE For children with VUR, it is important to treat BBD if present. A practical approach regarding the duration of CAP is to consider administration until BBD resolution. PATIENT SUMMARY We provide a summary and update of guidelines on the diagnosis and management of urinary reflux (where urine flows back up through the urinary tract) in children. Treatment of bladder and bowel dysfunction is critical, as this is common in toilet-trained children presenting with urinary tract infection.
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Affiliation(s)
- Michele Gnech
- Department of Paediatric Urology, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.
| | - Lisette 't Hoen
- Department of Pediatric Urology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Alexandra Zachou
- Department of HIV and Sexual Health, Chelsea & Westminster Hospital, London, UK
| | - Guy Bogaert
- Department of Urology, University of Leuven, Leuven, Belgium
| | - Marco Castagnetti
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padua, Italy
| | - Fardod O'Kelly
- Division of Paediatric Urology, Beacon Hospital Dublin & University College Dublin, Ireland
| | - Josine Quaedackers
- Department of Urology, University Medical Center Groningen, Groningen, The Netherlands
| | - Yazan F Rawashdeh
- Department of Urology, Section of Pediatric Urology, Aarhus University Hospital, Aarhus, Denmark
| | - Mesrur Selcuk Silay
- Division of Pediatric Urology, Department of Urology, Biruni University, Istanbul, Turkey
| | - Uchenna Kennedy
- Department of Pediatric Urology, University Children's Hospital Zurich, Zurich, Switzerland
| | - Martin Skott
- Department of Urology, Section of Pediatric Urology, Aarhus University Hospital, Aarhus, Denmark
| | - Allon van Uitert
- Department of Urology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Yuhong Yuan
- Department of Medicine, London Health Science Centre, London, Ontario, Canada, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Christian Radmayr
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria
| | - Berk Burgu
- Department of Pediatric Urology, Ankara University School of Medicine, Ankara, Turkey
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't Hoen LA, Bogaert G, Radmayr C, Dogan HS, Nijman RJM, Quaedackers J, Rawashdeh YF, Silay MS, Tekgul S, Bhatt NR, Stein R. Update of the EAU/ESPU guidelines on urinary tract infections in children. J Pediatr Urol 2021; 17:200-207. [PMID: 33589366 DOI: 10.1016/j.jpurol.2021.01.037] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 12/27/2022]
Abstract
INTRODUCTION/BACKGROUND Urinary tract infections (UTIs) are common in children and require appropriate diagnostic evaluation, management and follow-up. OBJECTIVE To provide a summary of the updated European Association of Urology (EAU) guidelines on Pediatric Urology, which were first published in 2015 in European Urology. STUDY DESIGN A structured literature review was performed of new publications between 2015 and 2020 for UTIs in children. The guideline was updated accordingly with relevant new literature. RESULTS The occurrence of a UTI can be the first indication of anatomical abnormalities in the urinary tract, especially in patients with a febrile UTI. The basic diagnostic evaluation should include sufficient investigations to exclude urinary tract abnormalities, but should also be as minimally invasive as possible. In recent years, more risk factors have been identified to predict the presence of these anatomical anomalies, such as a non-E. Coli infection, high grade fever and ultrasound abnormalities. When these risk factors are factored into the diagnostic work-up, some invasive investigations can be omitted in a larger group of children. In addition to the treatment of active UTIs, it is also essential to prevent recurrent UTIs and consequent renal scarring. With the increase of antimicrobial resistance good antibiotic stewardship is needed. In addition, alternative preventative measures such as dietary supplements, bladder and bowel management and antibiotic prophylaxis could decrease the incidence of recurrent UTI. CONCLUSION This paper is a summary of the updated 2021 EAU guidelines on Pediatric Urology. It provides practical considerations and flowcharts for the management and diagnostic evaluation of UTIs in children.
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Affiliation(s)
- Lisette A 't Hoen
- Department of Pediatric Urology, Erasmus Medical Center, Rotterdam, the Netherlands.
| | - Guy Bogaert
- Department of Urology, University of Leuven, Leuven, Belgium
| | - Christian Radmayr
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria
| | - Hasan S Dogan
- Division of Pediatric Urology, Hacettepe University, Ankara, Turkey
| | - Rien J M Nijman
- Department of Urology and Pediatric Urology, University Medical Center Groningen, Rijks University Groningen, Groningen, the Netherlands
| | - Josine Quaedackers
- Department of Urology and Pediatric Urology, University Medical Center Groningen, Rijks University Groningen, Groningen, the Netherlands
| | | | - Mesrur S Silay
- Division of Pediatric Urology, Department of Urology, Istanbul Biruni University, Istanbul, Turkey
| | - Serdar Tekgul
- Division of Pediatric Urology, Hacettepe University, Ankara, Turkey
| | - Nikita R Bhatt
- Department of Urology, East of England Deanery, Urology, Cambridge, United Kingdom
| | - Raimund Stein
- Center for Pediatric, Adolescent and Reconstructive Urology, Medical Faculty Mannheim, University of Medical Center Mannheim, Heidelberg University, Mannheim, Germany
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Simões E Silva AC, Oliveira EA, Mak RH. Urinary tract infection in pediatrics: an overview. J Pediatr (Rio J) 2020; 96 Suppl 1:65-79. [PMID: 31783012 PMCID: PMC9432043 DOI: 10.1016/j.jped.2019.10.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/12/2019] [Accepted: 10/16/2019] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE This review aimed to provide a critical overview on the pathogenesis, clinical findings, diagnosis, imaging investigation, treatment, chemoprophylaxis, and complications of urinary tract infection in pediatric patients. SOURCE OF DATA Data were obtained independently by two authors, who carried out a comprehensive and non-systematic search in public databases. SUMMARY OF FINDINGS Urinary tract infection is the most common bacterial infection in children. Urinary tract infection in pediatric patients can be the early clinical manifestation of congenital anomalies of the kidney and urinary tract (CAKUT) or be related to bladder dysfunctions. E. coli is responsible for 80-90% of community-acquired acute pyelonephritis episodes, especially in children. Bacterial virulence factors and the innate host immune systems may contribute to the occurrence and severity of urinary tract infection. The clinical presentation of urinary tract infections in children is highly heterogeneous, with symptoms that can be quite obscure. Urine culture is still the gold standard for diagnosing urinary tract infection and methods of urine collection in individual centers should be determined based on the accuracy of voided specimens. The debate on the ideal imaging protocol is still ongoing and there is tendency of less use of prophylaxis. Alternative measures and management of risk factors for recurrent urinary tract infection should be emphasized. However, in selected patients, prophylaxis can protect from recurrent urinary tract infection and long-term consequences. According to population-based studies, hypertension and chronic kidney disease are rarely associated with urinary tract infection. CONCLUSION Many aspects regarding urinary tract infection in children are still matters of debate, especially imaging investigation and indication of antibiotic prophylaxis. Further longitudinal studies are needed to establish tailored approach of urinary tract infection in childhood.
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Affiliation(s)
- Ana Cristina Simões E Silva
- Universidade Federal de Minas Gerais (UFMG), Faculdade de Medicina, Laboratório Interdisciplinar de Investigação Médica, Departamento de Pediatria, Unidade de Nefrologia Pediátrica, Belo Horizonte, MG, Brazil.
| | - Eduardo A Oliveira
- Universidade Federal de Minas Gerais (UFMG), Faculdade de Medicina, Laboratório Interdisciplinar de Investigação Médica, Departamento de Pediatria, Unidade de Nefrologia Pediátrica, Belo Horizonte, MG, Brazil
| | - Robert H Mak
- University of California, Rady Children's Hospital San Diego, Division of Pediatric Nephrology, San Diego, United States
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Kawai S, Nakai H, Kanai T, Tanabe K, Hyuga T, Nakamura S, Betsui H, Aoyagi J, Saito T, Ito T, Odaka J, Furukawa R, Aihara T. Prevention of recurrent febrile urinary tract infection in infants: Ultrasonography-oriented approach is more practical than a top-down approach. Pediatr Int 2019; 61:1007-1014. [PMID: 31298773 DOI: 10.1111/ped.13970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 03/29/2019] [Accepted: 05/16/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND We previously reported that the top-down approach (TDA) for infants with febrile urinary tract infections (fUTI) could prevent recurrent fUTI (r-fUTI) but produced a high number of false-positives on acute-phase 99m Tc dimercaptosuccinic acid (DMSA) renal scintigraphy. Therefore we compared the ultrasonography-oriented approach (USOA) with TDA from the viewpoint of prevention of r-fUTI. METHODS The TDA was applied between July 2010 and February 2014 and the USOA was applied between March 2014 and April 2017 in infants with first fUTI. In the USOA group, voiding cystourethrography (VCUG) was performed in the case of abnormality on acute-phase renal bladder ultrasonography (RBUS) or on chronic- phase DMSA, which were performed in all cases. The frequency of r-fUTI was compared between the TDA group and USOA group retrospectively. RESULTS Seventy-four infants (52 male) and 79 infants (60 male) received TDA or USOA, respectively. No significant differences were found between the TDA and USOA groups in male : female ratio, age in months at initial onset of fUTI, observation period, or number of cases of r-fUTI (TDA group, n = 4; USOA group, n = 5). Seventy-four DMSA scintigraphy and 25 VCUG were carried out in the USOA group, and 111 DMSA scintigraphy and 34 VCUG in the TDA group. CONCLUSIONS Both USOA and TDA were valid for prevention of r-fUTI, but USOA was superior to TDA with regard to the reduced number of patients undergoing VCUG and DMSA.
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Affiliation(s)
- Shina Kawai
- Department of Pediatric Urology, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Hideo Nakai
- Department of Pediatric Urology, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Takahiro Kanai
- Department of Pediatrics, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Kazuya Tanabe
- Department of Pediatric Urology, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Taiju Hyuga
- Department of Pediatric Urology, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Shigeru Nakamura
- Department of Pediatric Urology, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Hiroyuki Betsui
- Department of Pediatrics, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Jun Aoyagi
- Department of Pediatrics, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Takashi Saito
- Department of Pediatrics, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Takane Ito
- Department of Pediatrics, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Jun Odaka
- Department of Pediatrics, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Rieko Furukawa
- Department of Pediatric Radiology, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
| | - Toshinori Aihara
- Department of Pediatric Radiology, Jichi Children's Medical Center Tochigi, Shimotsuke, Japan
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Balestracci A, Montecuco M, Serviddio C, Figueredo LD, Montiel V, Torres Perez C, Puyol I, Capone MA. Role of Late DMSA Renal Scan in Detecting High-Grade Vesicoureteral Reflux. Indian J Pediatr 2019; 86:784-789. [PMID: 30859438 DOI: 10.1007/s12098-019-02917-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 02/18/2019] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To determine the performance of late dimercaptosuccinic acid (DMSA) renal scans in identifying high-grade (III-V) vesicoureteral reflux (VUR) in children aged over 3 y with a febrile urinary tract infection (fUTI) history that has not been timely investigated. METHODS In this retrospective study of diagnostic accuracy, the clinical records of children aged between 3 and 18 y with fUTI history evaluated consecutively at Nephrology Unit of Hospital General de Niños Pedro de Elizalde, Argentina between 2006 and 2016 were reviewed. Patients with previously diagnosed renal or urinary tract abnormalities or who underwent previous postnatal genitourinary imaging were excluded. Only those assessed by renal and bladder ultrasound (RBUS), voiding cystourethrogram (VCUG) and late 6-mo DMSA scan were analyzed. The ability of the scintigraphy in identifying high-grade VUR was determined by comparing its findings with those of VCUG. RESULTS In 122 children (median age 5.37 y, 88.5% girls) RBUS was abnormal in 53 (43.4%) and 58 (47.5%) had VUR (30 of high-grade). Abnormal DMSA scan findings (70 patients, 57.4%) were associated with all grade (p = 0.00001) and with high-grade VUR (p = 0.00001). Sensitivity, specificity, negative (NPV) and positive (PPV) predictive values of late DMSA scans for all grades VUR were 93.1%, 75%, 92.3% and 77.1%, respectively. Only 4 patients with low-grade VUR had normal scans. For high-grade VUR, sensitivity and NPV reached 100%. CONCLUSIONS In older children, the normal late DMSA scan predicted the absence of high-grade VUR, obviating the need for a VCUG. This approach could be a possible strategy for children not studied at acute infection time.
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Affiliation(s)
- Alejandro Balestracci
- Nephrology Unit, Hospital General de Niños Pedro de Elizalde, Montes de Oca 40, CP 1270, Ciudad Autónoma de Buenos Aires, Argentina.
| | - Micaela Montecuco
- Department of Pediatrics, Hospital General de Niños Pedro de Elizalde, Montes de Oca 40, Ciudad Autónoma de Buenos Aires, Argentina
| | - Carla Serviddio
- Department of Pediatrics, Hospital General de Niños Pedro de Elizalde, Montes de Oca 40, Ciudad Autónoma de Buenos Aires, Argentina
| | - Lourdes Domínguez Figueredo
- Department of Pediatrics, Hospital General de Niños Pedro de Elizalde, Montes de Oca 40, Ciudad Autónoma de Buenos Aires, Argentina
| | - Virginia Montiel
- Department of Pediatrics, Hospital General de Niños Pedro de Elizalde, Montes de Oca 40, Ciudad Autónoma de Buenos Aires, Argentina
| | - Cecilia Torres Perez
- Department of Pediatrics, Hospital General de Niños Pedro de Elizalde, Montes de Oca 40, Ciudad Autónoma de Buenos Aires, Argentina
| | - Iris Puyol
- Nephrology Unit, Hospital General de Niños Pedro de Elizalde, Montes de Oca 40, CP 1270, Ciudad Autónoma de Buenos Aires, Argentina
| | - Marina A Capone
- Nephrology Unit, Hospital General de Niños Pedro de Elizalde, Montes de Oca 40, CP 1270, Ciudad Autónoma de Buenos Aires, Argentina
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Meena J, Sinha A. Evaluation for Vesicoureteric Reflux Following Febrile Urinary Tract Infections. Indian J Pediatr 2019; 86:773-774. [PMID: 31280408 DOI: 10.1007/s12098-019-03023-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 06/25/2019] [Indexed: 12/01/2022]
Affiliation(s)
- Jitendra Meena
- Division of Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Aditi Sinha
- Division of Nephrology, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India.
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Vasconcelos MA, E Silva ACS, Gomes IR, Carvalho RA, Pinheiro SV, Colosimo EA, Yorgin P, Mak RH, Oliveira EA. A clinical predictive model of chronic kidney disease in children with posterior urethral valves. Pediatr Nephrol 2019; 34:283-294. [PMID: 30196383 DOI: 10.1007/s00467-018-4078-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 08/19/2018] [Accepted: 08/30/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND Posterior urethral valves (PUVs) are associated with severe consequences to the urinary tract and are a common cause of chronic kidney disease (CKD). The aim of this study was to develop clinical predictive model of CKD in a cohort of patients with PUVs. METHODS In this retrospective cohort study, 173 patients with PUVs were systematically followed up at a single tertiary unit. The primary endpoint was CKD ≥ stage 3. Survival analyses were performed by Cox regression proportional hazard models with time-fixed and time-dependent covariables. RESULTS Mean follow-up time was 83 months (SD, 70 months). Sixty-five children (37.6%) developed CKD stage ≥ 3. After adjustment by the time-dependent Cox model, baseline creatinine, nadir creatinine, hypertension, and proteinuria remained as predictors of the endpoint. After adjustment by time-fixed model, three variables were predictors of CKD ≥ stage 3: baseline creatinine, nadir creatinine, and proteinuria. The prognostic risk score was divided into three categories: low-risk (69 children, 39.9%), medium-risk (45, 26%), and high-risk (59, 34.1%). The probability of CKD ≥ stage 3 at 10 years age was estimated as 6%, 40%, and 70% for patients assigned to the low-risk, medium-risk, and high-risk groups, respectively (P < 0.001). The main limitation was the preclusion of some relevant variables, especially bladder dysfunction, that might contribute to a more accurate prediction of renal outcome. CONCLUSION The model accurately predicts the risk of CKD in PUVs patients. This model could be clinically useful in applying timely intervention and in preventing the impairment of renal function.
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Affiliation(s)
- Mariana A Vasconcelos
- Pediatric Nephrourology Division, Department of Pediatrics, National Institute of Science and Technology (INCT) of Molecular Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), R. Engenheiro Amaro Lanari 389/501, Belo Horizonte, MG, 30310-580, Brazil
| | - Ana Cristina Simões E Silva
- Pediatric Nephrourology Division, Department of Pediatrics, National Institute of Science and Technology (INCT) of Molecular Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), R. Engenheiro Amaro Lanari 389/501, Belo Horizonte, MG, 30310-580, Brazil
| | - Izabella R Gomes
- Pediatric Nephrourology Division, Department of Pediatrics, National Institute of Science and Technology (INCT) of Molecular Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), R. Engenheiro Amaro Lanari 389/501, Belo Horizonte, MG, 30310-580, Brazil
| | - Rafaela A Carvalho
- Pediatric Nephrourology Division, Department of Pediatrics, National Institute of Science and Technology (INCT) of Molecular Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), R. Engenheiro Amaro Lanari 389/501, Belo Horizonte, MG, 30310-580, Brazil
| | - Sergio V Pinheiro
- Pediatric Nephrourology Division, Department of Pediatrics, National Institute of Science and Technology (INCT) of Molecular Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), R. Engenheiro Amaro Lanari 389/501, Belo Horizonte, MG, 30310-580, Brazil
| | | | - Peter Yorgin
- Division of Pediatric Nephrology, Rady Children's Hospital San Diego, University of California, San Diego, La Jolla, CA, USA
| | - Robert H Mak
- Division of Pediatric Nephrology, Rady Children's Hospital San Diego, University of California, San Diego, La Jolla, CA, USA
| | - Eduardo A Oliveira
- Pediatric Nephrourology Division, Department of Pediatrics, National Institute of Science and Technology (INCT) of Molecular Medicine, School of Medicine, Federal University of Minas Gerais (UFMG), R. Engenheiro Amaro Lanari 389/501, Belo Horizonte, MG, 30310-580, Brazil.
- Visiting Scholar, Division of Pediatric Nephrology, Rady Children's Hospital San Diego, University of California, San Diego, La Jolla, CA, USA.
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Mola G, Wenger TR, Salomonsson P, Knudsen IJD, Madsen JL, Møller S, Olsen BH, Vinicoff PG, Thorup J, Cortes D. Selective imaging modalities after first pyelonephritis failed to identify significant urological anomalies, despite normal antenatal ultrasounds. Acta Paediatr 2017; 106:1176-1183. [PMID: 28437563 DOI: 10.1111/apa.13894] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Revised: 04/02/2017] [Accepted: 04/21/2017] [Indexed: 01/04/2023]
Abstract
AIM We investigated the consequences of applying different imaging guidelines for urological anomalies after first pyelonephritis in children with normal routine antenatal ultrasounds. METHODS The cohort comprised 472 children treated for their first culture-positive pyelonephritis and investigated with ultrasound and renal scintigraphy. We excluded patients with known urological anomalies and patients born before routine antenatal ultrasound. We followed the cohort for a median of 5.7 years (3.1-10.1 years) by reviewing their medical reports. RESULTS Urological anomalies were diagnosed in 95 patients. Dilated vesicoureteral reflux (VUR) was the predominant finding (n = 29), including nine who initially had surgery. Using imaging guidelines from the American Academy of Pediatrics would have missed 11 urological patients, including two with initial surgery, and avoided 339 scintigraphies. Using the European Association of Paediatric Urology guidance would have missed three urological patients, one with initial surgery, and avoided 46 scintigraphies. Investigating patients under two years with ultrasound and scintigraphy, and just ultrasound in children over two years, would have identified all patients initially treated with surgery and avoided 65 scintigraphies. CONCLUSION Dilated VUR was the dominant anomaly in a cohort with first time pyelonephritis and normal antenatal ultrasound. The optimal imaging strategy after pyelonephritis must be identified.
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Affiliation(s)
- Gylli Mola
- Department of Paediatrics; Copenhagen University Hospital Hvidovre; Copenhagen Denmark
| | | | - Petra Salomonsson
- Department of Paediatrics; Copenhagen University Hospital Hvidovre; Copenhagen Denmark
| | - Inge Jenny Dahl Knudsen
- Department of Clinical Microbiology; Copenhagen University Hospital Hvidovre; Copenhagen Denmark
| | - Jan Lysgaard Madsen
- Department of Clinical Physiology and Nuclear Medicine; Centre for Functional and Diagnostic Imaging and Research; Copenhagen University Hospital Hvidovre; Copenhagen Denmark
| | - Søren Møller
- Department of Clinical Physiology and Nuclear Medicine; Centre for Functional and Diagnostic Imaging and Research; Copenhagen University Hospital Hvidovre; Copenhagen Denmark
- Faculty of Medical and Health Sciences; University of Copenhagen; Copenhagen Denmark
| | - Beth Härstedt Olsen
- Department of Radiology and Ultrasound; Copenhagen University Hospital Hvidovre; Copenhagen Denmark
| | - Pablo Gustavo Vinicoff
- Department of Radiology and Ultrasound; Copenhagen University Hospital Hvidovre; Copenhagen Denmark
| | - Jorgen Thorup
- Faculty of Medical and Health Sciences; University of Copenhagen; Copenhagen Denmark
- Department of Paediatric Surgery; Copenhagen University Hospital Rigshospitalet; Copenhagen Denmark
| | - Dina Cortes
- Department of Paediatrics; Copenhagen University Hospital Hvidovre; Copenhagen Denmark
- Faculty of Medical and Health Sciences; University of Copenhagen; Copenhagen Denmark
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Straub J, Apfelbeck M, Karl A, Khoder W, Lellig K, Tritschler S, Stief C, Riccabona M. [Vesico-ureteral reflux: Diagnosis and treatment recommendations]. Urologe A 2016; 55:27-34. [PMID: 26676728 DOI: 10.1007/s00120-015-0003-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Vesico-ureteral reflux (VUR) is one of the most common urologic diseases in childhood. About every third child that presents with a urinary tract infection (UTI) has urinary reflux to the ureter or kidney. Demonstration of a backflow of urine into the ureters or kidneys proves vesicoureteral reflux. In unclear cases, a positioned instillation of contrast agent (PIC) cystogram might be performed and is able to prove vesico-ureteral reflux. OBJECTIVES Since low-grade VUR has a high probability of maturation and self-limitation, infants with VUR should be given prophylactic antibiotics during their first year of life, reevaluating the status of VUR after 12 months. The aim of any treatment is to prevent renal damage. THERAPY The individual risk of renal scarring is decisive for the choice of adequate therapy. This risk is mainly dependent on reflux grade, age, and gender of the child as well as parental therapy adherence. In principle, therapeutic options include conservative as well as endoscopic or open surgical antireflux therapies. CONCLUSION Decisions on treatment should be made individually with parents taking into account all the findings available.
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Affiliation(s)
- J Straub
- Urologische Klinik und Poliklinik der Ludwig-Maximilians-Universität München, LMU, Klinikum Großhadern, Marchioninistr. 15, 81377, München, Deutschland.
| | - M Apfelbeck
- Urologische Klinik und Poliklinik der Ludwig-Maximilians-Universität München, LMU, Klinikum Großhadern, Marchioninistr. 15, 81377, München, Deutschland
| | - A Karl
- Urologische Klinik und Poliklinik der Ludwig-Maximilians-Universität München, LMU, Klinikum Großhadern, Marchioninistr. 15, 81377, München, Deutschland
| | - W Khoder
- Urologische Klinik und Poliklinik der Ludwig-Maximilians-Universität München, LMU, Klinikum Großhadern, Marchioninistr. 15, 81377, München, Deutschland
| | - K Lellig
- Urologische Klinik und Poliklinik der Ludwig-Maximilians-Universität München, LMU, Klinikum Großhadern, Marchioninistr. 15, 81377, München, Deutschland
| | - S Tritschler
- Urologische Klinik und Poliklinik der Ludwig-Maximilians-Universität München, LMU, Klinikum Großhadern, Marchioninistr. 15, 81377, München, Deutschland
| | - C Stief
- Urologische Klinik und Poliklinik der Ludwig-Maximilians-Universität München, LMU, Klinikum Großhadern, Marchioninistr. 15, 81377, München, Deutschland
| | - M Riccabona
- Urologische Klinik und Poliklinik der Ludwig-Maximilians-Universität München, LMU, Klinikum Großhadern, Marchioninistr. 15, 81377, München, Deutschland
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Shaikh N, Spingarn RB, Hum SW. Dimercaptosuccinic acid scan or ultrasound in screening for vesicoureteral reflux among children with urinary tract infections. Cochrane Database Syst Rev 2016; 7:CD010657. [PMID: 27378557 PMCID: PMC6457894 DOI: 10.1002/14651858.cd010657.pub2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND There is considerable interest in detecting vesicoureteral reflux (VUR) because its presence, especially when severe, has been linked to an increased risk of urinary tract infections and renal scarring. Voiding cystourethrography (VCUG), also known as micturating cystourethrography, is the gold standard for the diagnosis of VUR, and the grading of its severity. Because VCUG requires bladder catheterisation and exposes children to radiation, there has been a growing interest in other screening strategies that could identify at-risk children without the risks and discomfort associated with VCUG. OBJECTIVES The objective of this review is to evaluate the accuracy of two alternative imaging tests - the dimercaptosuccinic acid renal scan (DMSA) and renal-bladder ultrasound (RBUS) - in diagnosing VUR and high-grade VUR (Grade III-V VUR). SEARCH METHODS We searched MEDLINE, EMBASE, BIOSIS, and the Cochrane Register of Diagnostic Test Accuracy Studies from 1985 to 31 March 2016. The reference lists of relevant review articles were searched to identify additional studies not found through the electronic search. SELECTION CRITERIA We considered published cross-sectional or cohort studies that compared the results of the index tests (DMSA scan or RBUS) with the results of radiographic VCUG in children less than 19 years of age with a culture-confirmed urinary tract infection. DATA COLLECTION AND ANALYSIS Two authors independently applied the selection criteria to all citations and independently abstracted data. We used the bivariate model to calculate summary sensitivity and specificity values. MAIN RESULTS A total of 42 studies met our inclusion criteria. Twenty studies reported data on the test performance of RBUS in detecting VUR; the summary sensitivity and specificity estimates were 0.44 (95% CI 0.34 to 0.54) and 0.78 (95% CI 0.68 to 0.86), respectively. A total of 11 studies reported data on the test performance of RBUS in detecting high-grade VUR; the summary sensitivity and specificity estimates were 0.59 (95% CI 0.45 to 0.72) and 0.79 (95% CI 0.65 to 0.87), respectively. A total of 19 studies reported data on the test performance of DMSA in detecting VUR; the summary sensitivity and specificity estimates were 0.75 (95% CI 0.67 to 0.81) and 0.48 (95% CI 0.38 to 0.57), respectively. A total of 10 studies reported data on the accuracy of DMSA in detecting high-grade VUR. The summary sensitivity and specificity estimates were 0.93 (95% CI 0.77 to 0.98) and 0.44 (95% CI 0.33 to 0.56), respectively. AUTHORS' CONCLUSIONS Neither the renal ultrasound nor the DMSA scan is accurate enough to detect VUR (of all grades). Although a child with a negative DMSA test has an < 1% probability of having high-grade VUR, performing a screening DMSA will result in a large number of children falsely labelled as being at risk for high-grade VUR. Accordingly, the usefulness of the DMSA as a screening test for high-grade VUR should be questioned.
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Affiliation(s)
- Nader Shaikh
- Children's Hospital of PittsburghGeneral Academic Pediatrics3414 Fifth Ave, Suite 301PittsburghPAUSA15213
| | - Russell B Spingarn
- University of Pittsburgh School of Medicine3550 Terrace StreetPittsburghPAUSA15261
| | - Stephanie W Hum
- Children's Hospital of PittsburghGeneral Academic Pediatrics3414 Fifth Ave, Suite 301PittsburghPAUSA15213
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Wongbencharat K, Tongpenyai Y, Na-Rungsri K. Renal ultrasound and DMSA screening for high-grade vesicoureteral reflux. Pediatr Int 2016; 58:214-8. [PMID: 26275163 DOI: 10.1111/ped.12803] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 07/02/2015] [Accepted: 08/10/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND Selection of the appropriate radiologic investigation in a child after first febrile urinary tract infection (UTI) remains a contentious issue. This report investigated the effectiveness of renal bladder ultrasound (RBUS) and late 6 month dimercaptosuccinic acid (DMSA) renal scan in the detection of high-grade vesicoureteral reflux (VUR) after first febrile UTI in infants aged <1 year. METHODS A total of 387 infants aged <1 year with first febrile UTI who completed diagnostic follow up consisting of RBUS, voiding cystourethrogram (VCUG) and late 6 month DMSA scan were enrolled in the study. The effectiveness of RBUS and DMSA scan in the detection of high-grade VUR, including cost and benefit were assessed. RESULTS Abnormal RBUS was identified in 95 infants (24.5%). VUR was identified on VCUG in 79 (20.4%), of whom eight (2.1%) had high-grade VUR (grade IV-V). Abnormal renal parenchyma was identified on late 6 month DMSA scan in 22 infants (5.7%). The sensitivity of abnormal RBUS and of late 6 month DMSA scan in the prediction of high-grade VUR was 50% and 87.5%, and the proportion of infants who avoided unnecessary VCUG was 75.5% and 94.3%, respectively. CONCLUSIONS Fifty percent of high-grade VUR was not identified on RBUS screening after first febrile UTI. Although late 6 month DMSA scan had higher sensitivity in the detection of high-grade VUR, with the added benefit of detection of renal scars, the practical application of this method was limited due to its high cost, radiation exposure and the associated delay in decision making.
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Simões e Silva AC, Oliveira EA. Update on the approach of urinary tract infection in childhood. J Pediatr (Rio J) 2015; 91:S2-10. [PMID: 26361319 DOI: 10.1016/j.jped.2015.05.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 05/06/2015] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVE Urinary tract infection (UTI) is the most common bacterial infection in childhood. UTI may be the sentinel event for underlying renal abnormality. There are still many controversies regarding proper management of UTI. In this review article, the authors discuss recent recommendations for the diagnosis, treatment, prophylaxis, and imaging of UTI in childhood based on evidence, and when this is lacking, based on expert consensus. SOURCES Data were obtained after a review of the literature and a search of Pubmed, Embase, Scopus, and Scielo. SUMMARY OF THE FINDINGS In the first year of life, UTIs are more common in boys (3.7%) than in girls (2%). Signs and symptoms of UTI are very nonspecific, especially in neonates and during childhood; in many cases, fever is the only symptom. CONCLUSIONS Clinical history and physical examination may suggest UTI, but confirmation should be made by urine culture, which must be performed before any antimicrobial agent is given. During childhood, the proper collection of urine is essential to avoid false-positive results. Prompt diagnosis and initiation of treatment is important to prevent long-term renal scarring. Febrile infants with UTIs should undergo renal and bladder ultrasonography. Intravenous antibacterial agents are recommended for neonates and young infants. The authors also advise exclusion of obstructive uropathies as soon as possible and later vesicoureteral reflux, if indicated. Prophylaxis should be considered for cases of high susceptibility to UTI and high risk of renal damage.
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Affiliation(s)
- Ana Cristina Simões e Silva
- Department of Pediatrics, Unit of Pediatric Nephrology, Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil.
| | - Eduardo Araújo Oliveira
- Department of Pediatrics, Unit of Pediatric Nephrology, Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
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Simões e Silva AC, Oliveira EA. Update on the approach of urinary tract infection in childhood. JORNAL DE PEDIATRIA (VERSÃO EM PORTUGUÊS) 2015. [DOI: 10.1016/j.jpedp.2015.09.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Demir S, Tokmak N, Cengiz N, Noyan A. Value of sonographic anterior-posterior renal pelvis measurements before and after voiding for predicting vesicoureteral reflux in children. JOURNAL OF CLINICAL ULTRASOUND : JCU 2015; 43:490-494. [PMID: 25545034 DOI: 10.1002/jcu.22260] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 10/03/2014] [Accepted: 11/16/2014] [Indexed: 06/04/2023]
Abstract
PURPOSE Voiding cystourethrography (VCUG) is the gold standard for diagnosing vesicoureteral reflux (VUR), but it is important to minimize the use of VCUG because of the urinary catheterization and radiation exposure required. Ultrasound (US) observations suggest that pelvicalyceal dilatation varies according to the degree of bladder fullness in children with urinary tract infection. The aim of this study was to assess whether anterior-posterior (AP) measurements of the renal pelvis on US before and after voiding can be used as a screening tool while predicting the presence of VUR in children. METHODS The subjects were toilet-trained children older than 4 years who required VCUG. Two groups were established based on the VCUG results: a VUR group of 40 kidney units (each unit defined as calyces and ureter) that exhibited different severities of reflux, and a control group of 68 kidney units unaffected by VUR. Prior to VCUG, US AP measurements of the renal pelvis of each kidney unit were recorded when the urinary bladder was full and again after bladder emptying. The change in AP measurement from before to after voiding was compared between the two groups. RESULTS The mean change in AP measurements from before to after voiding in the VUR group was significantly greater than that in the control group (p = 0.003). CONCLUSIONS Comparing US AP measurements of the renal pelvis before and after voiding is useful for identifying children who are suspected to have VUR and thus require immediate VCUG.
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Affiliation(s)
- Senay Demir
- Baskent University Faculty of Medicine, Radiology, Adana, Turkey
| | - Naime Tokmak
- Baskent University Faculty of Medicine, Radiology, Adana, Turkey
| | - Nurcan Cengiz
- Baskent University Faculty of Medicine, Pediatric Nephrology, Adana, Turkey
| | - Aytul Noyan
- Baskent University Faculty of Medicine, Pediatric Nephrology, Adana, Turkey
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Abstract
Vesicoureteric reflux is defined as the retrograde passage of urine from the bladder into one or both ureters and often up to the kidneys, and mainly affects babies and infants. In severe cases dilatation of the ureter, renal pelvis, and calyces might be seen. Traditionally it was thought that only a low percentage of children have vesicoureteric reflux, but studies have suggested as many as 25-40% are affected. Guidelines recommend that the number of investigations for vesicoureteric reflux in children who have had a febrile urinary tract infection be reduced, but this approach is controversial. The recommendations also suggest that prophylactic antibiotics and surgery should be avoided in children with non-severe vesicoureteric reflux. In this Seminar I present data on the management of children with vesicoureteric reflux and give suggestions on how to navigate this difficult area.
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Affiliation(s)
- Kjell Tullus
- Department of Nephrology, Great Ormond Street Hospital for Children, London, UK.
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Awais M, Rehman A, Baloch NUA, Khan F, Khan N. Evaluation and management of recurrent urinary tract infections in children: state of the art. Expert Rev Anti Infect Ther 2014; 13:209-31. [PMID: 25488064 DOI: 10.1586/14787210.2015.991717] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Urinary tract infections (UTIs) represent an important cause of febrile illness in young children and can lead to renal scarring and kidney failure. However, diagnosis and treatment of recurrent UTI in children is an area of some controversy. Guidelines from the American Academy of Pediatrics, National Institute for Health and Clinical Excellence and European Society of Paediatric Radiology differ from each other in terms of the diagnostic algorithm to be followed. Treatment of vesicoureteral reflux and antibiotic prophylaxis for prevention of recurrent UTI are also areas of considerable debate. In this review, we collate and appraise recently published literature in order to formulate evidence-based guidance for the diagnosis and treatment of recurrent UTI in children.
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Affiliation(s)
- Muhammad Awais
- Department of Radiology, Aga Khan University Hospital, P.O. box 3500, Stadium Road, Karachi 74800, Sindh, Pakistan
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Stein R, Dogan HS, Hoebeke P, Kočvara R, Nijman RJM, Radmayr C, Tekgül S. Urinary tract infections in children: EAU/ESPU guidelines. Eur Urol 2014; 67:546-58. [PMID: 25477258 DOI: 10.1016/j.eururo.2014.11.007] [Citation(s) in RCA: 221] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 11/05/2014] [Indexed: 12/22/2022]
Abstract
CONTEXT In 30% of children with urinary tract anomalies, urinary tract infection (UTI) can be the first sign. Failure to identify patients at risk can result in damage to the upper urinary tract. OBJECTIVE To provide recommendations for the diagnosis, treatment, and imaging of children presenting with UTI. EVIDENCE ACQUISITION The recommendations were developed after a review of the literature and a search of PubMed and Embase. A consensus decision was adopted when evidence was low. EVIDENCE SYNTHESIS UTIs are classified according to site, episode, symptoms, and complicating factors. For acute treatment, site and severity are the most important. Urine sampling by suprapubic aspiration or catheterisation has a low contamination rate and confirms UTI. Using a plastic bag to collect urine, a UTI can only be excluded if the dipstick is negative for both leukocyte esterase and nitrite or microscopic analysis is negative for both pyuria and bacteriuria. A clean voided midstream urine sample after cleaning the external genitalia has good diagnostic accuracy in toilet-trained children. In children with febrile UTI, antibiotic treatment should be initiated as soon as possible to eradicate infection, prevent bacteraemia, improve outcome, and reduce the likelihood of renal involvement. Ultrasound of the urinary tract is advised to exclude obstructive uropathy. Depending on sex, age, and clinical presentation, vesicoureteral reflux should be excluded. Antibacterial prophylaxis is beneficial. In toilet-trained children, bladder and bowel dysfunction needs to be excluded. CONCLUSIONS The level of evidence is high for the diagnosis of UTI and treatment in children but not for imaging to identify patients at risk for upper urinary tract damage. PATIENT SUMMARY In these guidelines, we looked at the diagnosis, treatment, and imaging of children with urinary tract infection. There are strong recommendations on diagnosis and treatment; we also advise exclusion of obstructive uropathy within 24h and later vesicoureteral reflux, if indicated.
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Affiliation(s)
- Raimund Stein
- Division of Paediatric Urology, Department of Urology, Mainz University Medical Centre, Johannes Gutenberg University, Mainz, Germany.
| | - Hasan S Dogan
- Hacettepe University, Faculty of Medicine, Department of Urology, Division of Paediatric Urology, Ankara, Turkey
| | - Piet Hoebeke
- Department of Urology, Ghent University Hospital, Gent, Belgium
| | - Radim Kočvara
- Department of Urology, General Teaching Hospital in Praha, and Charles University 1st Faculty of Medicine, Praha, Czech Republic
| | - Rien J M Nijman
- Department of Urology, Division of Pediatric Urology, University of Groningen, Groningen, The Netherlands
| | - Christian Radmayr
- Department of Urology, Medical University of Innsbruck, Innsbruck, Austria
| | - Serdar Tekgül
- Hacettepe University, Faculty of Medicine, Department of Urology, Division of Paediatric Urology, Ankara, Turkey
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Acute 99mTc DMSA Scan Predicts Dilating Vesicoureteral Reflux in Young Children With a First Febrile Urinary Tract Infection. Clin Nucl Med 2013; 38:163-8. [DOI: 10.1097/rlu.0b013e318279f112] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tekgül S, Riedmiller H, Hoebeke P, Kočvara R, Nijman RJ, Radmayr C, Stein R, Dogan HS. EAU Guidelines on Vesicoureteral Reflux in Children. Eur Urol 2012; 62:534-42. [DOI: 10.1016/j.eururo.2012.05.059] [Citation(s) in RCA: 205] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Accepted: 05/25/2012] [Indexed: 11/28/2022]
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Screening high-grade vesicoureteral reflux in young infants with a febrile urinary tract infection. Pediatr Nephrol 2012; 27:955-63. [PMID: 22374404 DOI: 10.1007/s00467-012-2104-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 01/03/2012] [Accepted: 01/04/2012] [Indexed: 10/28/2022]
Abstract
BACKGROUND The lack of good evidence for improved outcomes in children and young infants with febrile urinary tract infection (UTI) after aggressive treatment for vesicoureteral reflux (VUR) has raised doubts regarding the need for routine voiding cystourethrography (VCUG), and the appropriate imaging evaluation in these children remains controversial. OBJECTIVES This prospective study aimed to determine whether abnormalities found on acute dimercaptosuccinic acid (DMSA) scan and ultrasound (US) can help indicate the necessity of voiding cystourethrography (VCUG) in young infants. METHODS For 3.5 years, all infants younger than 3 months presenting with first febrile UTI were prospectively studied. All infants were hospitalized and investigated using US (<3 days after admission), DMSA scan (<5 days after admission), and VCUG (7-10 days after antibiotic treatment) after diagnosis. The association among findings of US, DMSA scan, and VCUG were evaluated. RESULTS From 220 infants, there were abnormal results in 136 (61.8%) US and in 111 (50.5%) DMSA scans. By US, ten infants (4.5%) with abscess or structural abnormalities other than VUR were diagnosed. High-grade (III-V) VUR was present in 39 patients (17.7%). The sensitivities for high-grade VUR of renal US alone (76.9%) or DMSA scan alone (82.1%) were not as good as that of the "OR rule" strategy, which had 92.3% sensitivity and 94.3% negative predictive value. CONCLUSIONS To screen high-grade VUR in young infants with febrile UTI, US and acute DMSA scan could be performed first. VCUG is only indicated when abnormalities are apparent on either US or DMSA scan or both.
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Abstract
PURPOSE OF REVIEW The prevalence of urinary tract infections (UTIs) among full-term neonates has been reported to be up to 1.1%, increasing up to 7% among those with fever. UTI in neonates may be the first indicator of underlying abnormalities of kidneys and the urinary tract. RECENT FINDINGS Early recognition and therapy of UTI and detection of risk factors offer chances for applying strategies to avoid renal damage and recurrences. However, established diagnostic strategies and prophylactic concepts today are under debate. Currently, the main focus has been on renal changes as indicators for underlying risk factors like vesicoureteral reflux, attaching much importance to dimercaptosuccinyl acid scans. Serum and urine markers will probably allow more restrictive diagnostic imaging. Prenatal and postnatal ultrasound screenings provide additional opportunities for prophylactic measures. SUMMARY Main objectives in the management of neonatal UTIs are the prevention of acute infection-related complications and renal damage. Neonates and very young infants with suspicious pyelonephritis should obligatorily be treated with a combination of parenterally administered antibiotics. As far as possible, diagnostic imaging should be risk-oriented and restricted to noninvasive, nonstressful procedures. The strategies of antibacterial prophylaxis for the prevention of recurrent UTIs are changing. In infants at risk, its benefits have not yet been proven by evident data.
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