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Upper urinary tract infection — Clinical Guidelines

Overview

Upper urinary tract infection (UTI) involves infections of the kidney (pyelonephritis) and ureter, often presenting with flank pain, fever, and hematuria. 7

Diagnosis

Clinical Presentation: Flank pain, fever, dysuria, hematuria 7

Laboratory Tests: Urinalysis (pyuria, bacteriuria, hematuria), blood cultures 1 7

Imaging: Ultrasound, CT scan to assess for structural abnormalities or complications 1 7

Urine Culture: Essential for identifying causative organisms and guiding antibiotic therapy 1 7

Management

Antibiotics: Initial broad-spectrum coverage followed by targeted therapy based on culture results (e.g., fluoroquinolones, cephalosporins) 1 7

Supportive Care: Hydration, pain management, monitoring for complications like sepsis 1 7

Surgical Intervention: Considered for refractory cases, obstruction, or abscess formation 1 7

Special Populations

Elderly: Higher risk of complications; careful monitoring and tailored antibiotic therapy 1 7

Comorbidities: Presence of diabetes or immunosuppression may necessitate longer treatment durations and closer follow-up 1 7

Key Recommendations

Initiate Empiric Antibiotic Therapy Based on clinical suspicion and local resistance patterns (Evidence: Moderate) 1 7

Perform Urine Culture and Sensitivity Testing To guide definitive antibiotic therapy (Evidence: Strong) 1 7

Consider Imaging For patients with recurrent infections, atypical presentations, or complications (Evidence: Moderate) 1 7

References

1 Masson-Lecomte A, Birtle A, Pradere B, Capoun O, Compérat E, Domínguez-Escrig JL et al.. European Association of Urology Guidelines on Upper Urinary Tract Urothelial Carcinoma: Summary of the 2025 Update. European urology 2025. link 2 Yoshizawa S, Tachi T, Takahashi Y, Aoyama S, Noguchi Y, Tanaka K et al.. Impact of Polypharmacy and Risk Factors for Exacerbation of Lower Urinary Tract Symptoms in Patients with Urological Conditions: A Retrospective Study in a Japanese Municipal Hospital. Biological & pharmaceutical bulletin 2024. link 3 Rouprêt M, Seisen T, Birtle AJ, Capoun O, Compérat EM, Dominguez-Escrig JL et al.. European Association of Urology Guidelines on Upper Urinary Tract Urothelial Carcinoma: 2023 Update. European urology 2023. link 4 Gold SA, Kenigsberg AP, Lotan Y. Diagnostic and Cost Implications of the 2020 AUA Microhematuria Guidelines: Modeling Impact in a Large Public Health Care System. The Journal of urology 2022. link 5 Burton CS, Gonzalez G, Vaculik K, Khalil C, Zektser Y, Arnold C et al.. Female Lower Urinary Tract Symptom Prevention and Treatment Strategies on Social Media: Mixed Correlation With Evidence. Urology 2021. link 6 Kahng PW, Wu X, Ramesh NP, Pastel DA, Halter RJ, Paydarfar JA. Improving target localization during trans-oral surgery with use of intraoperative imaging. International journal of computer assisted radiology and surgery 2019. link 7 Arora HC, Fascelli M, Zhang JH, Isharwal S, Campbell SC. Kidney, Ureteral, and Bladder Cancer: A Primer for the Internist. The Medical clinics of North America 2018. link 8 Rouprêt M, Babjuk M, Compérat E, Zigeuner R, Sylvester RJ, Burger M et al.. European Association of Urology Guidelines on Upper Urinary Tract Urothelial Carcinoma: 2017 Update. European urology 2018. link 9 David SA, Patil D, Alemozaffar M, Issa MM, Master VA, Filson CP. Urologist Use of Cystoscopy for Patients Presenting With Hematuria in the United States. Urology 2017. link 10 Stamatiou K, Sgouridou M. The Poet and the Disease. Le infezioni in medicina 2016. link 11 Polenakovic M, Popov Z. 5. Uro-Oncology Winter Congress. Prilozi (Makedonska akademija na naukite i umetnostite. Oddelenie za medicinski nauki) 2015. link 12 Rouprêt M, Babjuk M, Compérat E, Zigeuner R, Sylvester RJ, Burger M et al.. European Association of Urology Guidelines on Upper Urinary Tract Urothelial Cell Carcinoma: 2015 Update. European urology 2015. link 13 Rouprêt M. How could molecular biology modify the management of upper urinary tract tumours?. Archivos espanoles de urologia 2013. link 14 Berod AA, Colin P, Yates DR, Ouzzane A, Audouin M, Adam E et al.. The role of American Society of Anesthesiologists scores in predicting urothelial carcinoma of the upper urinary tract outcome after radical nephroureterectomy: results from a national multi-institutional collaborative study. BJU international 2012. link 15 Gkougkousis EG, Mellon JK, Griffiths TR. Management of the distal ureter during nephroureterectomy for upper urinary tract transitional cell carcinoma: a review. Urologia internationalis 2010. link 16 Storr TM, Quibell R. Can ketamine prescribed for pain cause damage to the urinary tract?. Palliative medicine 2009. link 17 Masarani M, Willis RG. Urethral dilatation in women: urologists' practice patterns in the UK. Annals of the Royal College of Surgeons of England 2006. link 18 Rees CJ, Halum SL, Wijewickrama RC, Koufman JA, Postma GN. Patient tolerance of in-office pulsed dye laser treatments to the upper aerodigestive tract. Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery 2006. link 19 Nuotio M, Jylhä M, Luukkaala T, Tammela TL. Health problems associated with lower urinary tract symptoms in older women. A population-based survey. Scandinavian journal of primary health care 2005. link 20 Hammond EH, Henson DE. Practice protocol for the examination of specimens removed from patients with carcinoma of the urinary bladder, ureter, renal pelvis, and urethra. Archives of pathology & laboratory medicine 1996. link 21 Barra S, Barón AE, Barzan L, Caruso G, Veronesi A, Talamini R et al.. Patients compliance in an early detection program for upper aero-digestive tract tumours in north-eastern Italy. Sozial- und Praventivmedizin 1990. link 22 Moloney PJ, Fenster HN, McLoughlin MC. Carcinoma in the defunctionalized urinary tract. The Journal of urology 1981. link54467-5)

Upper urinary tract infection