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Acute upper urinary tract infection — Clinical Guidelines

Overview

Acute upper urinary tract infections encompass conditions such as pyelonephritis and severe cystitis, often requiring urgent medical intervention due to potential complications like sepsis and renal impairment. 13

Diagnosis

Clinical Presentation: Fever, flank pain, dysuria, hematuria, and signs of systemic infection. 13

Laboratory Tests: Elevated white blood cell count, urinalysis showing pyuria and bacteriuria. 13

Imaging: Renal ultrasound or CT scan to rule out obstruction or abscess formation. 18

Urine Culture: Essential for identifying the causative organism and guiding antibiotic therapy. 13

Management

Antibiotics: Initial broad-spectrum coverage followed by targeted therapy based on culture results (e.g., fluoroquinolones, cephalosporins). 13

Fluid Resuscitation: Intravenous fluids to maintain hydration and support renal perfusion. 13

Pain Management: Analgesics such as NSAIDs or opioids for severe pain. 13

Monitoring: Close observation for signs of sepsis and renal function impairment. 13

Surgical Intervention: Considered for complications like abscess drainage or relief of obstruction. 18

Special Populations

Pediatrics: Increased vigilance for dehydration and renal impairment; consider imaging more frequently. 13

Elderly: Higher risk of complications; careful monitoring of renal function and fluid balance. 13

Comorbidities: Patients with diabetes or immunocompromised states require more aggressive management and closer monitoring. 13

Key Recommendations

Implement standard operating procedures (SOPs) to improve adherence to guidelines and reduce morbidity and mortality. (Evidence: Strong 1)

Utilize bedside ultrasound by trained personnel for rapid assessment of urological emergencies to guide immediate management decisions. (Evidence: Moderate 19 20)

Ensure adequate training through simulation-based education to enhance both technical and nontechnical skills in managing urological emergencies. (Evidence: Moderate 6 9)

Maintain readiness for emergency interventions despite pandemics, ensuring essential urological care is not compromised. (Evidence: Expert opinion 16 17)

References

1 Waldbillig F, Michel MS. [Value of standard operating procedures (SOP) in the treatment of urological emergencies]. Urologie (Heidelberg, Germany) 2026. link 2 Michels G, Neisius A. [Primary assessment of urological emergencies using the example of a specialist hospital]. Urologie (Heidelberg, Germany) 2026. link 3 Ortaç M, Ergül RB, Yazılı HB, Özervarlı MF, Tonyalı Ş, Sarılar O et al.. ChatGPT's competence in responding to urological emergencies. Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES 2025. link 4 Ouanes Y, Chaker K, Marrak M, Rahoui M, Bibi M, Dely KM et al.. Learning by Clinical Reasoning Versus Interactive Lecture: An Analytical and Experimental Study of Teaching Urological Emergencies. Urology 2025. link 5 Tripathy TP, Fatima K, Patel RK, Alagappan A, Singh J, Mohakud S et al.. Emergency endovascular and percutaneous urological interventions: A pictorial review. Emergency radiology 2024. link 6 Kifle AT, Trail M, Tsega TA, Demilow TL, Teferi GT, Payne SR et al.. A needs assessment for simulation-based training in emergency urological skills in Ethiopia. World journal of surgery 2024. link 7 Seizilles de Mazancourt E, Goujon A, Cotte J, Peyrottes A, Margue G, Mjaess G et al.. Thirty-five years of the French Association of Urologists in Training (AFUF) a scoping review and bibliometric analysis of scientific literature conducted by urologists in training. World journal of urology 2024. link 8 Klein R, Jackman S, Nelson J. A Single-resident Experience of Overnight Call Activity at a Multi-site Academic Health System. Urology 2024. link 9 Lee J, Venishetty N, Movassaghi M, Kovac E, Winer A, Anderson CB et al.. The New York Section EMPIRE Collaborative: Piloting a Multi-Institutional, Simulation-Based Surgical Skills Boot Camp for Junior Urology Residents. Urology practice 2024. link 10 Hafer AS, Sweeney WB, Battista AL, Meyer HS, Franklin BR. Development and Implementation of Urologic Care Army/Air Force/Navy Provider Education, a Urologic Emergency Simulation Curriculum. Military medicine 2023. link 11 Georgiou M, Ridzuan-Allen A, Chamsin A, Siddiqui Z, Tolofari S, Ejikeme C et al.. Emergency Urology procedures during the COVID-19 pandemic in the UK: A 3-month prospective study. Urologia 2023. link 12 Chiron P, Savoie PH, Boissier R, Long JA. [Rare emergencies in urology]. Progres en urologie : journal de l'Association francaise d'urologie et de la Societe francaise d'urologie 2021. link 13 Kranz J, Steffens J, Michels G, Schneidewind L. [Urological emergency management : Detection and treatment]. Medizinische Klinik, Intensivmedizin und Notfallmedizin 2021. link 14 Gan ZS, Williams C, Familusi OO, El-Fahmawi A, Kabaha R, Lee DJ et al.. Urologic emergencies before and after COVID-19: a retrospective chart review. The Canadian journal of urology 2021. link 15 Bullock N, Ellul T, Biers S, Armitage J, Cashman S, Narahari K et al.. Establishing a national high fidelity cadaveric emergency urology simulation course to increase trainee preparedness for independent on-call practice: a prospective observational study. BMC medical education 2020. link 16 de la Reza MT, Autrán-Gómez AM, Tardío GU, Bolaños JA, Rivero JCG. Emergency Surgery in Urology during the COVID-19 Pandemic. International braz j urol : official journal of the Brazilian Society of Urology 2020. link 17 Porreca A, Colicchia M, D'Agostino D, Amenta M, Corsaro A, Zaramella S et al.. Urology in the Time of Coronavirus: Reduced Access to Urgent and Emergent Urological Care during the Coronavirus Disease 2019 Outbreak in Italy. Urologia internationalis 2020. link 18 Manjunath AS, Hofer MD. Urologic Emergencies. The Medical clinics of North America 2018. link 19 Surange RS, Jeygopal NS, Chowdhury SD, Sharma NK. Bedside ultrasound: a useful tool for the on-call urologist?. International urology and nephrology 2001. link 20 Nargund VH, Cumming JA, Jerwood D, Sapherson DA, Flannigan GM, Stewart PA. Ultrasound in urological emergency: results of self audit and implications for training. International urology and nephrology 1996. link

Acute upper urinary tract infection