Introduction

What this lesson covers A UTI carries a higher risk of an unfavorable course when patient or urinary tract conditions make it harder to resolve. This lesson reviews those risk factors and the current approach to classifying them.

Video lesson

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Video pending upload (embedded YouTube)

Summary

For students, it is useful to first explain the traditional concept: a UTI carries a higher risk of an unfavorable course when patient or urinary tract conditions make it harder to resolve.

Important risk factors

Urinary obstruction.
Stone disease.
Urinary catheter.
Recent instrumentation.
Anatomical abnormalities.
Elevated postvoid residual.
Neurogenic dysfunction.
Renal failure.
Immunosuppression.
Resistant organisms.
Recent antibiotic exposure.

Current approach (EAU)

The modern EAU classification prefers to identify localized or systemic UTI + risk factors, rather than dividing cases exclusively into complicated/uncomplicated.

Fundamental urological concept

Antibiotics + an infected obstruction may not be enough. An infection associated with urinary obstruction may require urgent drainage of the urinary tract in addition to antimicrobial treatment.

Example

A patient with fever + flank pain + obstructing ureteral stone + hydronephrosis. This is not simply "a stone with infection": it must be considered a urological emergency.

PDF

⬇ Download module guide (PDF)

Urinary tract infections — Guide for Medicine: uncomplicated and complicated UTI, pyelonephritis, prostatitis, epididymitis/orchitis, urethritis and STIs, urine culture interpretation, and rational antibiotic use (all 8 topics of the module in a single document).

Practical algorithm

Content pending upload The general algorithm for the whole module (patient with urinary symptoms → localized vs. systemic UTI → management) is developed in the lesson "Rational antibiotic use" (block 5).

Clinical case

Content pending upload Progressive presentation of the case — the student makes decisions as it unfolds.

Self-assessment

Questions pending upload 5–10 multiple-choice questions on this lesson.

References

European Association of Urology (EAU) — Guidelines on Urological Infections.

Source cited in the PDF study guide (block 4).

Complicated urinary tract infection