The Term "Urosepsis" in Clinical Practice
Yes, the term "urosepsis" is still actively used in clinical practice to describe sepsis originating from urinary tract infections. 1
Definition and Clinical Significance
- Urosepsis is defined as sepsis caused by a urogenital tract infection, representing approximately 25% of all sepsis cases 2, 3
- It is characterized as life-threatening organ dysfunction resulting from a dysregulated host response to infection originating in the urinary tract 1
- Clinical assessment includes evaluation using Sequential Organ Failure Assessment (SOFA) or quick SOFA (qSOFA) scores to determine severity and risk of mortality 4
- While the overall incidence of sepsis is decreasing, there has been a notable rise in severe UTIs leading to urosepsis 1
Diagnostic Approach
- Diagnosis requires complete microbiological sampling, including two sets of blood cultures before starting antimicrobials 4
- Early imaging studies are essential to identify urinary tract obstruction, stones, or abscesses that may be causing urosepsis 4
- Ultrasound is often the first imaging modality of choice in suspected urosepsis due to its portability and rapid acquisition 1
- CT imaging plays an important role in evaluation of patients with suspected urosepsis due to its high positive predictive value 1
Management Framework
Treatment of urosepsis comprises four major aspects 4, 2, 3:
- Early diagnosis
- Early goal-directed therapy including optimal antimicrobial treatment
- Identification and control of complicating factors in the urinary tract
- Specific sepsis therapy
Empiric antimicrobial treatment options include 1, 4:
- Amoxicillin plus an aminoglycoside
- A second-generation cephalosporin plus an aminoglycoside
- An intravenous third-generation cephalosporin
Fluoroquinolones should be avoided if local resistance rates are ≥10% or if the patient has used them in the last 6 months 1, 4
Source Control
- Identifying and addressing any urinary tract obstruction or anatomical abnormality within 12 hours of diagnosis is critical 4, 3
- Any indwelling urinary catheter should be removed or replaced before starting antimicrobial therapy 4
- The least invasive approach for source control should be utilized 4, 5
Common Pitfalls to Avoid
- Delaying antimicrobial therapy beyond one hour in patients with septic shock significantly increases mortality 4, 6
- Failing to obtain appropriate cultures before starting antimicrobials 4
- Neglecting source control, particularly in obstructive uropathy 4, 3
- Using fluoroquinolones empirically in areas with high resistance rates 1, 4