Infectious complications after transrectal MRI-targeted and systematic prostate biopsy - Scorecard - MDSpire

Infectious complications after transrectal MRI-targeted and systematic prostate biopsy

  • By

  • Inari Kalalahti

  • Kaisa Huotari

  • Andrew. M. Erickson

  • Anssi Petas

  • Hanna Vasarainen

  • Antti Rannikko

  • August 5, 2022

  • 0 min

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Clinical Scorecard: Infectious Risks Following Transrectal MRI-Guided and Systematic Prostate Biopsy

At a Glance

CategoryDetail
ConditionProstate cancer diagnosis and follow-up via prostate biopsy
Key MechanismsTransrectal biopsy involves needle puncture through bowel wall potentially spreading bacteria; MRI-targeted biopsy uses fewer cores reducing infection risk
Target PopulationMen undergoing prostate biopsy for prostate cancer diagnosis or active surveillance
Care SettingHospital outpatient or inpatient urology clinics performing transrectal prostate biopsies

Key Highlights

  • Infection rates after transrectal prostate biopsy range from 0.1% to 7.0%, with sepsis rates 0.3% to 3%.
  • MRI-targeted biopsy (MRI-TB) uses fewer cores (average 3.7) compared to systematic biopsy (SB) with 12 cores, resulting in fewer infectious complications.
  • No significant difference in blood culture positive sepsis between MRI-TB and SB, but other infection markers and symptoms are significantly lower after MRI-TB.

Guideline-Based Recommendations

Diagnosis

  • Use MRI and MRI-targeted biopsy to improve prostate cancer detection compared to systematic biopsy.

Management

  • Administer antibiotic prophylaxis prior to biopsy; ciprofloxacin 750 mg orally 1 hour before biopsy is standard.
  • Use fosfomycin trometamol instead of ciprofloxacin if patient has recent travel history abroad within 3 months.

Monitoring & Follow-up

  • Monitor for infectious complications within 30 days post-biopsy using urine cultures, blood cultures, urine leukocyte counts, and C-reactive protein (CRP) levels.
  • Increased testing frequency (urine cultures, CRP) may reflect higher suspicion of infection, especially after systematic biopsy.

Risks

  • Transrectal biopsy carries risk of infection due to needle passage through bowel wall.
  • Higher number of biopsy cores (as in systematic biopsy) is associated with increased bleeding and pain; infection risk may also be higher.
  • Antibiotic overuse has led to fluoroquinolone-resistant Escherichia coli as the most common pathogen post-biopsy.

Patient & Prescribing Data

Patients undergoing transrectal prostate biopsy for prostate cancer diagnosis or surveillance.

Antibiotic prophylaxis reduces infection risk but resistance is increasing; MRI-targeted biopsy reduces infectious complications likely due to fewer cores taken.

Clinical Best Practices

  • Prefer MRI-targeted biopsy over systematic biopsy when feasible to reduce infectious complications.
  • Use appropriate antibiotic prophylaxis tailored to patient travel history to minimize resistant infections.
  • Closely monitor patients post-biopsy for signs of infection using urine and blood cultures and inflammatory markers.
  • Educate patients about infection symptoms and ensure prompt evaluation if symptoms develop post-biopsy.

References

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