Treatment of Acute Bacterial Prostatitis in Adults (Age 18+) Unable to Take Oral Antibiotics or Severely Unwell
This protocol addresses acute bacterial prostatitis in patients aged 18 years and over who cannot take oral medicines or who present as severely unwell, where intravenous antibiotic therapy is required as first-line management.
Clinical Scenario
First-line · IV route · Adults 18+
Antibiotic therapy is indicated for patients presenting with acute prostatitis. When the patient is unable to take oral antibiotics or is severely unwell, intravenous antibiotics are the first-choice approach.
The choice of antibiotic should be guided by local antimicrobial resistance data and susceptibilities when available.
Treatment Approach
The first-choice approach in this group involves intravenous antibiotic therapy, with several antibiotic options available depending on local susceptibility data. Where sepsis is a concern, antibiotics may be combined. Intravenous therapy is reviewed at 48 hours, with a step-down to oral antibiotics considered where clinically appropriate.
The specific agents, selection criteria, combination guidance, and step-down criteria are set out in the full protocol.
Clinical Goals
- Clinical improvement within 48 hours sufficient to consider stepping down to oral antibiotics.
- Resolution of fever at the 14-day clinical review.
- Resolution of lower urinary tract symptoms: dysuria, urinary frequency, and urinary urgency.
- Absence of acute urinary retention at clinical review.
Treatment is continued beyond 14 days only if ongoing symptoms — such as fever or lower urinary tract symptoms — require it, based on clinical assessment.
References
- Offer an antibiotic to people with acute prostatitis.
- When prescribing an antibiotic for acute prostatitis, take account of local antimicrobial resistance (AMR) data from Public Health England and follow table 1 for adults aged 18 years and over.
- First-choice intravenous antibiotics (if unable to take oral antibiotics or severely unwell; guided by susceptibilities when available).
- Antibiotics may be combined if sepsis a concern.
- Review intravenous antibiotics by 48 hours and consider stepping down to oral antibiotics where possible for a total of 14 days then review.
- Review antibiotic treatment after 14 days and either stop the antibiotic or continue for a further 14 days if needed, based on an assessment of the person's history, symptoms, clinical examination, urine and blood tests.
- Continued symptoms, such as fever or lower urinary tract symptoms (dysuria, frequency, urgency, or acute urinary retention) require ongoing treatment.
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