Should the patient continue Augmentin and prednisone?
Yes, the patient should continue both Augmentin and his current maintenance dose of prednisone for the infection. The presence of an active infection does not require stopping maintenance glucocorticoids in rheumatoid arthritis patients, and Augmentin is appropriate for use in patients with renal impairment.
Prednisone Management During Infection
Continue the current maintenance dose of prednisone without interruption. The ACR guidance explicitly states that glucocorticoids should be continued at the lowest effective dose to control underlying disease and avoid adrenal insufficiency, even in the context of infection 1, 2. The FDA label reinforces that abrupt withdrawal should be avoided, and patients on long-term therapy remain vulnerable during stressful situations like infections 3.
Key Considerations for Glucocorticoid Continuation:
- Adrenal suppression risk: Patients on chronic prednisone have suppressed HPA axis function and cannot mount an adequate stress response if steroids are stopped 3
- Disease control: Stopping prednisone risks an RA flare, which could compound the patient's clinical situation 4
- Infection management: While high-dose glucocorticoids (>20 mg/day prednisone equivalent) increase infection risk 4, maintenance doses should be continued to prevent adrenal crisis 1, 2
Important caveat: If the patient requires stress-dose steroids due to severe infection, this should be considered separately from the maintenance dose. However, the 2017 ACR/AAHKS guideline recommends continuing the current daily dose rather than administering supraphysiologic "stress dosing" in most situations 4.
Augmentin Use in Solitary Kidney
Augmentin can be safely continued with appropriate dose adjustment for renal function. Research specifically demonstrates that amoxicillin-clavulanate provides effective prophylaxis against wound infections in renal failure patients, with bactericidal concentrations maintained for up to 20 hours post-operatively in dialysis patients 5.
Dosing Considerations:
- Renal adjustment required: Antibiotic dosing must be carefully evaluated based on the patient's current renal function 6
- Monitoring: The patient's nephrologist should be consulted regarding appropriate dose adjustments given the solitary kidney status
- Efficacy: Augmentin remains effective in renal impairment when properly dosed 5
Common Pitfalls to Avoid:
- Do not abruptly stop prednisone - This can precipitate adrenal crisis, particularly dangerous during the stress of infection 3
- Do not use standard Augmentin dosing - Dose must be adjusted for renal function to prevent drug accumulation 6
- Do not assume immunosuppression requires stopping all medications - The evidence shows maintenance glucocorticoids should continue during infection 1, 2
Monitoring Strategy
While continuing both medications:
- Monitor infection response: Assess clinical improvement on Augmentin therapy
- Watch for adverse effects: Gastrointestinal symptoms are more common with amoxicillin-clavulanate (RR 1.15) 7
- Renal function surveillance: Given solitary kidney, monitor creatinine and adjust Augmentin dosing accordingly 6
- Glucocorticoid effects: Maintain vigilance for signs of inadequate infection control, which could indicate need for infectious disease consultation rather than medication changes
The combination of maintaining prednisone for RA control while treating infection with appropriately-dosed Augmentin represents the evidence-based approach for this clinical scenario.