Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/1/2025

Postoperative Systemic Steroid Use in Rhinosinusitis

General Recommendations for Postoperative Systemic Steroid Use

  • The EPOS 2020 steering group suggests that 1-2 courses of systemic corticosteroids per year can be a useful addition to nasal corticosteroid treatment in patients with partially or uncontrolled disease 1
  • Postoperative systemic corticosteroids have not been shown to significantly improve SNOT-22 scores at 1, 3, or 6 months after surgery in general chronic rhinosinusitis with nasal polyps (CRSwNP) patients 2, 3
  • Short courses of systemic corticosteroids can be associated with adverse effects including insomnia, mood changes, gastrointestinal issues, and rarely more serious complications like avascular necrosis 2

Special Considerations for AFRS Patients

  • In allergic fungal rhinosinusitis (AFRS) patients, postoperative systemic corticosteroids have shown significant benefits 4, 5
  • Postoperative systemic corticosteroids improve short-term outcomes in AFRS (Level 1b evidence) 6, 5
  • Postoperative systemic corticosteroids are likely to reduce long-term recurrence in AFRS (Level 2b evidence) 6, 5
  • A randomized controlled trial showed that a 6-month postoperative corticosteroid regimen in AFRS patients was associated with less recurrence (10%) compared to a 2-month taper (30%) 4, 5

Dosing Protocols for Postoperative Steroids

  • For general CRSwNP patients, a short course of prednisolone 30-60mg daily for 7-14 days with appropriate tapering is recommended 1, 2
  • For AFRS patients, longer and more gradual tapering is recommended, such as prednisolone 1mg/kg/day for 1 week preoperatively and 0.5mg/kg/day for 4 weeks postoperatively, then 0.4mg/kg/day for 4 weeks, tapered to 0.2mg/kg/day for 2 months and to 0.1mg/kg/day for the last 2 months 4, 5

Risks and Adverse Effects

  • Five out of 12 patients in one study developed Cushingoid features and one developed steroid-induced diabetes mellitus after 6 weeks of prednisolone 50mg daily 4
  • Rare but serious complications can include avascular necrosis 2

Practical Recommendations for Steroid Tapering

  • Gradual tapering allows the hypothalamic-pituitary-adrenal axis to recover 7

Common Pitfalls to Avoid

  • Do not rely solely on systemic steroids without appropriate local therapy (intranasal corticosteroids) 1, 6