Steroid-eluting Sinus Stent for Chronic Rhinosinusitis Patients With Uncontrolled Postoperative Symptoms
Conditions
Interventions
- PROCEDURE: steroid-eluting sinus stent implant
- DRUG: Systemic glucocorticoids
- DRUG: saline irrigations
- DRUG: Placebo
- PROCEDURE: sham procedure
Sponsor
Zheng Liu