Drug-eluting implants in chronic rhinosinusitis: an evidence-based review with recommendations

Drug-eluting implants are becoming increasingly popular in the treatment of chronic rhinosinusitis (CRS). A previous attempt to make an evidence-based recommendation was hindered by limited evidence and experience with these implants. Since that time, the body of literature discussing drug-eluting implants has grown rapidly. The objective of this study was to review drug-eluting implants designed for use in the sinonasal cavity through an evidence-based review with recommendations.

A systematic review of the literature was performed using PubMed, EMBASE, Cochrane Review, and gray literature databases from January 1990 through February 2019 to examine drug-eluting implants used in CRS. Benefit-harm assessments, value judgments, and recommendations were made based on the available evidence. Study exclusion criteria included studies unavailable in English and non-endoscopic sinus surgeries. All authors agreed on recommendations through an iterative process.

Thirty-one studies were included in the final analysis. Absorbable drug-eluting implants achieved a high aggregate grade of evidence (A), with a recommendation for their use to be considered in carefully selected patients. Nonabsorbable drug-eluting implants were recommended against due to minimal evidence supporting clinical efficacy. Antibiotic and alternative drug-eluting implants lack sufficient evidence for recommendations.

Absorbable steroid-eluting implants are recommended for carefully selected patients with CRS. Additional research to define appropriate patient selection is needed.