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    Interventional procedure overview of corticosteroid-releasing bioabsorbable stent or spacer insertion during endoscopic sinus surgery for chronic rhinosinusitis

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    Endoscopic sinus surgery is used to treat CRS that is refractory to medication. The aim is to open the sinuses and allow topical medical therapy to reach the sinuses. Adhesions and scarring can develop after such surgery, and further interventions may be needed. Dissolvable nasal packing is often used after surgery to try to prevent adhesions. Postoperative interventions aimed at minimising complications include nasal douches and corticosteroids. The efficacy of topical corticosteroid drops or sprays is limited by postoperative oedema, discharge and crusting, and oral corticosteroids have systemic risks.

    Insertion of corticosteroid-eluting bioabsorbable stents or spacers aims to decrease the rate of adhesions after endoscopic sinus surgery and maintain better longer-term patency.