Intranasal corticosteroids and saline: Usage and adherence in chronic rhinosinusitis patients.

<bold>Objective: </bold>Intranasal saline irrigations and intranasal corticosteroids are supported by level-1 evidence for medical management of chronic rhinosinusitis (CRS). We sought to study adherence with these medications.<bold>Methods: </bold>Prospective study of 174 patients with CRS. Patients reported their usage of intranasal saline irrigation and intranasal corticosteroid over the preceding 3 months, at presentation, and a subsequent follow-up visit 3 to 12 months later. Adherence was defined as reported medication usage for ≥6 days per week.<bold>Results: </bold>At the time of presentation, 44.3% of patients were using an intranasal corticosteroid spray or irrigation ≥6 days/week, whereas only 24.1% were using saline irrigation ≥6 days per week. At follow-up, 60.3% of patients were using either an intranasal corticosteroid spray or irrigation ≥6 days per week, whereas 35.6% were using saline irrigation ≥6 days per week. Adherence with intranasal corticosteroids was associated with comorbid asthma (adjusted odds ratio [OR] = 2.68, 95% confidence interval [CI]: 1.10-6.50, P = 0.029), allergy (OR = 2.22, 95% CI: 1.05-4.71, P = 0.037), and change in 22-item Sinonasal Outcome Test score (OR = 0.98, 95% CI: 0.96-0.99, P = 0.027). Use of intranasal corticosteroid sprays versus irrigations (OR = 2.56, 95% CI: 0.84-7.83, P = 0.099) was suggestive of association with improved adherence. Adherence with intranasal saline irrigation was associated with age (OR = 1.02, 95% CI: 1.01-1.05, P = 0.034).<bold>Conclusion: </bold>Usage and adherence with intranasal steroids and saline may be low in CRS patients even with management in a tertiary level, subspecialty rhinology clinic. Adherence with medications represents a major opportunity for improving patient care and outcomes, specifically by targeting patients with lower disease burden and improving convenience of medications.<bold>Level Of Evidence: </bold>2C Laryngoscope, 130:852-856, 2020. [ABSTRACT FROM AUTHOR]