Adherence to guidelines prior to endoscopic sinus surgery in patients with chronic rhinosinusitis and asthma.

Introduction: Optimal care for patients with simultaneous chronic rhinosinusitis (CRS) and asthma is often complicated due to interaction between these conditions. This study depicts the lack of attention to asthma within the otorhinolaryngological field, and the relationship between CRS and asthma, including the risk of revision surgery in such patients.
Methods: A retrospective cohort study was conducted on patients undergoing functional endoscopic sinus surgery (FESS) because of CRS with nasal polyps (CRSwNP) and without nasal polyps in a five-year period. Patients were examined for adherence to guidelines, asthma, revision FESS, allergies and septo-/turbinoplasty. Results were compared to international reports.
Results: A total of 589 patients had FESS because of CRS of whom 203 (34.5%) had co-existing asthma. A higher risk of asthma (relative risk (RR) = 1.82 (95% confidence interval (CI): 1.29-2.56), p less-than 0.001) and revision FESS (RR = 2.20 (95% CI: 1.33-3.65), p less-than 0.001) was found in patients with CRSwNP. Attention to asthma was poor in patients with no asthma diagnosis before referral.
Conclusions: Asthma was lower in the study population than in the literature. Danish national guidelines on CRS management are insufficient regarding attention to asthma. Results call attention to the need for more multidisciplinary team management.
Funding: None.
Trial Registration: Not relevant.
(Published under Open Access CC-BY-NC-BD 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/.)