Factors affecting upper airway control of NSAID-exacerbated respiratory disease: A real-world study of 167 patients.

BACKGROUND: Nonsteroidal anti-inflammatory drug (NSAID) exacerbated respiratory disease (N-ERD) is a triad with asthma, chronic rhinosinusitis with nasal polyps, and NSAID intolerance. Uncontrolled N-ERD forms a major public health problem due to frequent and difficult-to-treat exacerbations and/or requiring putatively frequent endoscopic sinus surgeries (ESS). Our aim was to study factors affecting control of N-ERD. METHODS: Retrospective patient record data (patient characteristics, prior sinus surgeries, follow-up data in 2020) from 167 N-ERD patients undergoing consultation at three tertiary hospitals from 2001 to 2017 was used. Outcome measurements reflecting uncontrolled N-ERD were revision ESS, corticosteroids/biological therapy, and antibiotic courses during 2016-2020. Associations were analyzed by using nonparametric tests, Cox's proportional hazard, and binary logistic regression models. RESULTS: Nasal polyp eosinophilia increased the risk of revision surgery during the follow-up (adjusted hazard ratio [aHR] 3.21, confidence interval 1.23-8.38). Also baseline oral corticosteroids (OCS; HR, 1.73, 1.04-2.89) and baseline surgery without total ethmoidectomy increased the risk of revision ESS (HR, 2.17, 1.07-4.42) in unadjusted models. In addition, both baseline OCS (adjusted odds ratio [aOR] 2.78, 1.23-6.26) and a history of ≥4 previous ESS (aOR, 2.15, 0.98-4.70) were associated with the use of OCS/biological therapy during the follow-up, but not with high number of antibiotics. CONCLUSIONS: Nasal polyp eosinophilia, baseline OCS, and a history of recurrent ESS predict uncontrolled N-ERD. These factors might be clinically useful in risk-estimation of uncontrolled disease and for organizing follow-ups. Prospective cohort studies with larger sample size are needed to further study the factors affecting the upper airway control of N-ERD.

High Discontinuation Rates of Peroral ASA Treatment for CRSwNP: A Real-World Multicenter Study of 171 N-ERD Patients.

BACKGROUND: Nonsteroidal anti-inflammatory drug (NSAID) exacerbated respiratory disease (N-ERD) consists of chronic rhinosinusitis with nasal polyposis (CRSwNP), asthma, and NSAID intolerance. Acetylsalicylic acid treatment after desensitization (ATAD) is a treatment option for uncontrolled N-ERD. OBJECTIVE: To evaluate peroral ATAD's long-term effectiveness on CRSwNP disease control. METHODS: The retrospective data (patient characteristics, sinus surgeries before ATAD, ATAD, follow-up data [2019]) were collected from patient records of 171 patients with N-ERD (102 ATAD patients, 69 controls with CRSwNP+N-ERD without ATAD) who underwent tertiary hospital consultation from 2001 to 2017. Outcome measurements were ATAD discontinuation, revision sinus surgery, and corticosteroid and antibiotic courses for airway infections during 2016-2019. Associations were analyzed by survival and nonparametric methods. RESULTS: The ATAD group had more tissue eosinophilia, symptoms, and sinus surgeries before ATAD than others. The ATAD discontinuation rate was 63%, independent of ATAD dose or duration, usually due to side effects. Compared with the N-ERD group without ATAD, ATAD (mean duration, 2.9 years) did not affect the revision endoscopic sinus surgery rate (P = .21, by the log-rank test) or the number of peroral corticosteroid courses per year (P > .05, by the Mann-Whitney U-test) during the follow-up (mean, 7.6 years) despite the dose or duration of ATAD. CONCLUSIONS: The discontinuation rate of ATAD was high (63%), and ATAD did not affect revision sinus surgery rate nor the need of peroral corticosteroids during follow-up. However, the remaining 37% of the ATAD group did continue the treatment, indicating that they may have benefited from ATAD.