Abstract
Background: Chronic rhinosinusitis (CRS) is complicated by frequent acute exacerbations leading to significant health care burden and impaired quality of life. Objective: The objective of this study was to identify clinical factors associated with frequent acute exacerbation of CRS (AECRS). Methods: This is a retrospective cohort study of patients with CRS from January 1, 2014, to May 31, 2016. Frequent AECRS was defined as at least 4 episodes over a 12-month period in which an antibiotic was prescribed for worsening sinus symptoms, and infrequent AECRS was defined as 0 to 3 episodes. Clinical factors, including asthma, allergic rhinitis, eosinophil count of at least 150 cells per microliter, and autoimmune disease, were evaluated for associations between the 2 groups. Results: Of the 3109 patients with CRS who were identified, 600 (19.3%) were classified as having frequent exacerbation. Asthma, allergic rhinitis, eosinophil count of at least 150 cells per microliter, and autoimmune disease were associated with frequent AECRS with statistically significant adjusted odds ratios (aORs) after controlling for age, race, and sex in multivariate analysis (asthma aOR = 2.61 [95% CI = 2.14-3.18]; allergic rhinitis aOR = 1.96 [95% CI = 1.58-2.42]; eosinophil count of at least 150 cells per microliter aOR = 1.54 [95% CI = 1.21-1.97]; and autoimmune disease aOR = 1.68 [95% CI = 1.36-2.07]). Antibody deficiency, antibiotic allergy, lower FEV1, radiographic sinus disease severity, nasal polyposis, and systemic corticosteroid use were also associated with frequent AECRS. Conclusion: Patients with frequent episodes of AECRS were characterized by a higher prevalence of asthma, allergic rhinitis, eosinophil count of at least 150 cells per microliter, autoimmune disease, and other allergic and immunologic diseases. These findings identify a high-risk phenotype of patients with CRS for preventive interventions to reduce exacerbation frequency.
Original language | English (US) |
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Pages (from-to) | 1598-1605 |
Number of pages | 8 |
Journal | Journal of Allergy and Clinical Immunology |
Volume | 145 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2020 |
Funding
Supported by the Chronic Rhinosinusitis Integrated Studies Program (grant U19 AI106683-01); the Chronic Rhinosinusitis Integrated Studies Program 2 (grant P01AI145818); the Ernest Bazley Foundation; the National Institutes of Health National Center for Advancing Translational Sciences (grant UL1TR001422); and the Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine.
Keywords
- Chronic rhinosinusitis
- allergic rhinitis
- antibiotics
- asthma
- autoimmune disease
- eosinophils
- exacerbation
ASJC Scopus subject areas
- Immunology and Allergy
- Immunology