Journal
AMERICAN JOURNAL OF RHINOLOGY & ALLERGY
Volume 31, Issue 1, Pages 56-62Publisher
OCEAN SIDE PUBLICATIONS INC
DOI: 10.2500/ajra.2017.31.4402
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Background: Chronic rhinosinusitis with nasal polyps (CRSwNP) is a highly prevalent disease of the nasal cavity and paranasal sinus, but its exact etiology is still unclear and remains a difficult-to-treat condition. Hypothesis: Endoscopic sinus surgery (ESS) is an effective treatment for medically recalcitrant CRSwNP. There are independent variables that can predict surgical outcomes in patients with CRSwNP. Objectives: To evaluate ESS efficacy in CRSwNP treatment and to establish prognostic factors for disease recurrence. Methods: Eighty-five patients with CRSwNP submitted to ESS, and a minimum follow-up of 9 months was selected. Patient demographics, occupational organic exposure (e. g., cotton, fuel gas, wood dust) and inorganic dust exposure (e. g., bleach, metals, cement), comorbidities, previous nasal surgeries, pre-and postoperative symptoms, ear, nose and throat examination findings, computed tomography results, and medical and surgical treatment information were collected from medical records. Statistical analysis was performed. Results: All rhinologic symptoms improved after surgery, in a statistically significant way, with the best recovery rate for nasal obstruction and the worst for hyposmia. The major and minor complications rates were 1.2 and 15.3%, respectively. Disease recurrence occurred in 31% of the patient, but only 7% required surgical reintervention. Multivariate logistic regression analysis identified occupational dust exposure (p = 0.001) and non-immunoglobulin E (IgE) mediated asthma (p = 0.012) as independent predictive variables in CRSwNP recurrence, unlike the other tested variables: age, sex, IgE-mediated asthma, allergic rhinitis, smoking habits, nasal polyps endoscopic grade, Lund-Mackay score, and postoperative topical corticoid use. The adjusted logistic model presented a good discriminatory capacity with a receiver operating characteristic area under the curve of 0.82 (95% confidence interval, 0.73-0.91; p < 0.001). Conclusion: ESS proved to be an effective treatment in CRSwNP but with a considerable rate of recurrence. These results indicated an important correlation of occupational dust exposure and non-IgE-mediated asthma with disease recurrence.
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