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Reciprocal Predictive Accuracy of Sinonasal Symptom Severity, Nasal Endoscopy, and Frequency of Past Chronic Rhinosinusitis Exacerbations.
Otolaryngology - Head and Neck Surgery 2018 October
Objective We sought to determine whether chronic rhinosinusitis (CRS) symptom severity, endoscopic exam findings, and acute exacerbation of CRS (AECRS) frequency-all important and distinct clinical manifestations of CRS-would be predictive of each other and, therefore, inform when further assessment of each other metric should be pursued. Study Design Cross-sectional cohort study. Setting Tertiary academic rhinology clinic. Subjects and Methods In total, 241 patients with CRS were prospectively recruited and completed the 22-item Sinonasal Outcome Test (SNOT-22) to reflect CRS symptom severity. AECRS frequency was assessed using the number of sinus infections as well as CRS-related antibiotics and CRS-related oral corticosteroids used in the past 3 months. An endoscopy score was calculated for each patient. Results SNOT-22 score and AECRS were predictive of each other while AECRS and endoscopy score were not predictive of each other. SNOT-22 score could be used to predict having had, in the past 3 months, at least 1 sinus infection (area under the curve [AUC] = 0.727; P < .001), at least 1 CRS-related antibiotic used (AUC = 0.691; P < .001), or at least 1 CRS-related oral corticosteroid course used (AUC = 0.655; P < .001). Having a SNOT-22 score ≥30 could be predicted by reporting at least 1 sinus infection (AUC = 0.634; P < .001), CRS-related antibiotics (AUC = 0.614; P < .001), or CRS-related oral corticosteroids (AUC = 0.616; P < .001) in the past 3 months. These relationships held for patients with and without nasal polyps. Conclusion The predictive power of CRS outcome measures reflecting symptomatology, AECRS frequency, and endoscopic findings may be of clinical utility in situations where time or resources are limited to perform an ideally full assessment of patients with CRS.
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