Diagnostic Accuracy of Symptoms, Endoscopy, and Imaging Signs of Chronic Rhinosinusitis Without Nasal Polyps Compared to Allergic Rhinitis.

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Diagnostic Accuracy of Symptoms, Endoscopy, and Imaging Signs of Chronic Rhinosinusitis Without Nasal Polyps Compared to Allergic Rhinitis.

Am J Rhinol Allergy. 2018 May;32(3):121-131

Authors: Koskinen A, Numminen J, Markkola A, Karjalainen J, Karstila T, Seppälä M, Julkunen A, Lemmetyinen R, Pekkanen J, Rautiainen M, Dastidar P, Hytönen M, Toppila-Salmi S

Abstract
Objectives The diagnosis of chronic rhinosinusitis without nasal polyps (CRSsNP) and distinguishing it from allergic rhinitis is difficult. Yet, early detection of CRSsNP is important to prevent progressive and severe chronic rhinosinusitis. Our aim was to compare diagnostic accuracy of symptoms, endoscopy, and imaging signs of CRSsNP and allergic rhinitis -only phenotypes. Setting Prospective controlled follow-up study. Participants Forty-two nonsmoking patients visiting tertiary care due to CRSsNP and 19 nonsmoking volunteer controls with allergic rhinitis filled a symptoms questionnaire and underwent nasal endoscopy off-seasonally. All CRSsNP patients underwent computed tomography scans of paranasal sinuses. All the allergic rhinitis control subjects and 14 of the CRSsNP patients underwent sinus magnetic resonance imaging. Results Radiologic Lund-Mackay score, duration of symptoms, visual analogue scale scores of symptoms, and Sinonasal Outcome Test 22 were significantly higher in the CRSsNP group compared to allergic rhinitis control group. These factors also correlated in part with each other. Endoscopic score did not correlate with other factors, nor did it differ between CRSsNP and allergic rhinitis groups. The highest area under curve value was demonstrated for visual analogue scale score of facial pain/pressure (0.93) and score ≥4/10 showed 60% sensitivity and 95% specificity for detecting CRSsNP group ( P < .001). Radiologic sign of obstructed osteomeatal complex showed 100% specificity and 38% sensitivity for detecting CRSsNP group ( P < .001). Conclusions CRSsNP phenotype could be primarily distinguished from allergic rhinitis by higher facial pain/pressure score and secondarily by radiologic sings of obstructed ostiomeatal complex and higher Lund-Mackay score. Endoscopic score has limited value in distinguishing CRSsNP from allergic rhinitis.

PMID: 29644866 [PubMed - indexed for MEDLINE]

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