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Comparative Study
Journal Article
Imaging follow-up study of acute rhinosinusitis.
Laryngoscope 2016 September
OBJECTIVES/HYPOTHESIS: To evaluate with imaging the course of acute rhinosinusitis (ARS) and the associations between paranasal imaging results, symptoms, bony anatomic variations, and culture-proven bacterial ARS.
STUDY DESIGN: Inception cohort study with 50 conscripts with ARS.
METHODS: During a single ARS episode, we collected symptoms daily and took sequential cone-beam computed tomography (CBCT) scans of the paranasal sinuses of the same patients 2 to 3, 5 to 6 and 9 to 10 days after the onset of symptoms. Culture-proven bacterial ARS was verified with maxillary sinus aspiration and bacterial culture at 9 to 10 days.
RESULTS: At 2 to 3 days, 38% of the patients had major abnormalities, 42% had minor abnormalities in their paranasal sinuses, and 68% had an occluded ostiomeatal complex (OMC). At 5 to 6 days and 9 to 10 days, these proportions remained essentially the same. At 2 to 3 days, patients with bacterial ARS had slightly higher CBCT scores than those without bacterial ARS. Later, the CBCT and symptom scores gradually increased in patients with bacterial ARS and decreased in those without bacterial ARS. The CBCT and symptom scores had only a weak correlation (rs = 0.36), and anatomic variations were not related to development of bacterial ARS.
CONCLUSIONS: Paranasal mucosal abnormalities and occlusion of the OMC do not develop gradually during ARS, but are present when symptoms begin and remain fairly constant in most patients both with and without bacterial ARS. This indicates that the spread of the disease process to the paranasal sinuses and obstruction of the OMC may not be etiological factors in the development of bacterial ARS.
LEVEL OF EVIDENCE: 4 Laryngoscope, 126:1965-1970, 2016.
STUDY DESIGN: Inception cohort study with 50 conscripts with ARS.
METHODS: During a single ARS episode, we collected symptoms daily and took sequential cone-beam computed tomography (CBCT) scans of the paranasal sinuses of the same patients 2 to 3, 5 to 6 and 9 to 10 days after the onset of symptoms. Culture-proven bacterial ARS was verified with maxillary sinus aspiration and bacterial culture at 9 to 10 days.
RESULTS: At 2 to 3 days, 38% of the patients had major abnormalities, 42% had minor abnormalities in their paranasal sinuses, and 68% had an occluded ostiomeatal complex (OMC). At 5 to 6 days and 9 to 10 days, these proportions remained essentially the same. At 2 to 3 days, patients with bacterial ARS had slightly higher CBCT scores than those without bacterial ARS. Later, the CBCT and symptom scores gradually increased in patients with bacterial ARS and decreased in those without bacterial ARS. The CBCT and symptom scores had only a weak correlation (rs = 0.36), and anatomic variations were not related to development of bacterial ARS.
CONCLUSIONS: Paranasal mucosal abnormalities and occlusion of the OMC do not develop gradually during ARS, but are present when symptoms begin and remain fairly constant in most patients both with and without bacterial ARS. This indicates that the spread of the disease process to the paranasal sinuses and obstruction of the OMC may not be etiological factors in the development of bacterial ARS.
LEVEL OF EVIDENCE: 4 Laryngoscope, 126:1965-1970, 2016.
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