4.5 Article

Histopathologic Features of Chronic Rhinosinusitis in Diabetic Patients

Journal

OTOLARYNGOLOGY-HEAD AND NECK SURGERY
Volume 169, Issue 1, Pages 157-163

Publisher

WILEY
DOI: 10.1002/ohn.246

Keywords

chronic rhinosinusitis; diabetes mellitus; endotype; fungal rhinosinusitis; histopathology

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This retrospective study examined the impact of diabetes mellitus on chronic rhinosinusitis clinically and on structured histopathology. The findings suggest that diabetic patients with chronic rhinosinusitis have increased fungal elements on histopathology. This has important implications for the management of diabetic patients with chronic rhinosinusitis.
ObjectiveTo explore how diabetes mellitus impacts chronic rhinosinusitis clinically and on structured histopathology to provide insights on new potential chronic rhinosinusitis endotypes. Study DesignRetrospective cohort study. SettingTertiary academic center. MethodsA retrospective study of chronic rhinosinusitis patients who underwent functional endoscopic sinus surgery from 2015 to 2020 was performed. Structured 13-variable histopathology reports were generated from intraoperative sinonasal specimens. These variables were compared against demographic factors, comorbidities, culture data, and preoperative Lund-Mackay and SNOT-22 scores using logistic regression. ResultsThere were 411 patients, including 52 diabetics. Diabetes was associated with higher mean body mass index (34.9 vs 29.2; p < .001), age (57.8 vs 48.0; p < .001), and Gram-negative (40.2% vs 22.7%; p < .030) and coagulase-negative Staphylococcus (49.0% vs 28.5%; p = .008) culture rates. Black (23.1% vs 18.7%) and Hispanic (23.1% vs 8.6%) races were more common with diabetes (p = .026). Gender, smoking, polyp status, and Lund-Mackay and SNOT-22 scores did not differ between groups. Diabetics had more fungal elements (13.5% vs 3.3%, p = .018); no other histopathological differences were seen. When controlling for demographic variables and comorbidities, diabetes independently predicted the presence of fungal elements (HR 4.38, p = .018). ConclusionDiabetic chronic rhinosinusitis patients demonstrated increased fungal elements on structured histopathology. Other histopathological features were unaffected by diabetes. These findings may have important implications on the medical and surgical management of diabetic chronic rhinosinusitis patients in which early fungal disease assessment is paramount.

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