Seasonal variations, acute rhinosinusitis and orbital infections in children.

Background: Orbital infections in children are commonly secondary to acute bacterial rhinosinusitis (ABRS). It is unclear whether seasonal variations can predispose to these complications mirroring acute rhinosinusitis incidence.

Objective: To determine the incidence of ABRS as a cause of orbital infections and whether seasonality is a risk factor.

Methods: A retrospective review of all children who presented to West Virginia University children's hospital between 2012 and 2022 were reviewed. All children with CT evidence of orbital infection were included. Date of occurrence, age, gender, and presence of sinusitis were reviewed. Children with orbital infection secondary to tumors, trauma, or surgery were excluded.

Results: 118 patients were identified with mean age of 7.3 years with 65 (55.1 %) males. 66 (55.9 %) children had concomitant sinusitis on CT scan, and the distribution of orbital complications per season showed 37 (31.4 %) cases occurred in the winter season, followed by 42 (35.6 %) cases in spring, 24 (20.3 %) cases in summer, and 15 (12.7 %) in fall. Children with orbital infections during winter & spring had sinusitis in 62 % of children vs. 33 % in other seasons (P = 0.02). Preseptal cellulitis was present in 79 (67 %) children, 39 (33 %) children with orbital cellulitis, and 40 (33.9 %) children with abscesses. 77.6 % children were treated with IV antibiotics and 94 % with oral antibiotics, and 14 (11.9 %) with systemic steroids. Only 18 (15.3 %) children required surgery.

Conclusions: There seems to be a seasonal predisposition for orbital complications mainly in the winter and spring seasons. Rhinosinusitis was present in 55.6 % of children presenting with orbital infections.