Conservative Management for Subperiosteal Orbital Abscess in Adults: A 20-Year Experience

Objective: Orbital complications (OC) secondary to acute rhinosinusitis (ARS) in adults are less common than in children, with assumed worse outcome. Materials and Methods: Adults with OC secondary to ARS between 1994 and 2014 were reviewed retrospectively. Parameters recorded included age, gender, clinical symptoms and signs, computed tomography (CT) scan findings, duration of hospitalization, treatment before and during admission, cultures, and outcome. Results: Thirty-seven adults with a mean age of 34.6 years, 27 males and 10 females, were diagnosed with OC, 19 (51.3%) with subperiosteal orbital abscess (SPOA), and none with orbital abscess/cellulitis or cavernous sinus thrombosis. Twelve patients with SPOA were managed conservatively with Amoxicillin-Clavulanate in most cases, and only 7 (36.8%) underwent surgery. A CT scan was performed in 27 cases revealing rhinosinusitis in all patients, including frontal involvement in 19 (51.3%) patients and sphenoid sinus in 16 (43.2%). Conclusions: A shift toward conservative treatment in cases of SPOA has long been integrated in the management protocols, mainly in children under 9 years old. The presumed worse prognosis in adults is not supported in our study, and a conservative treatment is urged to be considered in this group of patients albeit the more extensive radiologic involvement of their sinuses.