Abstract: Objectiv To explore the clinical features and treatment methods for subperiosteal orbital abscess secondary to acute sinusitis in children. Method The clinical features, computed tomographs and outcomes of different treatments for 35 children from 5 to 12 years old with subperiosteal orbital abscess secondary acute sinusitis were respectively analyzed. Results 13 cases were treated only by drugs and 22 by endoscopic drainages. The effects between the two groups were as follows: none in the former and 9 in the latter had a sight descent, 2 in the former and 14 in the latter had chemosis, 5 in the former and 17 in the latter had an eyeball displacement, none in the former and 13 in the latter had elevated intraocular pressure, and none in the former and 14 in the latter had extra-ocular movement restriction. The width of abscess in the former was significantly less than that in the latter (0.21cm vs1.35cm). Conclusions Endoscopic drainage should be applied for pediatric subperiosteal orbital abscess patients with sight descent, eyeball displacement, restriction of extraocular movements, intraocular pressure＞20mmHg and abscess width＞4mm.

Key words: Sinusitis, Orbital abscess, Child, Surgical procedures, operative