Orbital Cellulitis Flashcards
What does the bacteria infect?
fat and ocular muscles of orbit
What do you have to differentiate this from?
preseptal cellulitis
Who commonly gets OC?
young children
What usually causes OC?
rhinosinusitis
Where does infection begin?
ethmoid sinuses and goes to orbit via lamina papyracea
What else can cause this?
eye surgery, orbital trauma, dacryocystitis, dental infections
MCC?
s. aureus or strep
What is the presentation of preseptal cellulitis?
ocular pain and swelling
How do you treat preseptal cellulitis?
clindamycin or bactrim daily
What is the CM of orbital cellulitis?
ocular pain and swelling fever and leukocytosis swelling and inflammation pain with eye movement, proptosis ophthalmoplegia and diplopia
What do you have to do dx?
CT scan and brain, blood cultures and CBC
How do you treat orbital cellulitis?
vancomycin + ceftriaxone or cefotaxime or ampicillin-sulbactam or pipercillin-tazobactam
What are complications of orbital cellulitis?
Subperiosteal abscess formation Orbital abscess Cavernous sinus thrombosis Brain abscess Vision loss in 3-11% Death in 1-2%
