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23 Cards in this Set
- Front
- Back
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what is a relatively common eyelid infection that involves the periorbital tissue anterior to the orbital septum?
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preseptal cellulitis
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what are some possible causes of preseptal cellulitis?
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URI, spread of an eyelid infection, trauma to the lids, insect bite.
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what tissue is invaded during preseptal cellulitis?
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subcutaneous.
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if there is no sign of trauma what is the usual cause of preseptal cellulitis
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URI
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what is the most common offending pathogens for preseptal cellulitis?
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staph aureus, staph epidermidis, streptococcus species, possibly H flu but it is not common now that we have the vaccine. Now a days streptococcus pneumoniae is the most common offender in children.
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true or false preseptal cellulitis could be secondary to things such as TB, Clamydia, juvenile idiopathic arthritis, or MRSA.
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true
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Red swollen eyelid, pain, epiphora, red eye, with a possible fever, what is it?
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preseptal cellulitis
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is preseptal cellulitis primarily a pediatric disease or adult?
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pediatric disease
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If you cannot rule out orbital cellulitis what is the best thing to do?
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order a CT.
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what is the treatment for preseptal cellulitis in an adult or older child?
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Amoxicillin/clavulanate 500 mg p.o. tid for 10 days. also you must follow up in 24 hours.
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what is the treatment for younger children (older than 5) that have preseptal cellulitis?
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amoxicillin/clavulanate 20 - 40 mg/kg/day by mouth divided into three doses X 10 days
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what do you need to use for preseptal cellulitis if a person is allergic to PCN?
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trimethoprim/sulfamethoxazole. an example is Bactrim.
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If a patient has preseptal cellulitis and it is moderate to sever, the pt is toxic, may be noncompliant, younger than 5, or there is no noticible improvement after a few days of treatment what should be done?
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Hospitalize for iv antibiotics.
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Orbital cellulitis is an infection of the orbital soft tissue posterior to the?
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orbital septum
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is orbital cellulitis more common in adults or children?
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children
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possible causes of orbital cellulitis?
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extension of an infection from the periorbital structures and sinuses, infection of the orbit following trauma, or surgery, or hematogenous spread of bacteremia.
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what kind of surgery must you ask about if a pt has orbital cellulitis.
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dental work
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what are the most common bacterial pathogens that cause orbital cellulitis?
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stph aureus, strept species, and H flu type B
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Mucor and Aspergillus are examples of what?
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fungal infections that cause orbital cellulitis. these are rare but they do have a high mortality rate.
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subjective symptoms: red swollen eye/eyelid, fever, malaise, URI history, headache, red eye, pain on eye movement tender to the touch, decrease vision, and double vision. what is the problem?
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orbital cellulitis.
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objective: decreased vision, lid edema and erythema, proptosis, conjunctival chemosis, restriction on EOM's, pain on eye movement, and may have elevated IOP, optic disc edema. what is it?
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orbital cellulitis.
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the key findings for orbital cellulitis are?
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ophthalmoplegia and proptosis.
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treatment for orbital cellulitis?
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HOSPITALIZATION!!!! IV whith broad spectrum antibiotics such as ampicillin-sulbactam. may also require surgical drainage.
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