local surgical infection Flashcards
eryspileas
almost always cause by beta hemolytic strep
- raised well defined border
- usually affects the lower limbs
-prutirc
If face affected, this source of infection is usually the nasoph. f face involved can have ‘butterfly’ distribution over the cheeks and the bridge of the nose.
most common cuase o erysiplels
Group A beta-hemolytic streptococcus
nectorizing fascitis can be mistakem for what
cellulitis, it looks like cellulitis but its rapidly spreading (which is why you need to demarcate the edge to see if its rapidly growing or not )
defintion of NF
is a DEEP soft tissue infection of the s.c tissue which spreads along the fascial planes but not the underlying muscle
how many types of NF
t is classified into into four types. The most common are type 1 (polymicrobial infection with anaerobes) and type 2 (monomicrobial infection with group A streptococci).
presentation of nF
On physical examination the affected region will be blistering and erythematous. In early stages mild oedema may be the only sign. There will either be severe pain or anaesthesia over the site of cellulitis. In advanced cases, the skin may be grey, with overlying crepitus. The patient is typically pyrexial, tachycardic, tachypnoeic, and hypotensive.
DIAGNOSIS
Radiography or CT/MRI can confirm the diagnosis, but should not delay surgery.
what’s a synonymous word you can use for nF in another part of the body
fournier’s gangrene (private parts scrotum and vulva )
SINCE CELLULITS AND NF PRESENT SIMILARLY how do you dx
cellulitis the patient will not appear too systemically unwell wherewas NF the vitals will show (tachy, hypotensive)
risk factor for nf
diabetes and immunosuppression
70% cases occur
most common cause of nF
group a beta hemolytic
what could imaging pick up in NF
GAS!!!!
