Common skin and soft tissue infections 2 Flashcards Preview

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Flashcards in Common skin and soft tissue infections 2 Deck (18):
1

what is the most common cause of surgical site infections

staphylococcus aureus (mostly), but also coagulase negative staphylococci, enterobacteriaceae and anaerobes

2

what are some of the SSi predispoing factors (preoperative)

elderly, obesity, smoking, diabetes (the usual yadadada)

3

what are the SSI predispoing factors peri-operative

large incisions, foreign bodies, lengthy operations, spilage of micro-organisms

4

what are the SSi predispoing factors postoperative

ischaemia, haematomas, foreign bodies, exposed deep tissues

5

what is the diagnosis of surgical site infections

insepction, fever, raised infalmmatory markers (neutrophilia, CRP), micrscopy and culture of purulent discharge

6

what is the treatment for superficial incisional infections

Anti-staph antibiotics - flucloxacilin

7

what is the treatment for deep incisional infections

Tazocin. This covers gram positive, and aerobic gram negative bacilli + anaerobes

8

what is medical asepsis

defined as any practice that helps reduce the number adn spread of microorganisms

9

what is surgical asepsis

the complete removal of microorganisms and their spores from the surface of an object

10

i have skipped all of the usual stuff that is covered properly in the disinfection and sterilisation lecture

i have skipped all of the usual stuff that is covered properly in the disinfection and sterilisation lecture

11

how can we prevent surgical site infections

treat infection at distant sites before the procedure, screen and treat staphylococcus aureus colonisation, prepare the site with antiseptic (chlorhexidine) and good surgical technique

12

what are some of the microbes we can find in cat and dog bites

pastuerlla species, capnocytophaga canimorsus (good luck remembering them). These are both gram negative species
The usual yadadada of s.aureus and streptococci

These can cause massive problems for those without a spleen

13

what is the treatment for cat and dog bites

wounds debrided and irrigated
There's a low threshold for antibiotic therapy especially if it's after 48 hours
If there's puncture wounds that can't be debrided, wounds on face, hands and feet or wounds with underlying bone/joint involvement/immunocompromisation, use Augmentin

14

what is the cause of erysipeloid/fish handler's disease?

erysipelothrix rhusiopathiae, found in saltwater fish, shellfish, meat and hides

15

Ehat is the treatment for erysipeloid, and what can infections be complicated with?

Penicillin
Endocarditis, meningitis and osteoarticular infections can complicate

16

Why can human bites be worse than cat/dog bites?

They contain a greater number of bacterial species, including things like Eikenella spp, and anaerobes. Manage them as animal bites + consider blood-borne virus risk

17

What bacterial species can you be exposed to from fish tanks?

Mycobacterium marinarum.
This can cause sporotrichoid infections

18

What does antibiotic prophylaxis do?

Reduces SSI's by 80%, especially in high risk patients. Needs to be timed so that initial dose peaks at time of procedure.

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