Micro - IE Flashcards
1
Q
IE
pathophysiology
A
endocardial surface damage by blood flow turbulence.
Platelet deposition, fibrin.
2
Q
Gram positive bacteria
A
Staph aureus ( gram pos, cat pos) = most common cause of IE
Staph epidermis, s. lugdenesis, s. saprophytics
( Gram pos, coag neg)
= common in false valves
streptococci and enterococci
3
Q
Gram negative
A
Associated with IVDU and false valves
Salmonella, E.coli, pseudemonas aeirignosa
4
Q
HACEK group
A
Heamophilus Aggregitibactor Cardiobacterium Homims Eikella Corredens Kingella Kingae
5
Q
Causes of culture negative IE
A
Neisseria species Moraxella Bartonella Coxiella Burnettti Chlamydia psitiici
6
Q
Investigations
A
Blood culture Bloods - CRP, ESR, thrombocytopenia, leukocytosis, anemia Urinalysis - protein, blood echo CXR
7
Q
Duke Criteria
A
major - culture positive for IE, evidence on echo
Minor - predisposition, fever, vascular phenomena, microbiological evidence.
