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Infective Endocarditis (Investigation (FBC: anaemia, infection (ESR),…
Infective Endocarditis
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Clinical features
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signs
Roth spots: These are round, boat-, or flame-shaped hemorrhages in the retina that result from septic emboli to the eye.
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Osler nodes/Osler spots: These are tender erythematous nodules on the hands and feet. The most commonly affected sites are the fingertips, but the side of the fingers, palms, soles, and toes may also be affected
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Investigation
FBC: anaemia, infection (ESR)
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Duke's CriteriaMajor CriteriaPositive Blood Culture
- typical organism from 2 blood culture
- persistent positive blood culture taken > 12 hrs
- 3 / more + culture taken over 1 hr
Endocardial Involvement
- positive echocardiograph findings
- new valvular regurgitation
Minor Criteria
- predisposing valvular / cardiac abnormality
- IVDU
- pyrexia >38
- embolic phenomenon
- vasculitic phenomenon
- blood culture
- suggestive echo findings
Diagnosis
2 major and 1 minor criteria or
1 major and 3 minor criteria or
5 minor criteria
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