Diagnose endocarditis
The Duke criteria are used to rule in or rule out endocarditis.
Endocarditis is felt to be present in the following conditions:
'Possible endocarditis' is defined by 1 major and 1 or 2 minor clinical criteria, OR 3 minor clinical criteria
The diagnosis of endocarditis is 'rejected' in any of the following cases:
Beynon RP, Bahl VK, Prendergast BD.
Durack DT, Lukes AS, Bright DK.
Li JS, Sexton DJ, Mick N, et al.
a) Typical microorganisms consistent with IE from 2 seperate blood cultures:
i. Viridans streptococci, Streptococcus bovis, HACEK group, Staphylococcus aureus
ii. Community-acquired enterococci, in the absence of a primary focus
b) Microorganisms consistent with IE from persistently positive blood cultures, defined as follows:
i. At least 2 positive cultures of blood samples drawn >12 hours apart; or
ii. All of 3 or a majority of 4 separate cultures of blood (with first and last samples drawn at least 1 hour apart)
c) Single positive blood culture for Coxiella Burnetii or antiphase I IgG antibody titer >1:800
The Duke criteria are used to rule in or rule out endocarditis.
Endocarditis is felt to be present in the following conditions:
'Possible endocarditis' is defined by 1 major and 1 or 2 minor clinical criteria, OR 3 minor clinical criteria
The diagnosis of endocarditis is 'rejected' in any of the following cases:
Beynon RP, Bahl VK, Prendergast BD.
Durack DT, Lukes AS, Bright DK.
Li JS, Sexton DJ, Mick N, et al.
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