Duke Criteria
(Last Updated - 11/30/2006)
-Diagnosis Requires (one of the following):
-2 Major criteria
-1 Major & 3 Minor criteria
-5 Minor criteria
-Major Criteria:
1) Positive Blood Cultures (always check 3 cx's w/in 1st 24 hrs if IE suspected)
-Typical microorganism from 2 separate cx's
-Strep viridans
-Strep bovis
-HACEK Organsims:
Haemophilus
Actinobacillus actinomycete comitants
Cardiobacterium hominis
Eikenella
Kingella kingae
-Staph aureus
Community-acquired enterococcus
-Persistent positive blood cx's (from cx's drawn > 12 hrs apart)
-Single positive blood cx for Coxiella burnetii or IgG Ab titer > 1:800
2) Positive Echocardiogrpahic Findings (TEE for pt's w/ prostthetic valves)
-Oscillating intracardiac mass
-Abscess
-Or new partial dehiscence of prosthetic valve
3) New Valve Regurgitation
-Minor Criteria:
1) Predisposition: heart condition or IVDU
2) Fever: 38.0 C or 100.4 F
3) Vascular Phenomena: arterial emboli, septic pulm infarcts, mycotic aneurysm, ICH, conjunctival hemorrhages or Janeway lesions
4) Immunologic Phenomena: GNephritis, Osler's nodes, Roth spots, RheumFactor
5) Microbiologic Evidence: positive blood cx's not meeting Major criteria or serologic evidence of active infection w/ organism c/w IE
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