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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