duke_iscvid_2023: 2023 Duke-ISCVID Criteria for Infective Endocarditis

In cliot: Clinical Indices and Outcomes Tools

2023 Duke-ISCVID Criteria for Infective Endocarditis

Description

Calculates the classification for Infective Endocarditis (IE) based on the 2023 Duke-International Society for Cardiovascular Infectious Diseases (ISCVID) Criteria. These criteria update the Modified Duke Criteria (2000) with clarifications on microbiology, new imaging modalities (PET/CT), and expanded lists of predisposing conditions and vascular phenomena.

Classifications returned: - Definite IE: Pathologic criteria OR 2 Major OR 1 Major + 3 Minor OR 5 Minor. - Possible IE: 1 Major + 1 Minor OR 3 Minor. - Rejected IE: Does not meet above criteria.

Usage

duke_iscvid_2023(pathologic_criteria, major_microbiology, major_imaging,
                 predisposition, fever, vascular, immunologic, minor_microbiology)

Arguments

pathologic_criteria	Numeric (0 or 1). Pathologic lesions (vegetations/intracardiac abscess) or microorganisms demonstrated by culture/histology/PCR in a cardiac vegetation, embolized vegetation, or intracardiac abscess.
major_microbiology	Numeric (0 or 1). Positive blood cultures for IE (typical microorganisms, persistent positives, single positive for C. burnetii, etc.) as defined by ISCVID 2023.
major_imaging	Numeric (0 or 1). Echocardiogram positive for IE (vegetation, abscess, perforation, etc.), Cardiac CT, or [18F]FDG-PET/CT showing abnormal metabolic activity.
predisposition	Numeric (0 or 1). Predisposing heart condition (prosthetic valve, prior IE, CHD, etc.) or Injection Drug Use (IDU).
fever	Numeric (0 or 1). Temperature > 38.0 degrees C.
vascular	Numeric (0 or 1). Vascular phenomena: arterial emboli, septic pulmonary infarcts, infectious (mycotic) aneurysm, intracranial hemorrhage, conjunctival hemorrhages, or Janeway's lesions.
immunologic	Numeric (0 or 1). Immunologic phenomena: Glomerulonephritis, Osler's nodes, Roth's spots, or Rheumatoid factor.
minor_microbiology	Numeric (0 or 1). Positive blood culture that does not meet a major criterion as noted above.

Value

A list containing the final Classification (Definite, Possible, or Rejected), the Reasoning (rule applied), and a count of Major/Minor criteria met.

References

Fowler VG, Durack DT, Selton-Suty C, et al. The 2023 Duke-ISCVID Criteria for Infective Endocarditis: Updating the Modified Duke Criteria. Clin Infect Dis. 2023;77(4):518-526. doi:10.1093/cid/ciad271

Examples

# Example 1: Definite IE (1 Major + 3 Minor)
# No Pathologic, Major Imaging, Fever, Vascular, Immunologic
duke_iscvid_2023(0, 0, 1, 0, 1, 1, 1, 0)

# Example 2: Possible IE (1 Major + 1 Minor)
# Major Micro, Predisposition only
duke_iscvid_2023(0, 1, 0, 1, 0, 0, 0, 0)

# Example 3: Definite IE via Pathologic Criteria
duke_iscvid_2023(1, 0, 0, 0, 0, 0, 0, 0)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.