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cardiology infectious-disease

VIRSTA Score for Infective Endocarditis Risk in Bacteraemia

VIRSTA (Tubiana 2016): risk of infective endocarditis in adults with Staphylococcus aureus bacteraemia, assessed within 48 hours, to prioritise echocardiography. Score ≥ 3: echocardiography.

Score interpretation

Low IE Risk — Echo May Be Deferred 0–2

VIRSTA ≤ 2: infective endocarditis in 1.1% (negative predictive value 98.8%; Tubiana 2016).

→ Treat the bacteraemia; echocardiography can be deferred, but perform it if bacteraemia persists, the clinical picture changes or a device or prosthetic valve is present; infection specialist input.

High IE Risk — Echocardiography Indicated 3–30

VIRSTA ≥ 3: infective endocarditis in 17.4% (Tubiana 2016).

→ Urgent echocardiography (TTE, with TOE if TTE is non-diagnostic or a prosthetic valve or device is present); endocarditis team input.

Interpretation bands for the VIRSTA Score. Apply clinical judgement and local guidance.

References

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.