VIRSTA Score (IE Risk in S. aureus Bacteremia)
VIRSTA score for infective-endocarditis risk in S.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Cerebral / peripheral emboli
- Yes
- Preexisting native valve disease
- Yes
Result: VIRSTA 8 — ≥ 3: higher IE risk (~17%); echocardiography recommended.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Bands
- ≤ 2 low (IE ~1%, NPV ~99%; echo deferrable), ≥ 3 higher (~17%; echo recommended).
What you enter
- Cerebral / peripheral emboli (+5)
- Meningitis (+5)
- Intracardiac device or previous IE (+4)
- IV drug use (+4)
- Preexisting native valve disease (+3)
- Persistent bacteremia (+3)
- Vertebral osteomyelitis (+2)
- Community / non-nosocomial acquisition (+2)
The other 2 fields
- Severe sepsis / septic shock (+1)
- CRP > 190 mg/L (+1)
How this is calculated
- Items
- Emboli (5), meningitis (5), device/prior IE (4), IVDU (4), valve disease (3), persistent bacteremia (3), vertebral osteo (2), community acquisition (2), severe sepsis (1), CRP > 190 (1).
Tubiana S, Duval X, Alla F, et al. The VIRSTA score, a prediction score to estimate risk of infective endocarditis and determine priority for echocardiography in patients with Staphylococcus aureus bacteremia. J Infect. 2016;72(5):544-553. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.