VascularReport
Screening guidelines · Carotid stenosis

SICVE-SNLG criteria and carotid stenosis risk profile

Evaluation of carotid stenosis with the criteria of the SICVE-SNLG guidelines for symptomatic and asymptomatic stenosis and an indicative estimate of the risk of stroke, based on cohort data and not valid as an individual prediction.

1. Neurological event ipsilateral to the carotid artery
The guideline considers a stenosis symptomatic if the last congruent cerebral or retinal ischemic event occurred within 3 months.
Used to set the timing and the criteria for 50–69% stenosis.
Neurological picture and neuroimaging
In severe acute stroke, extensive lesion or hemorrhagic transformation, revascularization is not recommended in the acute phase according to the guideline.
Enter the NASCET degree. If the report uses ECST, convert it first.
Factors that modify the indication
For asymptomatic stenosis, risk factors are assessed despite optimal medical therapy. The surgical high-risk conditions (heart failure, severe COPD, dialysis, decompensated diabetes, advanced cancer) also modify the advice on stenting in symptomatic stenosis.

How to read the result

The tool applies the SICVE-SNLG (2021) recommendations and supports an indicative risk estimate obtained from literature cohorts, as in the reference studies. The estimate is not a validated score nor an individual prediction: the actual risk depends on clinical characteristics, imaging, therapy and observation period.

Open the SICVE-SNLG guideline (PDF, recommendations 1.1–1.9, 2.1–2.12 and 3.1–3.7)

All clinical toolsNASCET / ECST CalculatorCarotid duplex technique