RoPE Score (Risk of Paradoxical Embolism)
Applies the RoPE index (Risk of Paradoxical Embolism) after a cryptogenic stroke in which a patent foramen ovale was found.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Age
- 32 years
- No history of high blood pressure
- Yes
- No history of diabetes
- Yes
- No previous stroke or transient ischemic attack
- Yes
- Nonsmoker
- Yes
- Cortical infarct on imaging
- Yes
Result: 9 of 10
The tool opens with these values already filled in. Replace them with your own.
What the result means
- 0 to 3
- About 0 percent of strokes at this score are caused by the hole. Two-year recurrence of stroke or transient ischemic attack about 20 percent.
- 4
- Attributable fraction about 38 percent. Two-year recurrence about 12 percent.
- 5
- Attributable fraction about 34 percent, below the figure at 4 in the published table. Two-year recurrence about 7 percent.
- 6
- Attributable fraction about 62 percent. Two-year recurrence about 8 percent.
- 7
- Attributable fraction about 72 percent. Two-year recurrence about 6 percent.
- 8
- Attributable fraction about 84 percent. Two-year recurrence about 6 percent.
- 9 to 10
- About 88 percent of strokes at this score are caused by the hole. Two-year recurrence about 2 percent.
- Not a risk score
- The attributable fraction rises with the score while recurrence falls. A high number means the hole is more likely the cause AND another stroke is less likely.
- Age is most of it
- Age supplies up to 5 of the 10 points and the history items are all the absence of vascular disease, which is itself age-correlated.
What you enter
- Age
- No history of high blood pressure
- No history of diabetes
- No previous stroke or transient ischemic attack
- Nonsmoker
- Cortical infarct on imaging
How this is calculated
Kent DM, Ruthazer R, Weimar C, et al. An index to identify stroke-related vs incidental patent foramen ovale in cryptogenic stroke. Neurology. 2013;81(7):619-625. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.