Risk source | Features | RoPE score | |
Low¶ | High¶ | ||
Very high | A PFO and a straddling thrombus | Definite | Definite |
High | (1) Concomitant pulmonary embolism or deep venous thrombosis preceding an index infarct combined with either (2a) a PFO and an atrial septal aneurysm or (2b) a large-shunt PFO | Probable | Highly probable |
Medium | Either (1) a PFO and an atrial septal aneurysm or (2) a large-shunt PFO | Possible | Probable |
Low | A small-shunt PFO without an atrial septal aneurysm | Unlikely | Possible |