What is the Risk of Paradoxical Embolism score?
The Risk of Paradoxical Embolism score is a tool used to stratify patients with cryptogenic stroke with PFO by their likelihood that the PFO is stroke related. Factors in the score indicative of a higher likelihood of a PFO-dependent stroke mechanism are absence of hypertension, diabetes, prior stroke, or TIA; cortical infarct on imaging; and younger age group. Scores range from 0 to 10, with the estimated attributable fraction or probability that the PFO is stroke related ranging from 0% (95% CI, 0 4) for a Risk of Paradoxical Embolism score of 10.