CVT score to predict early deterioration. The proposed score (right) was applied to our data set, revealing these percentages of patients with deterioration. Note that a score of ≥5 results in a ≥50% chance of deterioration versus a much lower risk with a lower score. Though this is a 10-point scale, none of our patients had a score of 10, so none was omitted from this figure. CVT, cerebral venous thrombosis; LOC, level of consciousness; OCPs, oral contraceptive pills.