If you read it this paragraph did not make sense to me:
Key one-year clinical events adjudicated by the independent Clinical Events Committee included: Ischemic stroke rate of 2.9% per year (29 events in 27 patients) versus a predicted rate of 6.7 percent; and, device-related thrombus rate of 1.7 percent (18 events in 17 patients). In patient population at high risk for stroke – and major bleeding the need for blood-thinning medication was reduced.