PROS1 and hyperinsulinemic hypoglycemia, familial, 4: During this period, 2 patients (7.7%) were classified as having a CRT, corresponding to a rethrombosis rate of 0.2 per 1000 catheter days in the total cohort (Table 4): 1 patient with known factor V Leiden and protein S deficiency demonstrated secondary asymptomatic thrombosis on echocardiographic imaging.