. 2017 Jul 21;2(3):195–221. doi: 10.1177/2396987317719364

Table 6.

Crude risk of CVT and other VTE related to pregnancy according antithrombotic prophylaxis.

Antithrombotic prophylaxis in women with prior CVT	VTEs (non-cerebral)		Recurrent CVT
Antithrombotic prophylaxis in women with prior CVT	Pregnancy	Puerperium	Pregnancy	Puerperium
No antithrombotic prophylaxis	2/43 47 per 1000 95% CI 13–155		1/57 18 per 1000 95% CI 3–93
Heparin	0/73 0 per 1000 95% CI 0–50	1/76 13 per 1000 95% CI 2–71	0/77 0 per 1000 95% CI 0–48	0/89 0 per 1000 95% CI 0–41
Antiplatelet	0/5 0 per 1000 95% CI 0–435	0/2 0 per 1000 95% CI 0–658	0/10 0 per 1000 95% CI 0–278	0/2 0 per 1000 95% CI 0–658

CVT: cerebral venous thrombosis; VTE: venous thromboembolism.