Intracranial venous thrombosis in the parturient.

Intracranial venous thrombosis is a rare but potentially fatal complication of pregnancy and the postpartum period. The presenting symptoms can mimic those of a postdural puncture headache and are easily misdiagnosed, especially in a parturient who has undergone regional anesthesia. The incidence of 10-20 per 100,000 is likely higher than reported. The etiology, clinical presentation and course, risk factors, management, and relation of intracranial venous thrombosis to pregnancy are presented. Published case reports and series of intracranial venous thrombosis that have either occurred during the puerperium or involved women of childbearing age after dural puncture are summarized. Finally, the diagnosis and management of intracranial venous thrombosis in parturients, focusing on parturients who have undergone regional anesthesia, is discussed. When intracranial venous thrombosis occurs in a parturient after regional anesthesia, it is often treated as a post-dural puncture headache.