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Cerebral Venous Sinus Thrombosis in Users of a Hormonal Vaginal Ring

Oral contraceptive pills (OCPs) are a well-established precipitant of thrombosis. The local release of hormone from the vaginal ring still results in systemic administration and therefore predisposes users to increased risk of venous thrombosis. Although representing only 1% of strokes, cerebral venous sinus thrombosis is eight times more likely in women taking OCPs than in nonusers, and the incidence of cerebral venous sinus thrombosis associated with the vaginal ring is unknown but is likely to be increased.

We report four cases of cerebral venous sinus thrombosis in women using hormonal vaginal rings with negative thrombophilia testing who presented to our facility over a 2-year period. Three of the four women required mechanical thrombectomy in addition to anticoagulation, but all four women recovered and were discharged home with minimal or no neurologic deficits.

Increased recognition of the thrombogenic potential of hormonal vaginal rings may promote earlier venous imaging and result in better clinical outcomes.

Reference

Kenmuir CL, Jovin T, Jadhav A. Cerebral Venous Sinus Thrombosis in Users of a Hormonal Vaginal Ring. Obstet Gynecol. 2015 Oct;126(4):830-3. doi: 10.1097/AOG.0000000000000931. 

Content updated 16 October 2015

 

 

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