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. Author manuscript; available in PMC: 2023 May 2.
Published in final edited form as: Stroke. 2014 Feb 6;45(5):1545–1588. doi: 10.1161/01.str.0000442009.06663.48

Table 7.

CVT and Recurrence Rates in Published Studies

Recurrence Rate, %
Study Subjects Enrolled, n % Female CVT Other Thrombosis Length of Follow-up
ISCVT94 624 74.5 2.2 4.3 16 mo
VENOPORT96 142 71 2.0 8.0 16 y
Martinelli et al197 145 73 3.0 7.0 6y
Coutinho et al193 94 72 NA NA NA
Dentali etal199 706 73.7 4.4 6.5 40 mo

CVT indicates cerebral venous thrombosis; ISCVT, International Study on Cerebral Vein and Dural Sinus Thrombosis; NA, not available; and VENOPORT, Cerebral Venous Thrombosis Portuguese Collaborative Study Group.