Direct Oral Anticoagulants Versus Vitamin K Antagonists in Cerebral Venous Thrombosis: A Systematic Review and

Shadi Yaghi1, Ian J Saldanha2, Chelsea Misquith3

  • 1Department of Neurology, Brown University, Providence, RI (S.Y., B.Z., A.S., K.J., B.P., L.S., E.D.G., K.F.).

Stroke
|August 8, 2022
PubMed
Abstract

Insights

Direct oral anticoagulants (DOACs) show comparable efficacy and safety to warfarin for cerebral venous thrombosis patients. Further research is needed to confirm these findings in anticoagulant therapy.

Area of Science:

  • Neurology
  • Hematology
  • Pharmacology

Background:

  • High-level evidence for direct oral anticoagulants (DOACs) in cerebral venous thrombosis (CVT) is limited.
  • Vitamin K antagonists (VKAs) are a standard treatment, but DOACs offer potential advantages.

Purpose of the Study:

  • To systematically review and meta-analyze the efficacy and safety of DOACs compared to VKAs in patients with CVT.
  • To assess outcomes including recurrent venous thromboembolism, complete recanalization, and major hemorrhage.

Main Methods:

  • Systematic review and meta-analysis of randomized and non-randomized studies.
  • Searched multiple databases (MEDLINE, EMBASE, CINAHL, Web of Science) for studies comparing DOACs and VKAs in CVT patients.
  • Included 19 studies (3 RCTs, 16 observational studies) with 1950 patients.

Main Results:

  • DOACs demonstrated comparable efficacy to VKAs regarding recurrent venous thromboembolism (RR 0.85) and complete venous recanalization (RR 0.98).
  • Safety outcomes, including major hemorrhage (RR 0.70) and intracranial hemorrhage (RR 0.58), were also comparable between DOACs and VKAs.
  • No significant differences were observed in mortality rates between the two anticoagulant groups.

Conclusions:

  • Direct oral anticoagulants (DOACs) and warfarin appear to have comparable efficacy and safety profiles for treating cerebral venous thrombosis.
  • Findings should be interpreted cautiously due to limitations, including a low number of RCTs and modest sample sizes.
  • Further confirmation from ongoing randomized controlled trials and large prospective studies is warranted.

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