Efficacy and safety of the direct oral anticoagulants in patients with cerebral vein thrombosis : a systematic review and meta-analysis

Abstract

Vitamin K antagonists (VKAs) are the standard oral anticoagulant treatment for patients with cerebral venous thrombosis (CVT). However, the direct oral anticoagulants (DOACs) started replacing VKAs also in this setting. We aimed to evaluate safety and efficacy of the DOACs for CVT treatment. We performed a systematic review and meta-analysis (PROSPERO protocol registration number CRD42020191472). The electronic databases MEDLINE, EMBASE, CENTRAL were searched from inception to January 2022. We included randomized controlled trials (RCTs) and observational studies, enrolling at least 10 adult patients with CVT treated with any DOACs. Twenty-three studies were included, for a total of 618 CVT patients treated with DOACs (treatment duration range 3-12 months). Mortality rate was 1.76% (95% CI, 0.70-3.24%; 12=0%; 5/428 patients, 18 studies); major bleeding 2.41% (95% CI, 1.26-3.91%; I2=1.5%; 12/534 patients, 21 studies); recurrent thrombosis 2.05% (95% CI, 1.04-3.37%; I2=0%; 10/577 patients, 21 studies); excellent neurological outcome 85.9% (95% CI, 79.0-91.7%; I2=63.7%; 289/340 patients, 13 studies); vessel recanalization 89.0% (95% CI, 82.9-93.9%; I2=62.7%; 316/359 patients, 16 studies). No significant differences emerged by study design (RCTs vs observational studies) or by treatment (DOACs vs VKAs). This systematic review showed that the DOACs might represent a reasonable oral anticoagulant treatment option for CVT patients.