The effect of recanalization on long-term neurological outcome after cerebral venous thrombosis

E. Rezoagli, I. Martinelli, D. Poli, U. Scoditti, S. M. Passamonti, P. Bucciarelli, W. Ageno, F. Dentali

Research output: Contribution to journalArticlepeer-review


Essentials: The role of cerebral venous thrombosis (CVT) recanalization on neurologic outcome is still debated. We studied a large cohort of 508 CVT patients with 419 patient years of radiological follow-up. Recanalization rate is high during the first months after CVT and neurologic outcome is favorable. High recanalization grade of CVT independently predicts good neurological outcome. Summary: Background: Studies with limited sample size and with discordant results described the recanalization time-course of cerebral venous thrombosis (CVT). The neurological outcome after a first episode of CVT is good, but the role of recanalization on neurological dependence is still debated. Objectives: The aim of the study is to assess the recanalization rate after cerebral venous thrombosis (CVT) and its prognostic role in long-term neurological outcome. Patients/Methods: In a retrospective observational multicenter cohort study, patients with an acute first episode of CVT with at least one available imaging test during follow-up were enrolled. Patency status of the vessels was categorized as complete, partial or not recanalized. Neurological outcome was defined using the modified Rankin scale (mRS) as good (mRS = 0-1) or poor (mRS = 2-6). Results: Five-hundred and eight patients (median [IQR] age, 39 [28.5-49] years; 26% male) were included. Complete or partial recanalization was not differently represented in patients undergoing scans at different periods of time (from 28-day to 3 month-period up to a 1-3 year-period). mRS at the time of follow-up imaging was available in 483 patients; 92.8% of them had a mRS of 0-1. CVT recanalization (odds ratio [OR], 2.56; 95% confidence interval [CI], 1.59-4.13) was positively associated, whereas cancer (OR, 0.29; 95% CI, 0.09-0.88), and personal history of venous thromboembolism (VTE) (OR, 0.36; 95% CI, 0.14-0.92) were negatively associated as independent predictors of favorable (mRS = 0-1) outcome at follow-up. Conclusions: Most patients with a first CVT had complete or partial recanalization at follow-up. Recanalization was independently associated with a favorable neurological outcome.

Original languageEnglish
Pages (from-to)718-724
JournalJournal of Thrombosis and Haemostasis
Issue number4
Publication statusPublished - 2018


  • Cerebral venous thrombosis
  • Modified Rankin scale
  • Neurological outcome
  • Recanalization
  • Stroke

ASJC Scopus subject areas

  • Hematology


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