Clinical Significance of Early Computed Tomography Scan on Thrombus Regression Rate in Acute Pulmonary Embolism: Insights from the SAKURA PE/DVT REGISTRY

  • 0Division of Cardiology, Department of Medicine, Nihon University Itabashi Hospital, Nihon University School of Medicine.

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Summary

This summary is machine-generated.

Direct oral anticoagulants (DOACs) effectively treat venous thromboembolism (VTE), showing significant thrombus regression within two weeks. Early termination of intensive therapy for some patients did not increase adverse events, supporting DOACs

Area Of Science

  • Cardiology
  • Hematology
  • Radiology

Background

  • Direct oral anticoagulants (DOACs) are standard treatments for venous thromboembolism (VTE).
  • The impact of DOACs on thrombus regression and clinical outcomes following short-term monitoring requires further investigation.
  • Computed tomography (CT) monitoring after two weeks of therapy is a novel approach to assess treatment efficacy.

Purpose Of The Study

  • To evaluate patient characteristics, clinical events, and pulmonary artery thrombus regression in VTE patients treated with different DOACs.
  • To assess the effectiveness of rivaroxaban, apixaban, and edoxaban in VTE management.
  • To explore the feasibility of early termination of intensive therapy based on CT monitoring results.

Main Methods

  • Prospective, multicenter study in Japan involving 175 VTE patients treated with rivaroxaban, apixaban, or edoxaban.
  • Two-week post-therapy CT monitoring was used to assess thrombus regression rates.
  • Comparison of patient backgrounds, clinical outcomes, and thrombus regression rates across different DOACs.

Main Results

  • A median thrombus regression rate of 89.9% was observed within two weeks, with no significant differences between DOACs.
  • Rivaroxaban users had distinct characteristics, including higher body weight and pulmonary embolism prevalence.
  • Early termination of intensive rivaroxaban therapy in 35.8% of patients due to sufficient thrombus resolution did not increase VTE recurrence, bleeding, or mortality.

Conclusions

  • DOACs demonstrate substantial thrombus regression and a low incidence of VTE and bleeding events.
  • Two-week CT monitoring can guide early termination of intensive therapy, particularly for high-risk bleeding patients.
  • DOACs are effective and safe for VTE treatment, with potential for individualized therapy duration.

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